Questions about the AQS - Stack Overflow

本文探讨了iOS设备上处理音频的问题,包括设置音频会话、使用AudioQueue服务播放PCM数据、解决AudioQueue缓冲区问题等,并提供了编码解码Speex的具体方法。

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Iphone Streaming and playing Audio Problem - Stack Overflow

And you should set the Audio Session When your app starts.
The important references are here.

However, What is the extension of Audio you are willing to decode?
AudioStreamPacketDescription is important if the Audio is Variable Frame per packet.
Otherwise, if One Frame per One Packet, AudioStreamPacketDescription is not significant.

What you do next is
To Set the audio session, To Get raw audio frame using decoder, To Put the frame into the Audio Buffer.
Instead of you, Make the system to fill the empty buffer.


iphone - AudioQueue ate my buffer (first 15 milliseconds of it) - Stack Overflow

http://stackoverflow.com/questions/2564830/audioqueue-ate-my-buffer-first-15-milliseconds-of-it

I'm not familiar with the iPhone audio APIs but it appears to be similar to other ones where generally you would queue up more than one buffer, This way when the system is finished processing the first buffer, it can immediately start processing the next buffer (since it's already been queued up) while the completion callback on the 1st buffer is being executed.


iphone - how to encode_decode speex with AudioQueue in ios - Stack Overflow

http://stackoverflow.com/questions/6914544/how-to-encode-decode-speex-with-audioqueue-in-ios/12209878#12209878


iphone - Using Audio Queue Services to play PCM data over a socket connection - Stack Overflow

http://stackoverflow.com/questions/2595872/using-audio-queue-services-to-play-pcm-data-over-a-socket-connection


iphone - AudioQueue callback in simulator but not on device - Stack Overflow

http://stackoverflow.com/questions/5218335/audioqueue-callback-in-simulator-but-not-on-device 

AudioSessionInitialize(NULL, NULL, NULL, NULL);
UInt32 category = kAudioSessionCategory_PlayAndRecord;  
int error = AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(category), &category);
if (error) printf("Couldn't set audio category!");




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