rplay is a flexible network audio system that allows sounds to be played to
and from local and remote systems.

* 8-bit & 16-bit audio input and output.

* .au, .snd, .aiff, .wav, .voc, .ub, .ul, G.721 4-bit, G.723 3-bit, and
  G.723 5-bit audio files.

* Stereo input and output. (2 channels)

* Sounds can be played at any sample rate.