audio control

Features playback and encoding codecs for audio and video

Leq (Long-term Equivalent Level) Analyzer for audio files and sound input stream

FLV Encoder is a video/audio capture and streaming application.

Check and repair your MP3 audio files.

It recognize thousands of musical pieces or other audio data in real-time.

Jackbeat is an audio sequencer running on Linux and Mac OS X.

ASIO4ALL - Universal ASIO Driver For WDM Audio

amoeba add to the sineqube library another set of methods for audio manipulation

This is malint, an MPEG Audio stream validator.

DXPSK is a good audio tool.