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RtAudio

Build Status

A set of C++ classes that provide a common API for realtime audio input/output across Linux (native ALSA, JACK, PulseAudio and OSS), Macintosh OS X (CoreAudio and JACK), and Windows (DirectSound, ASIO and WASAPI) operating systems.

By Gary P. Scavone, 2001-2019 (and many other developers!)

This distribution of RtAudio contains the following:

  • doc: RtAudio documentation (see doc/html/index.html)
  • tests: example RtAudio programs
  • include: header and source files necessary for ASIO, DS & OSS compilation
  • tests/Windows: Visual C++ .net test program workspace and projects

Overview

RtAudio is a set of C++ classes that provides a common API (Application Programming Interface) for realtime audio input/output across Linux (native ALSA, JACK, PulseAudio and OSS), Macintosh OS X and Windows (DirectSound, ASIO and WASAPI) operating systems. RtAudio significantly simplifies the process of interacting with computer audio hardware. It was designed with the following objectives:

  • object-oriented C++ design
  • simple, common API across all supported platforms
  • only one source and one header file for easy inclusion in programming projects
  • allow simultaneous multi-api support
  • support dynamic connection of devices
  • provide extensive audio device parameter control
  • allow audio device capability probing
  • automatic internal conversion for data format, channel number compensation, (de)interleaving, and byte-swapping

RtAudio incorporates the concept of audio streams, which represent audio output (playback) and/or input (recording). Available audio devices and their capabilities can be enumerated and then specified when opening a stream. Where applicable, multiple API support can be compiled and a particular API specified when creating an RtAudio instance. See the \ref apinotes section for information specific to each of the supported audio APIs.

Further Reading

For complete documentation on RtAudio, see the doc directory of the distribution or surf to http://www.music.mcgill.ca/~gary/rtaudio/.

Legal and ethical:

The RtAudio license is similar to the MIT License. Please see LICENSE.