Record and play audio Simultaneously

Question

Any one help to me to record and play audio Simultaneously in Iphone.

Answer 1

You can play and record simultaneously on iOS devices (except the 1st gen Touch) using either the Audio Unit RemoteIO or the Audio Queue API. These are lower level APIs where you have to handle the incoming buffers of outgoing and incoming PCM samples yourself.

See Apple's aurioTouch sample app for example code.