amixer,aplay,arecord的使用 aplay 多声卡支持

最新推荐文章于 2025-06-08 09:00:03 发布
最新推荐文章于 2025-06-08 09:00:03 发布
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分类专栏： linux app

一.amixer用于控制设置

amixer的帮助提示信息

[cpp]
Usage: amixer <options> [command] 
 
Available options: 
  -h,--help       this help 
  -c,--card N     select the card 
  -D,--device N   select the device, default 'default' 
  -d,--debug      debug mode 
  -n,--nocheck    do not perform range checking 
  -v,--version    print version of this program 
  -q,--quiet      be quiet 
  -i,--inactive   show also inactive controls 
  -a,--abstract L select abstraction level (none or basic) 
  -s,--stdin      Read and execute commands from stdin sequentially 
 
Available commands: 
  scontrols       show all mixer simple controls 
  scontents       show contents of all mixer simple controls (default command) 
  sset sID P      set contents for one mixer simple control 
  sget sID        get contents for one mixer simple control 
  controls        show all controls for given card 
  contents        show contents of all controls for given card 
  cset cID P      set control contents for one control 
  cget cID        get control contents for one control 

Usage: amixer <options> [command]

Available options:
  -h,--help       this help
  -c,--card N     select the card
  -D,--device N   select the device, default 'default'
  -d,--debug      debug mode
  -n,--nocheck    do not perform range checking
  -v,--version    print version of this program
  -q,--quiet      be quiet
  -i,--inactive   show also inactive controls
  -a,--abstract L select abstraction level (none or basic)
  -s,--stdin      Read and execute commands from stdin sequentially

Available commands:
  scontrols       show all mixer simple controls
  scontents       show contents of all mixer simple controls (default command)
  sset sID P      set contents for one mixer simple control
  sget sID        get contents for one mixer simple control
  controls        show all controls for given card
  contents        show contents of all controls for given card
  cset cID P      set control contents for one control
  cget cID        get control contents for one control
主要用到的命令参数有

controls:列出控制项

contents:列出控制上下文(也就是控制项和值)

cset cID P:设置控制项值

cget cID:获取设置项值

使用方法:

1.先amixer controls列出所有控制项

[cpp]  numid=1,iface=MIXER,name='PCM Playback Volume' 
numid=22,iface=MIXER,name='Line DAC Playback Volume' 
numid=20,iface=MIXER,name='Line Line2 Bypass Volume' 
numid=21,iface=MIXER,name='Line PGA Bypass Volume' 
numid=32,iface=MIXER,name='Line Playback Switch' 
numid=25,iface=MIXER,name='Mono DAC Playback Volume' 
numid=23,iface=MIXER,name='Mono Line2 Bypass Volume' 
numid=66,iface=MIXER,name='Mono Mixer DACL1 Switch' 
numid=69,iface=MIXER,name='Mono Mixer DACR1 Switch' 
numid=64,iface=MIXER,name='Mono Mixer Line2L Bypass Switch' 
numid=67,iface=MIXER,name='Mono Mixer Line2R Bypass Switch' 
numid=65,iface=MIXER,name='Mono Mixer PGAL Bypass Switch' 
numid=68,iface=MIXER,name='Mono Mixer PGAR Bypass Switch' 
numid=24,iface=MIXER,name='Mono PGA Bypass Volume' 
numid=33,iface=MIXER,name='Mono Playback Switch' 
numid=39,iface=MIXER,name='ADC HPF Cut-off' 
numid=36,iface=MIXER,name='AGC Switch' 
numid=28,iface=MIXER,name='HP DAC Playback Volume' 
numid=26,iface=MIXER,name='HP Line2 Bypass Volume' 
numid=27,iface=MIXER,name='HP PGA Bypass Volume' 
numid=34,iface=MIXER,name='HP Playback Switch' 
numid=31,iface=MIXER,name='HPCOM DAC Playback Volume' 
numid=29,iface=MIXER,name='HPCOM Line2 Bypass Volume' 
numid=30,iface=MIXER,name='HPCOM PGA Bypass Volume' 
numid=35,iface=MIXER,name='HPCOM Playback Switch' 
numid=101,iface=MIXER,name='Left DAC Mux' 
numid=60,iface=MIXER,name='Left HP Mixer DACL1 Switch' 
numid=10,iface=MIXER,name='Left HP Mixer DACR1 Playback Volume' 
numid=63,iface=MIXER,name='Left HP Mixer DACR1 Switch' 
numid=58,iface=MIXER,name='Left HP Mixer Line2L Bypass Switch' 
numid=61,iface=MIXER,name='Left HP Mixer Line2R Bypass Switch' 
numid=8,iface=MIXER,name='Left HP Mixer Line2R Bypass Volume' 
numid=59,iface=MIXER,name='Left HP Mixer PGAL Bypass Switch' 
numid=62,iface=MIXER,name='Left HP Mixer PGAR Bypass Switch' 
numid=9,iface=MIXER,name='Left HP Mixer PGAR Bypass Volume' 
numid=48,iface=MIXER,name='Left HPCOM Mixer DACL1 Switch' 
numid=16,iface=MIXER,name='Left HPCOM Mixer DACR1 Playback Volume' 
numid=51,iface=MIXER,name='Left HPCOM Mixer DACR1 Switch' 
numid=46,iface=MIXER,name='Left HPCOM Mixer Line2L Bypass Switch' 
numid=49,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Switch' 
numid=14,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Volume' 
numid=47,iface=MIXER,name='Left HPCOM Mixer PGAL Bypass Switch' 
numid=50,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Switch' 
numid=15,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Volume' 
numid=100,iface=MIXER,name='Left HPCOM Mux' 
numid=78,iface=MIXER,name='Left Line Mixer DACL1 Switch' 
numid=4,iface=MIXER,name='Left Line Mixer DACR1 Playback Volume' 
numid=81,iface=MIXER,name='Left Line Mixer DACR1 Switch' 
numid=76,iface=MIXER,name='Left Line Mixer Line2L Bypass Switch' 
numid=79,iface=MIXER,name='Left Line Mixer Line2R Bypass Switch' 
numid=2,iface=MIXER,name='Left Line Mixer Line2R Bypass Volume' 
numid=77,iface=MIXER,name='Left Line Mixer PGAL Bypass Switch' 
numid=80,iface=MIXER,name='Left Line Mixer PGAR Bypass Switch' 
numid=3,iface=MIXER,name='Left Line Mixer PGAR Bypass Volume' 
numid=92,iface=MIXER,name='Left Line1L Mux' 
numid=91,iface=MIXER,name='Left Line1R Mux' 
numid=90,iface=MIXER,name='Left Line2L Mux' 
numid=93,iface=MIXER,name='Left PGA Mixer Line1L Switch' 
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' 
numid=95,iface=MIXER,name='Left PGA Mixer Line2L Switch' 
numid=96,iface=MIXER,name='Left PGA Mixer Mic3L Switch' 
numid=97,iface=MIXER,name='Left PGA Mixer Mic3R Switch' 
numid=38,iface=MIXER,name='PGA Capture Switch' 
numid=37,iface=MIXER,name='PGA Capture Volume' 
numid=99,iface=MIXER,name='Right DAC Mux' 
numid=13,iface=MIXER,name='Right HP Mixer DACL1 Playback Volume' 
numid=54,iface=MIXER,name='Right HP Mixer DACL1 Switch' 
numid=57,iface=MIXER,name='Right HP Mixer DACR1 Switch' 
numid=52,iface=MIXER,name='Right HP Mixer Line2L Bypass Switch' 
numid=11,iface=MIXER,name='Right HP Mixer Line2L Bypass Volume' 
numid=55,iface=MIXER,name='Right HP Mixer Line2R Bypass Switch' 
numid=53,iface=MIXER,name='Right HP Mixer PGAL Bypass Switch' 
numid=12,iface=MIXER,name='Right HP Mixer PGAL Bypass Volume' 
numid=56,iface=MIXER,name='Right HP Mixer PGAR Bypass Switch' 
numid=19,iface=MIXER,name='Right HPCOM Mixer DACL1 Playback Volume' 
numid=42,iface=MIXER,name='Right HPCOM Mixer DACL1 Switch' 
numid=45,iface=MIXER,name='Right HPCOM Mixer DACR1 Switch' 
numid=40,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Switch' 
numid=17,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Volume' 
numid=43,iface=MIXER,name='Right HPCOM Mixer Line2R Bypass Switch' 
numid=41,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Switch' 
numid=18,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Volume' 
numid=44,iface=MIXER,name='Right HPCOM Mixer PGAR Bypass Switch' 
numid=98,iface=MIXER,name='Right HPCOM Mux' 
numid=7,iface=MIXER,name='Right Line Mixer DACL1 Playback Volume' 
numid=72,iface=MIXER,name='Right Line Mixer DACL1 Switch' 
numid=75,iface=MIXER,name='Right Line Mixer DACR1 Switch' 
numid=70,iface=MIXER,name='Right Line Mixer Line2L Bypass Switch' 
numid=5,iface=MIXER,name='Right Line Mixer Line2L Bypass Volume' 
numid=73,iface=MIXER,name='Right Line Mixer Line2R Bypass Switch' 
numid=71,iface=MIXER,name='Right Line Mixer PGAL Bypass Switch' 
numid=6,iface=MIXER,name='Right Line Mixer PGAL Bypass Volume' 
numid=74,iface=MIXER,name='Right Line Mixer PGAR Bypass Switch' 
numid=84,iface=MIXER,name='Right Line1L Mux' 
numid=83,iface=MIXER,name='Right Line1R Mux' 
numid=82,iface=MIXER,name='Right Line2R Mux' 
numid=86,iface=MIXER,name='Right PGA Mixer Line1L Switch' 
numid=85,iface=MIXER,name='Right PGA Mixer Line1R Switch' 
numid=87,iface=MIXER,name='Right PGA Mixer Line2R Switch' 
numid=88,iface=MIXER,name='Right PGA Mixer Mic3L Switch' 
numid=89,iface=MIXER,name='Right PGA Mixer Mic3R Switch' 

