Dolby Laboratories Licensing Corporation (20240296822). ECHO REFERENCE GENERATION AND ECHO REFERENCE METRIC ESTIMATION ACCORDING TO RENDERING INFORMATION simplified abstract

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ECHO REFERENCE GENERATION AND ECHO REFERENCE METRIC ESTIMATION ACCORDING TO RENDERING INFORMATION

Organization Name

Dolby Laboratories Licensing Corporation

Inventor(s)

Benjamin John Southwell of Gledswood Hills, NSW (AU)

David Gunawan of Sydney, NSW (AU)

Yin-Lee Ho of Zetland, NSW (AU)

Senaka Chandranath Samarasekera of Baulkham Hills, NSW (AU)

ECHO REFERENCE GENERATION AND ECHO REFERENCE METRIC ESTIMATION ACCORDING TO RENDERING INFORMATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240296822 titled 'ECHO REFERENCE GENERATION AND ECHO REFERENCE METRIC ESTIMATION ACCORDING TO RENDERING INFORMATION

The patent application involves a method for managing echoes in an audio environment by receiving location information for multiple audio devices, generating rendering information based on this data, and determining echo reference metrics for the audio devices.

  • Location information is used to render information for the audio devices, which may include a matrix of loudspeaker activations.
  • Echo reference metrics are calculated based on the rendering information, with each metric corresponding to audio data reproduced by the devices.
  • Importance estimation is made for each echo reference based on the metrics, and certain references are selected for echo cancellation or suppression.
  • The selected echo references are provided to an echo management system for further processing.

Potential Applications: - Audio conferencing systems - Home theater systems - Virtual reality and augmented reality environments

Problems Solved: - Echo interference in audio playback - Improved audio quality in multi-device setups - Enhanced spatial audio experiences

Benefits: - Clearer audio reproduction - Minimized echo effects - Optimized audio device coordination

Commercial Applications: Title: "Advanced Echo Management System for Enhanced Audio Experiences" This technology can be applied in various commercial settings such as conference rooms, entertainment venues, and gaming environments to provide superior audio quality and immersive experiences.

Questions about the technology: 1. How does the system determine the importance of each echo reference? 2. What are the key factors considered in selecting echo references for cancellation or suppression?


Original Abstract Submitted

some implementations involve receiving location information for each of a plurality of audio devices in an audio environment, generating, based at least in part on the location information, rendering information for a plurality of audio devices in an audio environment and determining, based at least on part on the rendering information, a plurality of echo reference metrics. each echo reference metric may correspond to audio data reproduced by one or more audio devices of the plurality of audio devices. the rendering information may include a matrix of loudspeaker activations. some examples involve making, based at least in part on the echo reference metrics, an importance estimation for each of a plurality of echo references, selecting, based at least in part on the importance estimation, one or more echo references and providing them to at least one echo management system for canceling or suppressing echoes.

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