20240056760. BINAURAL SIGNAL POST-PROCESSING simplified abstract (Dolby Laboratories Licensing Corporation)

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BINAURAL SIGNAL POST-PROCESSING

Organization Name

Dolby Laboratories Licensing Corporation

Inventor(s)

Dirk Jeroen Breebaart of Ultimo (AU)

Giulio Cengarle of Barcelona (ES)

C. Phillip Brown of Castro Valley CA (US)

BINAURAL SIGNAL POST-PROCESSING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240056760 titled 'BINAURAL SIGNAL POST-PROCESSING

Simplified Explanation

The patent application describes a method of audio processing that involves analyzing a binaural signal to estimate level differences and phase differences characteristic of a binaural filter. This analysis is used to extract the main and residual components of the binaural audio signal. The main and residual components are then processed differently using various object processing parameters such as repositioning, equalization, compression, upmixing, channel remapping, or storage. The processed binaural signal aims to provide an improved listening experience. Repositioning can be based on head tracking sensor data.

  • The method involves spatial analysis of a binaural signal to estimate level and phase differences.
  • Object extraction is performed on the binaural audio signal using the estimated differences to generate main and residual components.
  • The main and residual components are processed differently using various object processing parameters.
  • Repositioning can be based on head tracking sensor data.

Potential applications of this technology:

  • Virtual reality (VR) and augmented reality (AR) audio systems
  • Gaming consoles and immersive gaming experiences
  • Audio production and post-production for films and music
  • Hearing aids and assistive listening devices
  • Teleconferencing and communication systems

Problems solved by this technology:

  • Improves the spatial audio experience by accurately reproducing the sound localization cues present in binaural signals.
  • Enhances the immersion and realism of virtual and augmented reality experiences.
  • Provides personalized and adaptive audio processing based on individual listener preferences and head movements.

Benefits of this technology:

  • Improved audio quality and spatial accuracy in binaural audio playback.
  • Enhanced listening experience in various applications, including gaming, entertainment, and communication.
  • Personalized and adaptive audio processing for individual users.
  • Realistic and immersive sound reproduction in virtual and augmented reality environments.


Original Abstract Submitted

a method of audio processing includes performing spatial analysis on a binaural signal to estimate level differences and phase differences characteristic of a binaural filter of the binaural signal, performing object extraction on the binaural audio signal using the estimated level and phase differences to generate a left/right main component signal and a left/right residual component signal. the system may process the left/right main and left/right residual components differently using different object processing parameters for e.g. repositioning, equalization, compression, upmixing, channel remapping or storage to generate a processed binaural signal that provides an improved listening experience. repositioning may be based on head tracking sensor data.

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