numid=1,iface=MIXER,name='PCM Playback Volume'
numid=22,iface=MIXER,name='Line DAC Playback Volume'
numid=20,iface=MIXER,name='Line Line2 Bypass Volume'
numid=21,iface=MIXER,name='Line PGA Bypass Volume'
numid=32,iface=MIXER,name='Line Playback Switch'
numid=25,iface=MIXER,name='Mono DAC Playback Volume'
numid=23,iface=MIXER,name='Mono Line2 Bypass Volume'
numid=66,iface=MIXER,name='Mono Mixer DACL1 Switch'
numid=69,iface=MIXER,name='Mono Mixer DACR1 Switch'
numid=64,iface=MIXER,name='Mono Mixer Line2L Bypass Switch'
numid=67,iface=MIXER,name='Mono Mixer Line2R Bypass Switch'
numid=65,iface=MIXER,name='Mono Mixer PGAL Bypass Switch'
numid=68,iface=MIXER,name='Mono Mixer PGAR Bypass Switch'
numid=24,iface=MIXER,name='Mono PGA Bypass Volume'
numid=33,iface=MIXER,name='Mono Playback Switch'
numid=39,iface=MIXER,name='ADC HPF Cut-off'
numid=36,iface=MIXER,name='AGC Switch'
numid=28,iface=MIXER,name='HP DAC Playback Volume'
numid=26,iface=MIXER,name='HP Line2 Bypass Volume'
numid=27,iface=MIXER,name='HP PGA Bypass Volume'
numid=34,iface=MIXER,name='HP Playback Switch'
numid=31,iface=MIXER,name='HPCOM DAC Playback Volume'
numid=29,iface=MIXER,name='HPCOM Line2 Bypass Volume'
numid=30,iface=MIXER,name='HPCOM PGA Bypass Volume'
numid=35,iface=MIXER,name='HPCOM Playback Switch'
numid=101,iface=MIXER,name='Left DAC Mux'
numid=60,iface=MIXER,name='Left HP Mixer DACL1 Switch'
numid=10,iface=MIXER,name='Left HP Mixer DACR1 Playback Volume'
numid=63,iface=MIXER,name='Left HP Mixer DACR1 Switch'
numid=58,iface=MIXER,name='Left HP Mixer Line2L Bypass Switch'
numid=61,iface=MIXER,name='Left HP Mixer Line2R Bypass Switch'
numid=8,iface=MIXER,name='Left HP Mixer Line2R Bypass Volume'
numid=59,iface=MIXER,name='Left HP Mixer PGAL Bypass Switch'
numid=62,iface=MIXER,name='Left HP Mixer PGAR Bypass Switch'
numid=9,iface=MIXER,name='Left HP Mixer PGAR Bypass Volume'
numid=48,iface=MIXER,name='Left HPCOM Mixer DACL1 Switch'
numid=16,iface=MIXER,name='Left HPCOM Mixer DACR1 Playback Volume'
numid=51,iface=MIXER,name='Left HPCOM Mixer DACR1 Switch'
numid=46,iface=MIXER,name='Left HPCOM Mixer Line2L Bypass Switch'
numid=49,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Switch'
numid=14,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Volume'
numid=47,iface=MIXER,name='Left HPCOM Mixer PGAL Bypass Switch'
numid=50,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Switch'
numid=15,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Volume'
numid=100,iface=MIXER,name='Left HPCOM Mux'
numid=78,iface=MIXER,name='Left Line Mixer DACL1 Switch'
numid=4,iface=MIXER,name='Left Line Mixer DACR1 Playback Volume'
numid=81,iface=MIXER,name='Left Line Mixer DACR1 Switch'
numid=76,iface=MIXER,name='Left Line Mixer Line2L Bypass Switch'
numid=79,iface=MIXER,name='Left Line Mixer Line2R Bypass Switch'
numid=2,iface=MIXER,name='Left Line Mixer Line2R Bypass Volume'
numid=77,iface=MIXER,name='Left Line Mixer PGAL Bypass Switch'
numid=80,iface=MIXER,name='Left Line Mixer PGAR Bypass Switch'
numid=3,iface=MIXER,name='Left Line Mixer PGAR Bypass Volume'
numid=92,iface=MIXER,name='Left Line1L Mux'
numid=91,iface=MIXER,name='Left Line1R Mux'
numid=90,iface=MIXER,name='Left Line2L Mux'
numid=93,iface=MIXER,name='Left PGA Mixer Line1L Switch'
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'
numid=95,iface=MIXER,name='Left PGA Mixer Line2L Switch'
numid=96,iface=MIXER,name='Left PGA Mixer Mic3L Switch'
numid=97,iface=MIXER,name='Left PGA Mixer Mic3R Switch'
numid=38,iface=MIXER,name='PGA Capture Switch'
numid=37,iface=MIXER,name='PGA Capture Volume'
numid=99,iface=MIXER,name='Right DAC Mux'
numid=13,iface=MIXER,name='Right HP Mixer DACL1 Playback Volume'
numid=54,iface=MIXER,name='Right HP Mixer DACL1 Switch'
numid=57,iface=MIXER,name='Right HP Mixer DACR1 Switch'
numid=52,iface=MIXER,name='Right HP Mixer Line2L Bypass Switch'
numid=11,iface=MIXER,name='Right HP Mixer Line2L Bypass Volume'
numid=55,iface=MIXER,name='Right HP Mixer Line2R Bypass Switch'
numid=53,iface=MIXER,name='Right HP Mixer PGAL Bypass Switch'
numid=12,iface=MIXER,name='Right HP Mixer PGAL Bypass Volume'
numid=56,iface=MIXER,name='Right HP Mixer PGAR Bypass Switch'
numid=19,iface=MIXER,name='Right HPCOM Mixer DACL1 Playback Volume'
numid=42,iface=MIXER,name='Right HPCOM Mixer DACL1 Switch'
numid=45,iface=MIXER,name='Right HPCOM Mixer DACR1 Switch'
numid=40,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Switch'
numid=17,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Volume'
numid=43,iface=MIXER,name='Right HPCOM Mixer Line2R Bypass Switch'
numid=41,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Switch'
numid=18,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Volume'
numid=44,iface=MIXER,name='Right HPCOM Mixer PGAR Bypass Switch'
numid=98,iface=MIXER,name='Right HPCOM Mux'
numid=7,iface=MIXER,name='Right Line Mixer DACL1 Playback Volume'
numid=72,iface=MIXER,name='Right Line Mixer DACL1 Switch'
numid=75,iface=MIXER,name='Right Line Mixer DACR1 Switch'
numid=70,iface=MIXER,name='Right Line Mixer Line2L Bypass Switch'
numid=5,iface=MIXER,name='Right Line Mixer Line2L Bypass Volume'
numid=73,iface=MIXER,name='Right Line Mixer Line2R Bypass Switch'
numid=71,iface=MIXER,name='Right Line Mixer PGAL Bypass Switch'
numid=6,iface=MIXER,name='Right Line Mixer PGAL Bypass Volume'
numid=74,iface=MIXER,name='Right Line Mixer PGAR Bypass Switch'
numid=84,iface=MIXER,name='Right Line1L Mux'
numid=83,iface=MIXER,name='Right Line1R Mux'
numid=82,iface=MIXER,name='Right Line2R Mux'
numid=86,iface=MIXER,name='Right PGA Mixer Line1L Switch'
numid=85,iface=MIXER,name='Right PGA Mixer Line1R Switch'
numid=87,iface=MIXER,name='Right PGA Mixer Line2R Switch'
numid=88,iface=MIXER,name='Right PGA Mixer Mic3L Switch'
numid=89,iface=MIXER,name='Right PGA Mixer Mic3R Switch'2.如果对控制项不熟悉或者想查看当前的所有配置可以使用amixer contents

