20240029748. EFFICIENT DRC PROFILE TRANSMISSION simplified abstract (Dolby International AB)

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EFFICIENT DRC PROFILE TRANSMISSION

Organization Name

Dolby International AB

Inventor(s)

Holger Hoerich of Fuerth (DE)

Jeroen Koppens of Nederweert (NL)

EFFICIENT DRC PROFILE TRANSMISSION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240029748 titled 'EFFICIENT DRC PROFILE TRANSMISSION

Simplified Explanation

The abstract describes a method for decoding an encoded audio signal that contains a sequence of frames. The encoded audio signal represents different dynamic range control (DRC) profiles for different rendering modes. The frames of the sequence contain subsets of DRC profiles, and multiple frames together represent the complete set of DRC profiles. The method involves determining the rendering mode, selecting one or more DRC profiles from the current frame, checking if any of the selected profiles are applicable to the rendering mode, and choosing a default DRC profile if none of the selected profiles are applicable. The current frame is then decoded using the chosen DRC profile.

  • The method decodes an encoded audio signal that includes different DRC profiles for different rendering modes.
  • The DRC profiles are distributed across multiple frames of the sequence.
  • The method determines the rendering mode and selects the appropriate DRC profile from the current frame.
  • If no applicable DRC profile is found, a default DRC profile known to the decoder is selected.
  • The current frame is then decoded using the chosen DRC profile.

Potential applications of this technology:

  • Audio decoding systems that support multiple rendering modes and dynamic range control.
  • Multimedia devices that require efficient decoding of audio signals with different DRC profiles.
  • Streaming platforms that need to decode audio signals with varying dynamic range control.

Problems solved by this technology:

  • Efficient decoding of audio signals with different DRC profiles.
  • Handling different rendering modes and selecting the appropriate DRC profile.
  • Ensuring compatibility between encoded audio signals and decoding systems.

Benefits of this technology:

  • Improved audio quality and playback experience by applying the appropriate DRC profile.
  • Flexibility in supporting different rendering modes and dynamic range control.
  • Efficient decoding of audio signals with minimal computational resources.


Original Abstract Submitted

a method () for decoding an encoded audio signal () is described. the encoded audio signal () comprises a sequence of frames. furthermore, the encoded audio signal () is indicative of a plurality of different dynamic range control (drc) profiles for a corresponding plurality of different rendering modes. different subsets of drc profiles from the plurality of drc profiles are comprised within different frames of the sequence of frames, such that two or more frames of the sequence of frames jointly comprise the plurality of drc profiles. the method () comprises determining a first rendering mode from the plurality of different rendering modes; determining () one or more drc profiles from a subset of drc profiles comprised within a current frame of the sequence of frames; determining () whether at least one of the one or more drc profiles is applicable to the first rendering mode; selecting () a default drc profile as a current drc profile, if none of the one or more drc profiles is applicable to the first rendering mode; wherein definition data of the default drc profile is known at a decoder () for decoding the encoded audio signal (); and decoding the current frame using the current drc profile.

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