34、FreeBSD多媒体与Web服务器使用指南

FreeBSD多媒体与Web服务器使用指南

1. FreeBSD多媒体功能

1.1 CD播放器与混音器

KDE系统自带了一款CD播放器，它支持CDDB系统，能够自动从互联网下载专辑和曲目信息。

FreeBSD还配备了命令行混音器，通过以下操作可进行相关设置：
- 查看当前混音器设置 ：在命令提示符下输入 mixer 并回车，示例输出如下：

Mixer vol      is currently set to  90:90
Mixer bass     is currently set to  75:75
Mixer treble   is currently set to  75:75
Mixer synth    is currently set to  75:75
Mixer pcm      is currently set to  75:75
Mixer speaker  is currently set to  75:75
Mixer line     is currently set to  75:75
Mixer mic      is currently set to  32:32
Mixer cd       is currently set to  75:75
Mixer mix      is currently set to   0:0
Mixer igain    is currently set to  75:75
Mixer ogain    is currently set to