[cpp]
numid=1,iface=MIXER,name='PCM Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=127,step=0 
  : values=64,64 
  | dBscale-min=-63.50dB,step=0.50dB,mute=0 
numid=22,iface=MIXER,name='Line DAC Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=20,iface=MIXER,name='Line Line2 Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=21,iface=MIXER,name='Line PGA Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=32,iface=MIXER,name='Line Playback Switch' 
  ; type=BOOLEAN,access=rw------,values=2 
  : values=on,on 
numid=25,iface=MIXER,name='Mono DAC Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=23,iface=MIXER,name='Mono Line2 Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=66,iface=MIXER,name='Mono Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=69,iface=MIXER,name='Mono Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=64,iface=MIXER,name='Mono Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=67,iface=MIXER,name='Mono Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=65,iface=MIXER,name='Mono Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=68,iface=MIXER,name='Mono Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=24,iface=MIXER,name='Mono PGA Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=33,iface=MIXER,name='Mono Playback Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=39,iface=MIXER,name='ADC HPF Cut-off' 
  ; type=ENUMERATED,access=rw------,values=2,items=4 
  ; Item #0 'Disabled' 
  ; Item #1 '0.0045xFs' 
  ; Item #2 '0.0125xFs' 
  ; Item #3 '0.025xFs' 
  : values=0,0 
numid=36,iface=MIXER,name='AGC Switch' 
  ; type=BOOLEAN,access=rw------,values=2 
  : values=off,off 
numid=28,iface=MIXER,name='HP DAC Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=26,iface=MIXER,name='HP Line2 Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=27,iface=MIXER,name='HP PGA Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=34,iface=MIXER,name='HP Playback Switch' 
  ; type=BOOLEAN,access=rw------,values=2 
  : values=on,on 
numid=31,iface=MIXER,name='HPCOM DAC Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=29,iface=MIXER,name='HPCOM Line2 Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=30,iface=MIXER,name='HPCOM PGA Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0 
  : values=71,71 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=35,iface=MIXER,name='HPCOM Playback Switch' 
  ; type=BOOLEAN,access=rw------,values=2 
  : values=on,on 
numid=101,iface=MIXER,name='Left DAC Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=3 
  ; Item #0 'DAC_L1' 
  ; Item #1 'DAC_L3' 
  ; Item #2 'DAC_L2' 
  : values=2 
numid=60,iface=MIXER,name='Left HP Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=10,iface=MIXER,name='Left HP Mixer DACR1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=63,iface=MIXER,name='Left HP Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=58,iface=MIXER,name='Left HP Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=61,iface=MIXER,name='Left HP Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=8,iface=MIXER,name='Left HP Mixer Line2R Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=59,iface=MIXER,name='Left HP Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=62,iface=MIXER,name='Left HP Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=9,iface=MIXER,name='Left HP Mixer PGAR Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=48,iface=MIXER,name='Left HPCOM Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=16,iface=MIXER,name='Left HPCOM Mixer DACR1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=51,iface=MIXER,name='Left HPCOM Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=46,iface=MIXER,name='Left HPCOM Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=49,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=14,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=47,iface=MIXER,name='Left HPCOM Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=50,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=15,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=100,iface=MIXER,name='Left HPCOM Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=3 
  ; Item #0 'differential of HPLOUT' 
  ; Item #1 'constant VCM' 
  ; Item #2 'single-ended' 
  : values=0 
numid=78,iface=MIXER,name='Left Line Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=4,iface=MIXER,name='Left Line Mixer DACR1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=81,iface=MIXER,name='Left Line Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=76,iface=MIXER,name='Left Line Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=79,iface=MIXER,name='Left Line Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=2,iface=MIXER,name='Left Line Mixer Line2R Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=77,iface=MIXER,name='Left Line Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=80,iface=MIXER,name='Left Line Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=3,iface=MIXER,name='Left Line Mixer PGAR Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=92,iface=MIXER,name='Left Line1L Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=91,iface=MIXER,name='Left Line1R Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=90,iface=MIXER,name='Left Line2L Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=93,iface=MIXER,name='Left PGA Mixer Line1L Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=95,iface=MIXER,name='Left PGA Mixer Line2L Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=96,iface=MIXER,name='Left PGA Mixer Mic3L Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=97,iface=MIXER,name='Left PGA Mixer Mic3R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=38,iface=MIXER,name='PGA Capture Switch' 
  ; type=BOOLEAN,access=rw------,values=2 
  : values=on,on 
numid=37,iface=MIXER,name='PGA Capture Volume' 
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=119,step=0 
  : values=32,32 
  | dBscale-min=0.00dB,step=0.50dB,mute=0 
numid=99,iface=MIXER,name='Right DAC Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=3 
  ; Item #0 'DAC_R1' 
  ; Item #1 'DAC_R3' 
  ; Item #2 'DAC_R2' 
  : values=2 
numid=13,iface=MIXER,name='Right HP Mixer DACL1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=54,iface=MIXER,name='Right HP Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=57,iface=MIXER,name='Right HP Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=52,iface=MIXER,name='Right HP Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=11,iface=MIXER,name='Right HP Mixer Line2L Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=55,iface=MIXER,name='Right HP Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=53,iface=MIXER,name='Right HP Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=12,iface=MIXER,name='Right HP Mixer PGAL Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=56,iface=MIXER,name='Right HP Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=19,iface=MIXER,name='Right HPCOM Mixer DACL1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=42,iface=MIXER,name='Right HPCOM Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=45,iface=MIXER,name='Right HPCOM Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=40,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=17,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=116 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=43,iface=MIXER,name='Right HPCOM Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=41,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=18,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=44,iface=MIXER,name='Right HPCOM Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=98,iface=MIXER,name='Right HPCOM Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=5 
  ; Item #0 'differential of HPROUT' 
  ; Item #1 'constant VCM' 
  ; Item #2 'single-ended' 
  ; Item #3 'differential of HPLCOM' 
  ; Item #4 'external feedback' 
  : values=0 
numid=7,iface=MIXER,name='Right Line Mixer DACL1 Playback Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=72,iface=MIXER,name='Right Line Mixer DACL1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=75,iface=MIXER,name='Right Line Mixer DACR1 Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=70,iface=MIXER,name='Right Line Mixer Line2L Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=5,iface=MIXER,name='Right Line Mixer Line2L Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=73,iface=MIXER,name='Right Line Mixer Line2R Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=71,iface=MIXER,name='Right Line Mixer PGAL Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=6,iface=MIXER,name='Right Line Mixer PGAL Bypass Volume' 
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0 
  : values=118 
  | dBscale-min=-59.00dB,step=0.50dB,mute=1 
numid=74,iface=MIXER,name='Right Line Mixer PGAR Bypass Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=84,iface=MIXER,name='Right Line1L Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=83,iface=MIXER,name='Right Line1R Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=82,iface=MIXER,name='Right Line2R Mux' 
  ; type=ENUMERATED,access=rw------,values=1,items=2 
  ; Item #0 'single-ended' 
  ; Item #1 'differential' 
  : values=0 
numid=86,iface=MIXER,name='Right PGA Mixer Line1L Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=85,iface=MIXER,name='Right PGA Mixer Line1R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 
numid=87,iface=MIXER,name='Right PGA Mixer Line2R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=88,iface=MIXER,name='Right PGA Mixer Mic3L Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 
numid=89,iface=MIXER,name='Right PGA Mixer Mic3R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 

