SAC - Simple Audio Compression

SAC is a container format for time domain audio codecs. It supports DD4A (4-bit Dynamic DPCM) and DD8A (8-bit Dynamic DPCM) data.

Here are some relevant resources:

• A blog post about the compression algorithms.
• The SAC format specification (work in progress).
• A C++ reference implementation (libsac).
• A few sound demos.
• The SAC conversion tool for 64-bit Windows and Linux.