06072878 is referenced by 32 patents and cites 17 patents.

Techniques of making a recording of or transmitting a sound field from either multiple monaural or directional sound signals that reproduce through multiple discrete loud speakers a sound field with spatial harmonics that substantially exactly match those of the original sound field. Monaural sound sources are positioned during mastering to use contributions of all speaker channels in order to preserve the spatial harmonics. If a particular arrangement of speakers is different than what is assumed during mastering, the speaker signals are rematrixed at the home, theater or other sound reproduction location so that the spatial harmonics of the sound field reproduced by the different speaker arrangement match those of the original sound field. An alternative includes recording or transmitting directional microphone signals, or their spatial harmonic components, and then matrixing these signals at the sound reproduction location in a manner that takes into account the specific speaker arrangement.

Title
Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
Application Number
8/936636
Publication Number
6072878
Application Date
September 24, 1997
Publication Date
June 6, 2000
Inventor
James A Moorer
San Rafael
CA, US
Agent
Majestic Parsons Siebert & Hsue
Assignee
Sonic Solutions
CA, US
IPC
H04R 5/00
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