numid=1,iface=MIXER,name='PCM Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=127,step=0
  : values=64,64
  | dBscale-min=-63.50dB,step=0.50dB,mute=0
numid=22,iface=MIXER,name='Line DAC Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=20,iface=MIXER,name='Line Line2 Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=21,iface=MIXER,name='Line PGA Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=32,iface=MIXER,name='Line Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=25,iface=MIXER,name='Mono DAC Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=23,iface=MIXER,name='Mono Line2 Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=66,iface=MIXER,name='Mono Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=69,iface=MIXER,name='Mono Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=64,iface=MIXER,name='Mono Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=67,iface=MIXER,name='Mono Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=65,iface=MIXER,name='Mono Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=68,iface=MIXER,name='Mono Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=24,iface=MIXER,name='Mono PGA Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=33,iface=MIXER,name='Mono Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=39,iface=MIXER,name='ADC HPF Cut-off'
  ; type=ENUMERATED,access=rw------,values=2,items=4
  ; Item #0 'Disabled'
  ; Item #1 '0.0045xFs'
  ; Item #2 '0.0125xFs'
  ; Item #3 '0.025xFs'
  : values=0,0
numid=36,iface=MIXER,name='AGC Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=28,iface=MIXER,name='HP DAC Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=26,iface=MIXER,name='HP Line2 Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=27,iface=MIXER,name='HP PGA Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=34,iface=MIXER,name='HP Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=31,iface=MIXER,name='HPCOM DAC Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=29,iface=MIXER,name='HPCOM Line2 Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=30,iface=MIXER,name='HPCOM PGA Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=118,step=0
  : values=71,71
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=35,iface=MIXER,name='HPCOM Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=101,iface=MIXER,name='Left DAC Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=3
  ; Item #0 'DAC_L1'
  ; Item #1 'DAC_L3'
  ; Item #2 'DAC_L2'
  : values=2
numid=60,iface=MIXER,name='Left HP Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=10,iface=MIXER,name='Left HP Mixer DACR1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=63,iface=MIXER,name='Left HP Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=58,iface=MIXER,name='Left HP Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=61,iface=MIXER,name='Left HP Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=8,iface=MIXER,name='Left HP Mixer Line2R Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=59,iface=MIXER,name='Left HP Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=62,iface=MIXER,name='Left HP Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=9,iface=MIXER,name='Left HP Mixer PGAR Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=48,iface=MIXER,name='Left HPCOM Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=16,iface=MIXER,name='Left HPCOM Mixer DACR1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=51,iface=MIXER,name='Left HPCOM Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=46,iface=MIXER,name='Left HPCOM Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=49,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=14,iface=MIXER,name='Left HPCOM Mixer Line2R Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=47,iface=MIXER,name='Left HPCOM Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=50,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=15,iface=MIXER,name='Left HPCOM Mixer PGAR Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=100,iface=MIXER,name='Left HPCOM Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=3
  ; Item #0 'differential of HPLOUT'
  ; Item #1 'constant VCM'
  ; Item #2 'single-ended'
  : values=0
numid=78,iface=MIXER,name='Left Line Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=4,iface=MIXER,name='Left Line Mixer DACR1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=81,iface=MIXER,name='Left Line Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=76,iface=MIXER,name='Left Line Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=79,iface=MIXER,name='Left Line Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=2,iface=MIXER,name='Left Line Mixer Line2R Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=77,iface=MIXER,name='Left Line Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=80,iface=MIXER,name='Left Line Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=3,iface=MIXER,name='Left Line Mixer PGAR Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=92,iface=MIXER,name='Left Line1L Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=91,iface=MIXER,name='Left Line1R Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=90,iface=MIXER,name='Left Line2L Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=93,iface=MIXER,name='Left PGA Mixer Line1L Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=95,iface=MIXER,name='Left PGA Mixer Line2L Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=96,iface=MIXER,name='Left PGA Mixer Mic3L Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=97,iface=MIXER,name='Left PGA Mixer Mic3R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=38,iface=MIXER,name='PGA Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=37,iface=MIXER,name='PGA Capture Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=119,step=0
  : values=32,32
  | dBscale-min=0.00dB,step=0.50dB,mute=0
numid=99,iface=MIXER,name='Right DAC Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=3
  ; Item #0 'DAC_R1'
  ; Item #1 'DAC_R3'
  ; Item #2 'DAC_R2'
  : values=2
numid=13,iface=MIXER,name='Right HP Mixer DACL1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=54,iface=MIXER,name='Right HP Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=57,iface=MIXER,name='Right HP Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=52,iface=MIXER,name='Right HP Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=11,iface=MIXER,name='Right HP Mixer Line2L Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=55,iface=MIXER,name='Right HP Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=53,iface=MIXER,name='Right HP Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=12,iface=MIXER,name='Right HP Mixer PGAL Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=56,iface=MIXER,name='Right HP Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=19,iface=MIXER,name='Right HPCOM Mixer DACL1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=42,iface=MIXER,name='Right HPCOM Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=45,iface=MIXER,name='Right HPCOM Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=40,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=17,iface=MIXER,name='Right HPCOM Mixer Line2L Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=116
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=43,iface=MIXER,name='Right HPCOM Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=41,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=18,iface=MIXER,name='Right HPCOM Mixer PGAL Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=44,iface=MIXER,name='Right HPCOM Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=98,iface=MIXER,name='Right HPCOM Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=5
  ; Item #0 'differential of HPROUT'
  ; Item #1 'constant VCM'
  ; Item #2 'single-ended'
  ; Item #3 'differential of HPLCOM'
  ; Item #4 'external feedback'
  : values=0
numid=7,iface=MIXER,name='Right Line Mixer DACL1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=72,iface=MIXER,name='Right Line Mixer DACL1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=75,iface=MIXER,name='Right Line Mixer DACR1 Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=70,iface=MIXER,name='Right Line Mixer Line2L Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=5,iface=MIXER,name='Right Line Mixer Line2L Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=73,iface=MIXER,name='Right Line Mixer Line2R Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=71,iface=MIXER,name='Right Line Mixer PGAL Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=6,iface=MIXER,name='Right Line Mixer PGAL Bypass Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=118,step=0
  : values=118
  | dBscale-min=-59.00dB,step=0.50dB,mute=1
numid=74,iface=MIXER,name='Right Line Mixer PGAR Bypass Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=84,iface=MIXER,name='Right Line1L Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=83,iface=MIXER,name='Right Line1R Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=82,iface=MIXER,name='Right Line2R Mux'
  ; type=ENUMERATED,access=rw------,values=1,items=2
  ; Item #0 'single-ended'
  ; Item #1 'differential'
  : values=0
numid=86,iface=MIXER,name='Right PGA Mixer Line1L Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=85,iface=MIXER,name='Right PGA Mixer Line1R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=87,iface=MIXER,name='Right PGA Mixer Line2R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=88,iface=MIXER,name='Right PGA Mixer Mic3L Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=89,iface=MIXER,name='Right PGA Mixer Mic3R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off3.查看获取某个设置项的值用amixer cget  +控制参数

