Title:
DYNAMIC RANGE CONTROL FOR VARIOUS REPRODUCTION ENVIRONMENT
Document Type and Number:
Japanese Patent JP2021097418
Kind Code:
A
Abstract:
To provide dynamic range control for various reproduction environment.SOLUTION: In an audio encoder, default gain is generated based on a default dynamic range compression (DRC) curve, for an audio content received in source audio format, and a non-default gain is generated for non-default gain profile. A finite difference gain is generated based on the default gain and the non-default gain. An audio signal including an audio content, a default DRC curve and the finite difference gain is generated. In the audio decoder, the default DRC curve and the finite difference gain are identified from the audio signal. A default gain is generated again on the basis of the default DRC curve. Based on the combination of the regenerated default gain and the finite difference gain, operation is executed for the audio content extracted from the audio signal.SELECTED DRAWING: Figure 3
Inventors:
JEROEN KOPPENS
JEFFREY RIEDMILLER
KRISTOFER KJOERLING
ALEXANDER GROESCHEL
HOLGER HOERICH
ALAN J SEEFELDT
JEFFREY RIEDMILLER
KRISTOFER KJOERLING
ALEXANDER GROESCHEL
HOLGER HOERICH
ALAN J SEEFELDT
Application Number:
JP2021051364A
Publication Date:
June 24, 2021
Filing Date:
March 25, 2021
Export Citation:
Assignee:
DOLBY LAB LICENSING CORP
DOLBY INT AB
DOLBY INT AB
International Classes:
H04S7/00; H04R3/00
Domestic Patent References:
| JP2012504260A | 2012-02-16 | |||
| JP2012034295A | 2012-02-16 | |||
| JP2013521539A | 2013-06-10 | |||
| JP2010537233A | 2010-12-02 |
Foreign References:
| US20120310654A1 | 2012-12-06 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki