MP3 Butcher

MP3 Butcher allows cut pieces of MP3 audio files:

It gives you possibility to cut or trim any pieces of MPEG audio files with
high precision (up to single frame). Cutted pieces can be also connected together
into new file. The program is optimized for huge files (even up to 4GB) what
specially is useful for processing concerts, vinyls etc.

MP3 Butcher allows record mp3 files:

If user has installed DIVX codecs or Fraunhofer codec program will able to
record directly to mp3 file. This feature has been significantly optiomized to
work with slow processors. The program tries converts to mp3 in real time,
when it's impossible (when processor is busy) makes a buffer on hard disk
prevents continues recording.

MP3 Butcher allows make mixes of MP3s too:
MP3 Butcher for graphical displaying
treats fragments of mp3 files as so-called "nodes". Connections between nodes
makes an audio mix. In any moment user may reconnect nodes or temporarily
exclude them from the mix. At the beginning user must define parameters of
the node as: source file (any mp3), start point and stop point (in relation
to source file), volume, balans, speed etc. You can play selected nodes with
earlier established sequence or start from selected node. So created node
may be clone by copy/paste function. Connection between nodes allows fade
in or fade out. The fades option is possible only during playback.

Other functions:

It accepts scripts and has frame editor.

A website:

http://www.butcher.prv.pl