20240056757. ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS simplified abstract (Dolby Laboratories Licensing Corporation)
ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS
Organization Name
Dolby Laboratories Licensing Corporation
Inventor(s)
Benjamin John Southwell of Gledswood Hills (AU)
Mark R.P. Thomas of Walnut Creek CA (US)
Christopher Graham Hines of Sydney (AU)
ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240056757 titled 'ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS
Simplified Explanation
The patent application describes a method for modifying audio playback signals using direct sequence spread spectrum (DSSS) signals. The method involves receiving a first content stream with audio signals, rendering the audio signals to produce audio playback signals, generating DSSS signals, inserting the DSSS signals into the audio playback signals to create modified audio playback signals, and playing back the modified audio playback signals through a loudspeaker system. The method also includes receiving microphone signals corresponding to the modified audio playback signals played back by multiple audio devices, extracting the DSSS signals from the microphone signals, and estimating acoustic scene metrics based on the extracted DSSS signals.
- The method involves modifying audio playback signals by inserting DSSS signals.
- The DSSS signals are generated and inserted into the audio playback signals.
- The modified audio playback signals are played back through a loudspeaker system.
- Microphone signals corresponding to the modified audio playback signals are received.
- DSSS signals are extracted from the microphone signals.
- Acoustic scene metrics are estimated based on the extracted DSSS signals.
Potential applications of this technology:
- Enhancing audio playback quality by modifying audio signals with DSSS signals.
- Improving the immersive experience in virtual reality or gaming applications.
- Noise cancellation and reduction in audio playback systems.
- Audio signal processing for teleconferencing or voice recognition systems.
Problems solved by this technology:
- Distortion or interference in audio playback signals can be reduced or eliminated.
- Background noise can be effectively canceled out for improved audio quality.
- Acoustic scene metrics can be estimated accurately for better understanding of the audio environment.
Benefits of this technology:
- Improved audio playback quality and fidelity.
- Enhanced user experience in various audio applications.
- Better noise cancellation and reduction capabilities.
- Accurate estimation of acoustic scene metrics for advanced audio processing.
Original Abstract Submitted
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 ndsss 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.
