Audio

A embedded/fixed-point Vorbis decoder

Official Opus low-latency codec repository

Audio output portability library.

Vorbis audio compression reference implementation

Tools for working with Ogg Vorbis audio

Free Lossless Audio Codec

A digital audio post-processing, restoration, filtering and mixdown tool.

Provides a simple programming interface for decoding and encoding audio data using the Xiph.org codecs (FLAC, Speex and Vorbis)