Pass through the sound

I want to pass through the sound on real time.


Input Bluetooth headset Mic ==== Output iPhone Line out(3.5mm jack or lightning adobpter)

and

Input iPhone Mic ==== Output Bluetooth headset speaker


I found "aurioTouch" which works with the sound as I want, but I have no way to use this in my app.

How can I make it possible?

Pass through the sound
 
 
Q