BIT ALLOCATION METHOD AND APPARATUS FOR AUDIO OBJECT

WIPO Patent Application WO/2022/156556

A1

Disclosed are a bit allocation method and apparatus for an audio object, which relate to the technical field of audio encoding and decoding, and is conducive to improving the overall quality of a reconstructed audio object and encoding efficiency. The method comprises: pre-rendering a plurality of audio objects to be pre-rendered in an audio frame, so as to obtain a plurality of pre-rendered audio objects; acquiring respective perceptual importance parameter values of the plurality of pre-rendered audio objects, wherein the perceptual importance parameter value of the current pre-rendered audio object is used for indicating a perceptual importance degree of the current pre-rendered audio object in the plurality of pre-rendered audio objects; on the basis of the respective perceptual importance parameter values of the plurality of pre-rendered audio objects, acquiring a bit allocation parameter value of the current audio object to be pre-rendered; and on the basis of the bit allocation parameter value of the current audio object to be pre-rendered and the total number of bits to be allocated corresponding to the plurality of audio objects to be pre-rendered, determining the target number of bits allocated to the current audio object to be pre-rendered. The method can be applied to a stereo encoder or a multichannel encoder.

MENG XIANBO (CN)
WANG BIN (CN)
WANG ZHE (CN)
XIA BINGYIN (CN)

PCT/CN2022/071148

July 28, 2022

January 10, 2022

Click for automatic bibliography generation  

HUAWEI TECH CO LTD (CN)

G10L19/008; G10L19/002; G10L19/02

CN101853663A	2010-10-06
CN105637582A	2016-06-01
CN101562015A	2009-10-21
US5268685A	1993-12-07
CN202110083715A	2021-01-21

BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: SCREEN BRIGHTNESS ADJUSTMENT METHOD, APPARATUS, AND TERMINAL DEVICE

Next Patent: IMAGE DISPLAY METHOD AND APPARATUS, DEVICE, AND MEDIUM