这里控制参数直接复制amixer controls打印出来的数据就行

类似numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'

[cpp]
root@dvr:/# amixer cget numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' 
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=off 

root@dvr:/# amixer cget numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off4.根据控制参数类型设置控制参数使用amixer cset +控制参数+" "+参数

记住要用空格隔开控制参数和参数

[cpp]
root@dvr:/# amixer cset numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' on 
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' 
  ; type=BOOLEAN,access=rw------,values=1 
  : values=on 

root@dvr:/# amixer cset numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch' on
numid=94,iface=MIXER,name='Left PGA Mixer Line1R Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on5.参数

values表示数值对于volume之类的是具体的数字,在上下文菜单中有显示数值的范围,

对于swith之类的表示开关一般是on或off

 

 

 二、aplay和arecord用于播放和记录

arecord帮助提示信息

[cpp]
Usage: arecord [OPTION]... [FILE]... 
 
-h, --help              help 
    --version           print current version 
-l, --list-devices      list all soundcards and digital audio devices 
-L, --list-pcms         list device names 
-D, --device=NAME       select PCM by name 
-q, --quiet             quiet mode 
-t, --file-type TYPE    file type (voc, wav, raw or au) 
-c, --channels=#        channels 
-f, --format=FORMAT     sample format (case insensitive) 
-r, --rate=#            sample rate 
-d, --duration=#        interrupt after # seconds 
-M, --mmap              mmap stream 
-N, --nonblock          nonblocking mode 
-F, --period-time=#     distance between interrupts is # microseconds 
-B, --buffer-time=#     buffer duration is # microseconds 
    --period-size=#     distance between interrupts is # frames 
    --buffer-size=#     buffer duration is # frames 
-A, --avail-min=#       min available space for wakeup is # microseconds 
-R, --start-delay=#     delay for automatic PCM start is # microseconds  
                        (relative to buffer size if <= 0) 
-T, --stop-delay=#      delay for automatic PCM stop is # microseconds from xrun 
-v, --verbose           show PCM structure and setup (accumulative) 
-V, --vumeter=TYPE      enable VU meter (TYPE: mono or stereo) 
-I, --separate-channels one file for each channel 
    --disable-resample  disable automatic rate resample 
    --disable-channels  disable automatic channel conversions 
    --disable-format    disable automatic format conversions 
    --disable-softvol   disable software volume control (softvol) 
    --test-position     test ring buffer position 
    --test-coef=#        test coeficient for ring buffer position (default 8) 
                        expression for validation is: coef * (buffer_size / 2) 
    --test-nowait       do not wait for ring buffer - eats whole CPU 
    --max-file-time=#   start another output file when the old file has recorded 
                        for this many seconds 
    --process-id-file   write the process ID here 
    --use-strftime      apply the strftime facility to the output file name 
Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE 
Some of these may not be available on selected hardware 
The availabled format shortcuts are: 
-f cd (16 bit little endian, 44100, stereo) 
-f cdr (16 bit big endian, 44100, stereo) 
-f dat (16 bit little endian, 48000, stereo) 

Usage: arecord [OPTION]... [FILE]...

