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