MPEG Audio Decoder
| madplay | |
|---|---|
| Developer(s) | Robert Leslie | 
| Initial release | 2000 | 
| Stable release | 0.15.2b
   /    February 23, 2004 | 
| Repository | sourceforge | 
| Written in | C | 
| Operating system | Linux, FreeBSD, macOS | 
| Type | Media player | 
| License | GPLv2 | 
| Website | underbit | 
MPEG Audio Decoder (MAD) is a GPL library for decoding files that have been encoded with an MPEG audio codec. It was written by Robert Leslie and produced by Underbit Technologies. It was developed as a new implementation, on the ISO/IEC standards.
It consists of libmad, a software library, and madplay, a command-line program for MP3 playback. libmad is notable for using only fixed-point arithmetic while madplay is notable for its ReplayGain support.
Development ended decades ago, and vulnerabilities identified since then have gone unpatched.