Title:
符号化／復号化方法、装置及びシステム
Document Type and Number:
Japanese Patent JP6496328
Kind Code:
B2
Abstract:
Embodiments of the present invention provide a coding/decoding method, apparatus, and system. According to the coding method, de-emphasis processing is performed on a full band signal by using a de-emphasis parameter determined according to a characteristic factor of an input audio signal, and then the full band signal is coded and sent to a decoder, so that the decoder performs corresponding de-emphasis decoding processing on the full band signal according to the characteristic factor of the input audio signal and restores the input audio signal. This resolves a prior-art problem that an audio signal restored by a decoder is apt to have signal distortion, and implements adaptive de-emphasis processing on the full band signal according to the characteristic factor of the audio signal to enhance coding performance, so that the input audio signal restored by the decoder has relatively high fidelity and is closer to an original signal.
Inventors:
King guest
Liu Sawa Shin
Seedling
Liu Sawa Shin
Seedling
Application Number:
JP2016574888A
Publication Date:
April 03, 2019
Filing Date:
March 20, 2015
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
G10L19/02; G10L21/0388
Domestic Patent References:
| JP2008224902A |
Foreign References:
| WO2013066238A2 | ||||
| CN103928031A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki
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