-h, --help              help
    --version           print current version
-l, --list-devices      list all soundcards and digital audio devices
-L, --list-pcms         list device names
-D, --device=NAME       select PCM by name
-q, --quiet             quiet mode
-t, --file-type TYPE    file type (voc, wav, raw or au)
-c, --channels=#        channels
-f, --format=FORMAT     sample format (case insensitive)
-r, --rate=#            sample rate
-d, --duration=#        interrupt after # seconds
-M, --mmap              mmap stream
-N, --nonblock          nonblocking mode
-F, --period-time=#     distance between interrupts is # microseconds
-B, --buffer-time=#     buffer duration is # microseconds
    --period-size=#     distance between interrupts is # frames
    --buffer-size=#     buffer duration is # frames
-A, --avail-min=#       min available space for wakeup is # microseconds
-R, --start-delay=#     delay for automatic PCM start is # microseconds
                        (relative to buffer size if <= 0)
-T, --stop-delay=#      delay for automatic PCM stop is # microseconds from xrun
-v, --verbose           show PCM structure and setup (accumulative)
-V, --vumeter=TYPE      enable VU meter (TYPE: mono or stereo)
-I, --separate-channels one file for each channel
    --disable-resample  disable automatic rate resample
    --disable-channels  disable automatic channel conversions
    --disable-format    disable automatic format conversions
    --disable-softvol   disable software volume control (softvol)
    --test-position     test ring buffer position
    --test-coef=#        test coeficient for ring buffer position (default 8)
                        expression for validation is: coef * (buffer_size / 2)
    --test-nowait       do not wait for ring buffer - eats whole CPU
    --max-file-time=#   start another output file when the old file has recorded
                        for this many seconds
    --process-id-file   write the process ID here
    --use-strftime      apply the strftime facility to the output file name
Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE
Some of these may not be available on selected hardware
The availabled format shortcuts are:
-f cd (16 bit little endian, 44100, stereo)
-f cdr (16 bit big endian, 44100, stereo)
-f dat (16 bit little endian, 48000, stereo)
arecord -l列出声卡和数字音频设备

[cpp]
card 0: SOUND0 [TI81XX SOUND0], device 0: TVP-PCM tvp5158-hifi-0 [] 
  Subdevices: 1/1 
  Subdevice #0: subdevice #0 
card 0: SOUND0 [TI81XX SOUND0], device 1: AIC3X tlv320aic3x-hifi-1 [] 
  Subdevices: 1/1 
  Subdevice #0: subdevice #0 

card 0: SOUND0 [TI81XX SOUND0], device 0: TVP-PCM tvp5158-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: SOUND0 [TI81XX SOUND0], device 1: AIC3X tlv320aic3x-hifi-1 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
-D参数用于指定音频设备PCM

以hwx,x开头

根据上面l列出的设备,如果选择tvp5158来录制声音的话那么pcm设备就位hw0,0,如果是tlv320aic3x则pcm设备为hw0,1。

声卡号,设备号

-r指定采样频率:5512/8000/11025/16000/22050/32000/44100/48000/64000/88200/96000/176400/192000

-f指定采样格式上面列出了:cd/cdr/dat

 

录制音频的完整命令例子

[cpp]
arecord -Dhw:0,1 -r8000 -f cd /a/1.wmv 

arecord -Dhw:0,1 -r8000 -f cd /a/1.wmv之后在/a目录下可以找到1.wmv文件

 

aplay帮助提示信息

[cpp]
Usage: aplay [OPTION]... [FILE]... 
 
-h, --help              help 
    --version           print current version 
-l, --list-devices      list all soundcards and digital audio devices 
-L, --list-pcms         list device names 
-D, --device=NAME       select PCM by name 
-q, --quiet             quiet mode 
-t, --file-type TYPE    file type (voc, wav, raw or au) 
-c, --channels=#        channels 
-f, --format=FORMAT     sample format (case insensitive) 
-r, --rate=#            sample rate 
-d, --duration=#        interrupt after # seconds 
-M, --mmap              mmap stream 
-N, --nonblock          nonblocking mode 
-F, --period-time=#     distance between interrupts is # microseconds 
-B, --buffer-time=#     buffer duration is # microseconds 
    --period-size=#     distance between interrupts is # frames 
    --buffer-size=#     buffer duration is # frames 
-A, --avail-min=#       min available space for wakeup is # microseconds 
-R, --start-delay=#     delay for automatic PCM start is # microseconds  
                        (relative to buffer size if <= 0) 
-T, --stop-delay=#      delay for automatic PCM stop is # microseconds from xrun 
-v, --verbose           show PCM structure and setup (accumulative) 
-V, --vumeter=TYPE      enable VU meter (TYPE: mono or stereo) 
-I, --separate-channels one file for each channel 
    --disable-resample  disable automatic rate resample 
    --disable-channels  disable automatic channel conversions 
    --disable-format    disable automatic format conversions 
    --disable-softvol   disable software volume control (softvol) 
    --test-position     test ring buffer position 
    --test-coef=#        test coeficient for ring buffer position (default 8) 
                        expression for validation is: coef * (buffer_size / 2) 
    --test-nowait       do not wait for ring buffer - eats whole CPU 
    --max-file-time=#   start another output file when the old file has recorded 
                        for this many seconds 
    --process-id-file   write the process ID here 
    --use-strftime      apply the strftime facility to the output file name 
Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE 
Some of these may not be available on selected hardware 
The availabled format shortcuts are: 
-f cd (16 bit little endian, 44100, stereo) 
-f cdr (16 bit big endian, 44100, stereo) 
-f dat (16 bit little endian, 48000, stereo) 

Usage: aplay [OPTION]... [FILE]...

-h, --help              help
    --version           print current version
-l, --list-devices      list all soundcards and digital audio devices
-L, --list-pcms         list device names
-D, --device=NAME       select PCM by name
-q, --quiet             quiet mode
-t, --file-type TYPE    file type (voc, wav, raw or au)
-c, --channels=#        channels
-f, --format=FORMAT     sample format (case insensitive)
-r, --rate=#            sample rate
-d, --duration=#        interrupt after # seconds
-M, --mmap              mmap stream
-N, --nonblock          nonblocking mode
-F, --period-time=#     distance between interrupts is # microseconds
-B, --buffer-time=#     buffer duration is # microseconds
    --period-size=#     distance between interrupts is # frames
    --buffer-size=#     buffer duration is # frames
-A, --avail-min=#       min available space for wakeup is # microseconds
-R, --start-delay=#     delay for automatic PCM start is # microseconds
                        (relative to buffer size if <= 0)
-T, --stop-delay=#      delay for automatic PCM stop is # microseconds from xrun
-v, --verbose           show PCM structure and setup (accumulative)
-V, --vumeter=TYPE      enable VU meter (TYPE: mono or stereo)
-I, --separate-channels one file for each channel
    --disable-resample  disable automatic rate resample
    --disable-channels  disable automatic channel conversions
    --disable-format    disable automatic format conversions
    --disable-softvol   disable software volume control (softvol)
    --test-position     test ring buffer position
    --test-coef=#        test coeficient for ring buffer position (default 8)
                        expression for validation is: coef * (buffer_size / 2)
    --test-nowait       do not wait for ring buffer - eats whole CPU
    --max-file-time=#   start another output file when the old file has recorded
                        for this many seconds
    --process-id-file   write the process ID here
    --use-strftime      apply the strftime facility to the output file name
Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE
Some of these may not be available on selected hardware
The availabled format shortcuts are:
-f cd (16 bit little endian, 44100, stereo)
-f cdr (16 bit big endian, 44100, stereo)
-f dat (16 bit little endian, 48000, stereo)
aplay -l 列出声卡和数字音频设备

