OctoGRIS3 is a multichannel sound spatialization plugin
OctoGRIS3 is a multichannel sound spatialization plug-in (up to 8 sources / 16 speakers) available in Audio Unit and VST formats for Mac and PC. The free and open-source plug-in allows movement of multichannel sound sources on a variable set of speakers. Modes of grouped movement and a trajectory system are provided for spatialization of stereo and multichannel sources.
The development of OctoGRIS3 has ended on November 2016. It has been replaced by SpatGRIS which is a fusion of OctoGRIS and ZirkOSC:
https://sourceforge.net/projects/spatgris/
A tool for automated downmixing of live multitrack sound recordings
...Livemix uses SoX sound processing utity to do all the work with tracks
preprocessing and mixing, and LAME mp3 encoder to produce final mp3 file.
Therefore, livemix needs sox and lame executables to be in search path
or in the same dir as livemix executable.