HsAudio C Source Library is an audio software library implemented in C language. HsAudio offers user applications a convenient API interface to the audio and sound functionality on Microsoft Windows, Apple MAC OS X and iPhone iOS. HsAudio can be used in implementing audio / sound streaming and voice communication / telephony applications.

HsAudio offers the following main features to user applications:
* Detection of installed audio devices
* Recording audio from system audio input devices
* Playback of audio to system audio output devices
* Single and dual frequency tone buffer synthethis / generation in software
* Operations on WAVE files
* Supported audio formats: Linear PCM, GSM 6.10, G.711 a-law and u-law
* Built-in jitter buffer

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