Audio Developer's Guide

The Audio Developer's Guide is intended for developers who want to write audio applications using the QNX Sound Architecture (QSA) drivers and library.

This table may help you find what you need in this guide:

To find out about:	Go to:
The structure of an audio application	Audio Architecture
Playing and recording sound	Playing and Capturing Audio Data
The structure of a mixer	Mixer Architecture
Audio library functions	Audio Library
Why libasound.a isn't offered	ALSA and libasound.so
Terms used in this guide	Glossary

The key components of the QNX Audio driver architecture include:

io-audio

Audio system manager.

deva-ctrl-*.so drivers

Audio drivers. For more information, see the entries for the deva-* audio drivers in the QNX Neutrino Utilities Reference.

libasound.so

Programmer interface library.

<asound.h>, <asoundlib.h>

Header files in /usr/include/sys/.