问题
I'm using openAL to play sound samples at specific intervals and I want to export this to file (be it caf or aac or whatever). How can I do this with OpenAL without having my samples played in real time through the speakers/headphones?
回答1:
If you're talking about exporting your musical score as a complete audio piece, there's nothing in OpenAL that will do such a thing.
The only way I can think of would be to use Audio Units for playback, and use it offline mode to dump to a file.
来源：https://stackoverflow.com/questions/5018136/offline-audio-recording-on-ios-with-openal