Generic and specific C-to-E binaural cue coding (BCC) schemes are
described, including those in which one or more of the input channels are
transmitted as unmodified channels that are not downmixed at the BCC
encoder and not upmixed at the BCC decoder. The specific BCC schemes
described include 5-to-2, 6-to-5, 7-to-5, 6.1-to-5.1, 7.1-to-5.1, and
6.2-to-5.1, where "0.1" indicates a single low-frequency effects (LFE)
channel and "0.2" indicates two LFE channels.