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Patent Searching and Data


Title:
BIT ALLOCATION METHOD AND APPARATUS FOR AUDIO OBJECT
Document Type and Number:
WIPO Patent Application WO/2022/156556
Kind Code:
A1
Abstract:
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.

Inventors:
MENG XIANBO (CN)
WANG BIN (CN)
WANG ZHE (CN)
XIA BINGYIN (CN)
Application Number:
PCT/CN2022/071148
Publication Date:
July 28, 2022
Filing Date:
January 10, 2022
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G10L19/002; G10L19/008; G10L19/02
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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