[cpp]
card 0: SOUND0 [TI81XX SOUND0], device 1: AIC3X tlv320aic3x-hifi-1 [] 
  Subdevices: 1/1 
  Subdevice #0: subdevice #0 
card 1: SOUND1 [TI81XX SOUND1], device 0: hdmi HDMI-DAI-CODEC-0 [] 
  Subdevices: 1/1 
  Subdevice #0: subdevice #0 

card 0: SOUND0 [TI81XX SOUND0], device 1: AIC3X tlv320aic3x-hifi-1 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: SOUND1 [TI81XX SOUND1], device 0: hdmi HDMI-DAI-CODEC-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
-D参数用于指定音频设备PCM

以hwx,x开头

根据上面l列出的设备,如果选择tlv320aic3x来播放声音的话那么pcm设备就位hw0,1,如果是hdmi则pcm设备为hw0,0。

声卡号,设备号

-r指定采样频率:5512/8000/11025/16000/22050/32000/44100/48000/64000/88200/96000/176400/192000

-f指定采样格式上面列出了:cd/cdr/dat

 

完整的播放例子：

[cpp]
aplay -Dhw:0,1 -r8000 -f cd /a/1.wmv 

aplay -Dhw:0,1 -r8000 -f cd /a/1.wmv


上面的例子必须先录制在播放,如果想要一边播放一边收听可以用下面利用管道的命令

[cpp]
arecord -Dhw:0,1 -r192000 -f cd|aplay -Dhw:0,1 -r192000 

arecord -Dhw:0,1 -r192000 -f cd|aplay -Dhw:0,1 -r192000
 

ALSA中amixer、aplay、arecord(三)
Android系统攻城狮
04-30 1584
# amixer # amixer controls # amixer controls|grep -i volum //获取耳机的音量 # amixer cget numid=16,iface=MIXER,name='Master Playback Volume' //设置耳机的音量 # amixer cset numid=16,iface=MIXER,name='Master Play...
【Linux】alsa-utils工具包alsactl、alsamixer、amixer、aplay、arecord等
郭老二
10-16 2770
https://blog.youkuaiyun.com/huangjiazhi_/article/details/105372990 alsamixer https://blog.youkuaiyun.com/j326214730/article/details/78390942 amixer -D hw:CODEC -M set PCM 100% amixer -D hw:CODEC cset name=‘PCM Playback Volume’ 128
alsa音频调试
时光总不留人，难得过去幸运
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alsa音频调试
指定声卡的方法
Li_Zengjie的博客
08-19 1472
入手一块OrangePi，写了个App程序通过USB声卡来输出声音，运行alsamixer 但是选中后，关闭AlsaMixer后仍然为audiocodec 。 解决方法： vim .asoundrc defaults.ctl.card 0 defaults.pcm.card 0 其中0为默认声卡，具体数字需要查看自己的具体声卡标号 lzj@or...
APlay：更好的iOS音频流与播放Swift框架
gitblog_00131的博客
06-08 271
APlay：更好的iOS音频流与播放Swift框架 项目介绍 APlay 是一个针对 iOS 平台的音频流和播放的 Swift 框架，致力于为开发者提供一种更高效、更便捷的音频处理方案。其设计理念是以更友好的方式集成和操作音频流，支持多种音频格式和协议，同时保持对 CPU 的友好性。 项目技术分析 APlay 框架基于 Swift 语言开发，充分利用了 iOS 系统的音频处理能力。它提供了一套简洁...
使用arecord、aplay 实现录音和播放
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xiongtiancheng的博客
06-05 5万+
1、arecord 录音1）查看录音设备输入 adb shell输入arecord –lC:\Users\Administrator&gt;adb shell / # arecord -l **** List of CAPTURE Hardware Devices **** card 0: xxsndcard [xx-snd-card], device 1: TDM_Capture (*) [] ...
Linux 音频录音播放 (arecord/aplay)
weixin_35723192的博客
02-21 5561
本篇讲解录音(arecord)和播放(aplay)命令。音频调试过程可检索声音输入设备的相关信息，也可验证音频输入输出设备；配合音频 amixer 设定的音频路由属性，适配 alsa 音频路由十分方便。
linux录制声卡声音_Linux ALSA 多声卡操作
weixin_33978451的博客
02-26 1229
Andrew Huang 转载请注明作者和网址.一般嵌入式系统只一个声音硬件作输出，所以大部分操作都采用默认的声卡即可操作。因此没有注意多网卡切换的问题，但是引入USB 声卡后，在嵌入式系统形成N个声卡，这样如果自动选定的缺省声卡，如何在应用程序切换声卡变成很现实的问题。因为设计关系统OSS是无法进行多声卡的操作,只有ALSA才支持.这个文章对于多声卡的操作描述很详细对于ALSA多声卡操作我重点关...
aplay -l 列出声卡和数字音频设备
yihui8的专栏
11-25 3489
转自：https://blog.youkuaiyun.com/orz415678659/article/details/8866944 aplay -l 列出声卡和数字音频设备 card 0: SOUND0 [TI81XX SOUND0], device 1: AIC3X tlv320aic3x-hifi-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: SOUND1 [TI81XX SOUND1], d..
amixer,aplay,arecord交叉编译及使用
paomadi的专栏
05-30 1万+
一.amixer用于控制设置  amixer的帮助提示信息 Usage: amixer [command] Available options: -h,--help this help -c,--card N select the card -D,--device N select the device, default 'default' -d,-
amixer 如何切通道_ALSA音频工具amixer,aplay,arecord
weixin_39671964的博客
12-19 779
ALSA音频工具编译安装 ========================================================================1.官网http://www.alsa-project.org下载alsa-lib和alsa-utils我的版本:alsa-lib-1.0.27.2.tar.bz2 和alsa-utils-1.0.27.2.tar.bz22.创建...
ALSA 音频工具 amixer、aplay、arecord
yufeng1108的专栏
10-25 713
