Psychoacoustically-Driven Multichannel Audio Coding

Multichannel audio rendering allows for the immersion of a listener into a rich acoustic scene, as compared to traditional stereophonic methods. Nevertheless, the excessive transmission and storage requirements of multichannel audio pose a considerable obstacle towards its widespread usage. A novel method is presented here with which a single channel of a multichannel signal is conventionally transmitted and stored while the remaining channels are resynthesized based on statistical conversion of the same, single channel-signal. The size of the parameters required for the resynthesis process is much smaller than the size of the original channel-signal for the same resulting audio quality.