iOS6多路音频

通过允许用户在播放另一个耳机时听到耳机中的一个卡座,DJay app可以获得它的好处.

唯一提到它的是AVAudioSession类引用：

AVAudioSessionCategoryMultiRoute
Allows you to output distinct streams of audio data to different output devices at the same time. For example,you would use this category to route audio to both a USB device and a set of headphones. Use of this category requires a more detailed kNowledge of,and interaction with,the capabilities of the available audio routes.

This category may be used for input,output,or both.

Available in iOS 6.0 and later.

如何将两个不同的流路由到不同的路由？特别是使用远程I / O？

谢谢！