RtAudio is a set of C++ classes that provide a common API (Application Programming Interface) for realtime audio input/output across Linux, Macintosh OS-X and Windows 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 two header files 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 API Notes section for information specific to each of the supported audio APIs.

Latest Updates (Version 4.0.12)

new functionality to allow error reporting via a client-supplied function (thanks to Pavel Mogilevskiy)
new function to return the version number
updated RtAudio.cpp and ASIO files for UNICODE support (thanks to Renaud Schoonbroodt)
updates to PulseAudio API support (thanks to Peter Meerwald and Tristan Matthews)
updates for pkg-config support in configure script
24-bit format changed to true 24-bit format, not sub-bytes of 32-bits (thanks to Marc Britton)
bug fixes to make sure stream status is closed if error during probeDeviceOpen
updates / fixes to SCHED_RR code in ALSA (thanks to Marc Lindahl)
various changes to avoid global variables (thanks to Martin Koegler)

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Latest Release (16 April 2013): Version 4.0.12

Latest Updates (Version 4.0.12)

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