20240056755. METHOD FOR AND APPARATUS FOR DECODING/RENDERING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS simplified abstract (Dolby Laboratories Licensing Corporation)

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METHOD FOR AND APPARATUS FOR DECODING/RENDERING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS

Organization Name

Dolby Laboratories Licensing Corporation

Inventor(s)

Florian Keiler of Hannover (DE)

Johannes Boehm of Göttingen (DE)

METHOD FOR AND APPARATUS FOR DECODING/RENDERING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240056755 titled 'METHOD FOR AND APPARATUS FOR DECODING/RENDERING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS

Simplified Explanation

The patent application describes improved methods and/or apparatus for decoding an encoded audio signal in soundfield format for a loudspeaker setup. The method and/or apparatus can convert an ambisonics format audio signal into a 2D loudspeaker setup using a rendering matrix. The rendering matrix is determined based on the positions of the loudspeakers and involves weighting at least one element of a first matrix with a weighting factor.

  • The patent application focuses on improving the decoding of an encoded audio signal in soundfield format for a loudspeaker setup.
  • It introduces a method and/or apparatus that can convert an ambisonics format audio signal into a 2D loudspeaker setup.
  • The conversion is achieved using a rendering matrix, which is determined based on the positions of the loudspeakers.
  • The rendering matrix involves weighting at least one element of a first matrix with a weighting factor.

Potential Applications:

  • This technology can be applied in various audio playback systems, such as home theaters, cinemas, and concert venues.
  • It can enhance the immersive audio experience for listeners by accurately reproducing soundfield recordings through a 2D loudspeaker setup.
  • The technology can be integrated into virtual reality (VR) and augmented reality (AR) systems to provide realistic and immersive audio environments.

Problems Solved:

  • The technology solves the problem of accurately decoding and rendering soundfield format audio signals for a specific loudspeaker setup.
  • It addresses the challenge of converting ambisonics format audio signals into a 2D loudspeaker setup while maintaining the integrity of the original soundfield recording.
  • The technology solves the problem of determining the appropriate weighting factors and positions of loudspeakers in the rendering matrix to achieve optimal audio reproduction.

Benefits:

  • The technology allows for the conversion of ambisonics format audio signals into a 2D loudspeaker setup, expanding the compatibility of soundfield recordings with existing audio playback systems.
  • It provides a more immersive and realistic audio experience for listeners by accurately reproducing soundfield recordings through a 2D loudspeaker setup.
  • The technology offers flexibility in audio playback systems, allowing for the use of a wide range of loudspeaker setups while maintaining high-quality audio reproduction.


Original Abstract Submitted

improved methods and/or apparatus for decoding an encoded audio signal in soundfield format for l loudspeakers. the method and/or apparatus can render an ambisonics format audio signal to 2d loudspeaker setup(s) based on a rendering matrix. the rendering matrix has elements based on loudspeaker positions and wherein the rendering matrix is determined based on weighting at least an element of a first matrix with a weighting factor

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