I am recording LinearPCM using MonoTouch.AudioToolbox.InputAudioQueue and need to convert it prior to uploading to a web service. I want to keep recoding as LinearPCM so that I can handle interruptions (phone calls), playback audio (play, rewind, fast forward etc.).
Apple does support audio conversions using their Audio Conversion Services and see that MonoTouch includes functionality at MonoTouch.AudioUnitWrapper._AudioConverter. However, I can’t find a single MonoTouch example or StackOverflow question about it. 🙁
Does anyone know how to get audio converted using MonoTouch? I have looked into 3rd party libraries such as NSpeex, but want to keep it as native as possible.
Any help or pointers would be awesome! Thanks guys
Solved my question by converting to .m4a using using the MonoTouch sample AudioQueueOfflineRenderDemo.
AudioQueueOfflineRenderDemo @ GitHub