Multimedia framework to encode, decode, transcode, and stream audio and video with extensive codec support.

Python command-line tool to download audio and video from thousands of websites including YouTube, with advanced filtering and post-processing.

Audio codec library for lossy compression of voice and music.

High-quality MP3 encoder library and command-line tool for converting audio to MPEG Layer III format.

Command-line MP3 player and decoder library for UNIX systems.

Shared library providing ALSA (Advanced Linux Sound Architecture) audio and MIDI functionality on Linux.

C library for reading and writing Ogg bitstream containers.

C library for reading and writing audio files in WAV, AIFF, FLAC, and Ogg Vorbis formats.

Shared library implementing the Vorbis audio codec for lossy compression and playback.

Free Lossless Audio Codec (FLAC) command-line encoder/decoder and C library for lossless audio compression.

Sound server daemon that manages audio input/output across POSIX systems and applications.

High-quality audio sample-rate conversion library for resampling PCM audio at arbitrary ratios.

C library for Speex audio codec processing, including voice enhancement and echo cancellation.

Linux audio/video server and low-latency routing engine replacing PulseAudio and JACK.

Cross-platform C shared library for real-time audio input/output across Linux, macOS, and Windows.

Multimedia framework for encoding, decoding, transcoding, and streaming audio and video with extensive codec support.

C shared library for high-quality audio sample rate conversion (resampling).

Audio time-stretching and pitch-shifting library and command-line tool.

Real-time software synthesizer and MIDI player that renders SoundFont 2 files to audio, with both command-line and library interfaces.

Open-source audio codec optimized for speech compression, written in C.

Shared library of AMR-NB/AMR-WB speech codecs extracted from Android's OpenCORE framework.

C++ shared library for reading and writing audio file metadata (ID3, Vorbis, FLAC, etc.).

Open-source text-to-speech synthesizer supporting 100+ languages with formant synthesis, available as CLI and shared library.

C library for decoding and seeking in Opus audio files.

Audio file converter and effects processor supporting 30+ formats (WAV, MP3, FLAC, Ogg, etc.) with real-time filtering and synthesis.

Shared library for reading and extracting metadata from audio and video files.

C shared library for multi-channel audio mixing, decoding, and DSP effects with support for FLAC, Vorbis, MP3, Opus, and other formats.