Swiped from the vorbis docs
- one channel
- the stream is monophonic
- two channels
- the stream is stereo. channel order: left, right
- three channels
- the stream is a 1d-surround encoding. channel order: left, center, right
- four channels
- the stream is quadraphonic surround. channel order: front left, front right, rear left, rear right
- five channels
- the stream is five-channel surround. channel order: front left, center, front right, rear left, rear right
- six channels
- the stream is 5.1 surround. channel order: front left, center, front right, rear left, rear right, LFE
- seven channels
- the stream is 6.1 surround. channel order: front left, center, front right, side left, side right, rear center, LFE
- eight channels
- the stream is 7.1 surround. channel order: front left, center, front right, side left, side right, rear left, rear right, LFE
- greater than eight channels
- channel use and order is undefined
1.8.8