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butt (broadcast using this tool) is an easy to use, multi OS streaming tool.
It supports SHOUTcast and Icecast and runs on Linux, Mac OS X and Windows (64 Bit only since version 0.1.20).
The main purpose of butt is to stream live audio data from your computers Mic or Line input to a Shoutcast
or Icecast server. If you want you can also record your session.
butt is NOT able to stream audio files of any kind.

For more details and instructions have a look at the Manual [PDF]

If you are looking for a broadcasting tool for your iPhone or iPad visit iziCast




  • Works with SHOUTcast and Icecast

  • Supports SSL/TLS (Icecast only for now)

  • Runs on all three major operating systems. Mac OS X, Linux and Windows

  • Supports aac+, mp3, ogg/vorbis, ogg/opus and flac for streaming

  • Additionally supports recording in wav

  • Connects to a server after starting up automatically

  • Reconnects in case the connection was interrupted

  • Records after connecting to a server automatically

  • Supports simple control via command line

  • Supports multi-channel audio devices

  • Song names can be updated manually, via text file or via music apps (only MacOS and Linux)

  • Configuration files can be imported and exported

  • Status display shows infos about the current state (click on it)

  • Can automatically connect/disconnect on a configurable signal/silent period

  • Can automatically start/stop recording on a configurable signal/silent period

  • 10-band EQ

  • Dynamic Range Compressor

Latest Changes (2022-04-21)

  • Added equalizer presets

  • Added Spanish translation

  • Use 32 bit float for internal audio processing instead of 16 bit integer

  • FLAC can now be broadcasted and recorded as 16 bit or 24 bit

  • WAV can now be recorded as 16 bit, 24 bit or 32 bit

  • Massively improved client/server implementation for butt commands

  • Fixed bug that caused overwriting the first wav samples of a recording

  • Fixed read song name from for MacOS >= 11.0

  • Fixed record folder creation if folder contains format variables

  • butt commands can now also be sent via UDP

  • Added new info fields to the server status message

View ChangeLog for complete history.


butt at danielnoethen dot de