ecasound is a software package designed for multi-track audio processing. It can be used for simple tasks like audio playback, recording and format conversions, as well as for multi-track effect processing, mixing, recording and signal recycling. ecasound supports a wide range of audio inputs, outputs and effect algorithms. Effects and audio objects can be combined in various ways, and their parameters can be controlled by operator objects like oscillators and -CCs.

A versatile console mode user-interface is included in the package.

It compiles cleanly under , with write-only /dev/dsp support.