objective c - Detect & Read Any Outbound Audio Signals iOS -

I'm just starting my search in this question and just because there is a need for a fast turn I thought I Here's the question when I continue researching on my own.

I have the first question, is it possible to detect the outgoing audio signal from the device from any source - using core audio or any audio framework (or combination of) listed in the Dev Library?

My instinct tells me that it is closed.

Is there any experience with this?

I think that you can only detect it, not with its game or use

[[Avidi rash shared instant] secondary audio rocketbase cylinder hunt]

True when a non-mixable audio session is playing audio < / P>