Method and device for applying dynamic range compression to a higher order ambisonics signal

Method and device for applying dynamic range compression to a higher order ambisonics signal

Abstract A method and an apparatus for applying dynamic range compression (DRC) to a Higher Order Ambisonics (HOA) signal in the time domain is disclosed. The method comprises receiving the HOA signal and one or more DRC gains Barc = 91, --,9(N+ )2 T , wherein N is an HOA order of the HOA signal; an...

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Hauptverfasser: KEILER, Florian, BOEHM, Johannes
Format: Patent
Sprache:eng
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ACOUSTICS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
STEREOPHONIC SYSTEMS
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creator KEILER, Florian
BOEHM, Johannes
description Abstract A method and an apparatus for applying dynamic range compression (DRC) to a Higher Order Ambisonics (HOA) signal in the time domain is disclosed. The method comprises receiving the HOA signal and one or more DRC gains Barc = 91, --,9(N+ )2 T , wherein N is an HOA order of the HOA signal; and applying the one or more DRC gains Barc to the HOA signal based on: Cdrc = DL'diag(grc)DL c wherein c is a vector of one time sample of HOA coefficients (c E R(N+1) 2 x1) of the HOA signal, and wherein DL E R(N+1) 2 x (N+1) 2 and its inverse DL 1 are matrices related to a Discrete Spherical Harmonics Transform (DSHT) optimized for DRC purposes.
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subjects ACOUSTICS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
STEREOPHONIC SYSTEMS
title Method and device for applying dynamic range compression to a higher order ambisonics signal
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