ALSA 简介 　　ALSA 是 Advanced Linux Sound Architecture，高级 Linux 声音架构的简称，它在 Linux 操作系统上提供了音频和 MIDI（Musical Instrument Digital Interface，音乐设备数字化接口）的支持。在2.6系列内核中，ALSA 已经成为默认的声音子系统，用来替换2.4系列内核中的 OSS（Open Soun...
【全志T113-S3_100ask】9-音频输入与输出（amixer、aplay、arecord）
第四维度的博客
08-02 6663
之前查看系统命令，发现有个aplay命令，然后尝试使用 aplay -Dhw:audiocodec -vvv gz.wav播放音频，然后报错 aplay: pcm_write:2127: write error: Input/output error。找到了Headphone volume，意思是耳机音量，因为我们是使用3.5mm接口的，所以这一项和我们想要的很像。解释：比如想要设置主音量，第一次使用的话先得查询一下接口函数的配置参数，但是又不知道接口叫什么，先查询所有接口。耳机开关的输出是 off！...
arecord、aplay 实现录音和播放（linux）
休息一下接着来的博客
03-15 2960
arecord、aplay 实现录音和播放（linux） ​ 1.查看录音设备 $ arecord -l 2.录音 $ arecord -D hw:2,0 -d 10 -r 48000 -f S16_LE test.wav 参数解析 -D 指定了录音设备，2,0 是card 2 device 0的意思 -d 指定录音的时长，单位时秒(如果不加,可以使用Ctrl + C结束录音) -f 指定录音格式，通过上面的信息知道只支持 cd cdr dat -r 指定了采样率，单位时Hz -t 指定生成的文件格
【exp-linux】用aplay直接播放音频文件（mp3，wav）
dc3120的专栏
05-10 8708
// 用audacity 将mp3转换成wav格式文件，就可以直接用aplay播放了： // aplay播放MP3文件是杂音 aplay -l 可以查看音频播放设备有哪些 aplay xxx.wav 用默认设备播放 aplay -D plughw:1,0 xxx.wav // 用指定的设备播放 参考： 使用aplay实现音频播放 - kay880 - 博客园 ...
linux——alsa中多个声卡设备时打开某一指定声卡的PCM设备
夜风的博客
09-13 1万+
前言 最近调试板子上的3个ADAU1761音频接口，使用pocketsphinx语音库调用alsa库的API接口打开指定的Mic进行录入语音时出现异常，默认情况只能打开第一个ADAU1761音频接口，想打开第二个或第三个ADAU1761音频接口时却出现错误，本文记录一下调试的过程。 PCM设备选择 移植alsa lib 和alsa utils库后(移植教程见：传送门)可使用以下指令查看声卡设...
linux 终端使用aplay播放wav
m0_37596112的博客
01-19 1万+
aplay -D plughw:0,0 xxx.wav plughw后面的0，0指的是card0，device0.（声卡id和设备id），根据个人情况会有不同 声卡id和设备id可以通过aplay -l命令来查看 比如： upsquared@ubuntu:~/work18.7.12$ aplay -l **** List of PLAYBACK Hardware Devices **** ...
ubuntu linux多声卡设置默认声卡shell指令
09-06 5878
在命令窗口中输入aplay -l，或者arecord -l，如果出现card0 card1 card2 card3等字样，即表示系统有多声卡。 正常我们通过alsamixer指令进入界面，对应的系统默认声卡的设置界面；如果用amixer指令设置参数，也是对应系统默认声卡。 那么，系统默认声卡是哪个呢？怎么制定系统的默认声卡？ 在/etc/目录下，找到asound.conf文件，如果没有，则直接创建asound.conf文件，然后只需在里面...
amixer
最新发布
07-23
<think>我们正在讨论amixer的使用，这是一个用于控制ALSA声卡的命令行工具。根据引用[1]和[2]，我们了解到amixer是alsamixer的命令行版本，用于配置音频参数。 用户的问题：我想调整或控制音频设置，请问amixer audio control usage 因此，我们需要向用户解释如何使用amixer来控制音频设置。 步骤： 1. 介绍amixer的基本用法（获取帮助、列出设备、控制音量、开关通道等） 2. 提供常用命令示例 3. 注意事项 注意：根据引用[1]，amixer相对alsamixer（图形界面）来说更繁琐，但我们可以通过一些常用命令来简化操作。 由于引用[2]中给出了一个使用arecord录音的例子，但用户的问题是关于amixer的，所以我们将重点放在amixer上。 回答结构： 1. 简介amixer 2. 基本命令格式 3. 常用操作示例 4. 注意事项 同时，根据指令，我们需要在最后生成相关问题。</think>### amixer 音频控制使用指南 `amixer` 是 ALSA（Advanced Linux Sound Architecture）的命令行音频控制工具，用于调整声卡参数（如音量、通道开关等），比图形化工具 `alsamixer` 更灵活但需手动输入命令[^1]。以下是核心用法： --- #### **1. 基础命令格式** ```bash amixer [选项] [控制指令] [参数] ``` --- #### **2. 常用操作示例** | **功能** | **命令示例** | **说明** | |------------------------|-----------------------------------------------------------------------------|---------------------------------------| | **查看所有控制器** | `amixer controls` | 列出声卡所有可调参数（如音量、开关） | | **查看参数值** | `amixer sget Master` | 显示 `Master`（主音量）的当前值 | | **设置音量** | `amixer sset 'Master' 50%`<br>`amixer sset 'Headphone' 80%` | 将主音量设为 50%，耳机音量设为 80% | | **静音/取消静音** | `amixer sset 'Master' toggle`<br>`amixer sset 'Mic' mute` | 切换主音量静音 / 强制麦克风静音 | | **多通道控制** | `amixer -c 1 sset 'PCM' 90%` | 指定声卡编号（`-c 1`）设置 PCM 通道音量 | | **增量调节** | `amixer sset 'Master' 5%+`<br>`amixer sset 'Master' 5%-` | 音量增加/减少 5% | --- #### **3. 关键选项** - `-c N`：指定声卡编号（如 `-c 0` 表示第一张声卡） - `-D dev`：指定设备名（如 `-D hw:0,0` 表示硬件设备 0,0） - `-M`：使用百分比映射（兼容部分声卡的非线性音量） --- #### **4. 实用技巧** - **查找控制器名称**： 先运行 `amixer controls` 查看参数名（如 `'Master Playback Volume'`），再用于 `sset` 命令。 - **批量设置**： ```bash amixer sset 'Master' 80% && amixer sset 'Mic' 0% # 同时设置主音量和麦克风 ``` - **状态监控**： `watch -n 1 amixer sget Master` # 每秒刷新主音量值 --- #### **5. 注意事项** - 控制器名称需用单引号包裹（如 `'Line Out'`），避免空格导致的错误。 - 部分声卡需 `sudo` 权限才能修改设置。 - 若命令无效，检查声卡编号：`aplay -l` 查看可用设备。 > 示例参考：通过 `amixer` 调节录音参数（如麦克风增益）可优化 `arecord` 的录制效果[^2]。
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