20240046910. REAL-TIME DETECTION OF FEEDBACK INSTABILITY simplified abstract (Bose Corporation)

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REAL-TIME DETECTION OF FEEDBACK INSTABILITY

Organization Name

Bose Corporation

Inventor(s)

David J. Warkentin of Boston MA (US)

REAL-TIME DETECTION OF FEEDBACK INSTABILITY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240046910 titled 'REAL-TIME DETECTION OF FEEDBACK INSTABILITY

Simplified Explanation

The abstract describes a patent application for a system that combines a playback audio signal with a feedback signal from a microphone to create a first combined signal. This first combined signal is then filtered with a feedback filter to generate a driver command signal. The driver command signal is used to drive an acoustic transducer, converting it into acoustic energy. The first combined signal is also compared with the feedback signal to detect any feedback instability based on the comparison.

  • The system combines playback audio and feedback signals to create a combined signal.
  • The combined signal is filtered to generate a driver command signal.
  • The driver command signal is used to drive an acoustic transducer for acoustic energy conversion.
  • The combined signal is compared with the feedback signal to detect feedback instability.

Potential Applications:

  • This technology can be used in audio systems, such as speakers or headphones, to improve sound quality and prevent feedback instability.
  • It can be applied in live sound reinforcement systems to enhance the performance of microphones and speakers.

Problems Solved:

  • Feedback instability is a common issue in audio systems, causing unwanted noise and distortion. This technology helps detect and mitigate feedback instability, improving the overall audio experience.
  • By combining the playback audio and feedback signals, this system ensures a more accurate and controlled audio output.

Benefits:

  • Improved sound quality: By filtering the combined signal, the system can enhance the audio output, reducing unwanted noise and distortion.
  • Feedback prevention: The comparison between the combined signal and feedback signal allows for the early detection of feedback instability, preventing its occurrence.
  • Enhanced performance: The technology optimizes the driver command signal, resulting in better transduction of acoustic energy and improved overall performance of the acoustic transducer.


Original Abstract Submitted

a playback audio signal is combined with a feedback signal from a feedback microphone to provide a first combined signal. the first combined signal is filtered with a feedback filter to provide a driver command signal. the driver command signal is provided to an acoustic transducer for transduction to acoustic energy. the first combined signal is compared with the feedback signal to detect a feedback instability based upon the comparison.

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