Dolby Laboratories Licensing Corporation

Mark Rp Thomas

David Gunawan

Christopher Graham Hines

Benjamin John Southwell

Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Naudio device playback sound corresponding to second through Nmodified audio playback signals (including second through Nth DSSS signals) played back by second through Nth audio devices, extracting second through NDSSS signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through NDSSS signals.

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Walnut Creek, CA, United States of America

Mark Rp Thomas