DirectShow AC3 filter.
ATRAC: Adaptive Transform Acoustic Coding for MiniDisc
ATRAC is an audio format based on psychoacoustic principles originally used for Sony MiniDisc players.
Free Lossless Audio Codec
FLAC is an open source lossless audio codec, supports streaming, seeking and archival.
MPE Secure Media
Secure streaming media format giving authors, songwriters and publishers complete control over products distributed through the internet.
Open audio compression format also known as MPC or MPEGPlus/MP+. Based on MPEG1 Layer-2/MP2 algorithms.
Loseless audio compression supporting IEEE Float audio data.
Open standard, high quality codec. Presentation, documentation, comparison with other formats, download links, source code repository.
Open audio codec designed for speech, part of the Xiph.org Foundation.
Study on Audio Compression
Detailed comparison of various audio compression algorithms including ASF, RealAudio, MP3, Ogg Vorbis, MOV, and VQF.
The Void: PC Audio Resource
Information about computer audio formats and sound cards.
Open lossless audio codec developed with the main requirements of reasonable compression level and high operation speed.
Open audio codec facilitating both loseless compression and a unique hybrid compression mode.