US 2022/0286751 A1 · SIGNALING LOUDNESS ADJUSTMENT FOR AN AUDIO SCENE

Abstract

Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for loudness adjustment for an audio scene associated with an MPEG-I immersive audio stream. One apparatus includes processing circuitry that receives a first syntax element indicating a number of sound signals included in the audio scene. The processing circuitry determines whether one or more speech signals are included in the sound signals indicated by the first syntax element. The processing circuitry determines a reference speech signal from the one or more speech signals based on the one or more speech signals being included in the sound signals. The processing circuitry adjusts a loudness level of the reference speech signal of the audio scene based on an anchor speech signal. The processing circuitry adjusts loudness levels of the sound signals based on the adjusted loudness level of the reference speech signal.

Claims20

Dependent claims

A method for loudness adjustment in an audio scene associated with an MPEG-I immersive audio stream, the method comprising:

receiving a first syntax element indicating a number of sound signals included in the audio scene;
determining whether one or more speech signals are included in the sound signals indicated by the first syntax element;
determining a reference speech signal from the one or more speech signals based on the one or more speech signals being included in the sound signals;
adjusting a loudness level of the reference speech signal of the audio scene based on an anchor speech signal;
and
adjusting loudness levels of the sound signals based on the adjusted loudness level of the reference speech signal.

3 more elements

A method for loudness adjustment signaling for an audio scene associated with an MPEG-I immersive audio stream, the method comprising:

including a first syntax element indicating a number of sound signals included in the audio scene in loudness adjustment information, wherein
a reference speech signal is determined from the one or more speech signals in response to one or more speech signals being determined to be included in the sound signals indicated by the first syntax element,
a loudness level of the reference speech signal of the audio scene is adjusted based on an anchor speech signal, and
loudness levels of the sound signals are adjusted based on the adjusted loudness level of the reference speech signal.

1 more element

Dependencies are inferred from the claim text.

Signaling loudness adjustment for an audio scene

Life of this patent

Signaling loudness adjustment for an audio scene

Life of this patent

Abstract

Claims20