The Quite OK Audio Format

QOA is fast. It decodes audio 3x faster than Ogg-Vorbis, while offering better quality and compression than ADPCM (278 kbits/s for 44khz stereo).

QOA is simple. The reference en-/decoder fits in about 400 lines of C. The file format specification is a single page PDF.

• Reference en-/decoder on Github
• File Format Specification
• Quality comparison for 150 different audio samples
• Time Domain Audio Compression at 3.2 bits per Sample — the blog post announcing QOA
• The Quite OK Image Format – related in spirit

A list of tools, implementations and software supporting QOA can be found in the README on Github.

The QOA-Logo (framed version) and the specification pdf are released as public domain under the CC0 License and may be freely used.

Dominic Szablewski – phoboslab.org
made in Hesse <3