资 源 简 介
An audio driver that connects the PJSIP framework to the iPhone audio system, using the supplied Voice Processing I/O AudioUnit.
Benefits of using the Voice Processing I/O AudioUnit:
* Very low-latency
* Connects to input and output hardware
* Performs sample rate conversions between the hardware and your application
* Provides acoustic echo cancellation for two-way chat
* Does not use pjsip echo cancellation!
