Title:
効率的なダッキング利得適用による改善されたメイン‐関連オーディオ体験
Document Type and Number:
Japanese Patent JP7434610
Kind Code:
B2
Abstract:
An audio bitstream is decoded into audio objects and audio metadata for the audio objects. The audio objects include a specific audio object. The audio metadata specifies frame-level gains that include a first gain and a second gain respectively for a first audio frame and a second audio frame. It is determined, based on the first and second gains, whether sub-frame gains are to be generated for the specific audio object. If so, a ramp length is determined for a ramp used to generate the sub-frame gains for the specific audio object. The ramp of the ramp length is used to generate the sub-frame gains for the specific audio object. A sound field represented by the audio objects with the sub-frame gains is rendered by audio speakers.
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| JP2017022718 | GENERATING SURROUND SOUND FIELD |
| WO/2005/043511 | AUDIO SIGNAL ENCODING OR DECODING |
| WO/2009/046223 | SPATIAL AUDIO ANALYSIS AND SYNTHESIS FOR BINAURAL REPRODUCTION AND FORMAT CONVERSION |
Inventors:
Pop, jens
Spencer, Claus-Christian
Melpirat, Celine
Muller, Tobias
Hoelich, Holger
Spencer, Claus-Christian
Melpirat, Celine
Muller, Tobias
Hoelich, Holger
Application Number:
JP2022572359A
Publication Date:
February 20, 2024
Filing Date:
May 20, 2021
Export Citation:
Assignee:
Dolby International Arb
International Classes:
G10L19/008; G10L19/00; H04S7/00
Domestic Patent References:
| JP2016525714A | ||||
| JP2009147702A |
Foreign References:
| WO2016203994A1 | ||||
| US20160163321 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki