Title:
VOICE DENOISING METHOD AND APPARATUS, COMPUTING DEVICE AND COMPUTER READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/125376
Kind Code:
A1
Abstract:
A voice denoising method and apparatus. The method comprises: acquiring a noise-bearing voice signal, the noise-bearing voice signal comprising a pure voice signal and a noise signal (110); estimating a posterior signal-to-noise ratio and a priori signal-to-noise ratio of the noise-bearing voice signal (120); determining a voice/noise likelihood ratio in a Bark domain on the basis of the estimated posterior signal-to-noise ratio and the estimated priori signal-to-noise ratio (130); estimating a priori voice presence probability on the basis of the determined voice/noise likelihood ratio (140); determining a gain on the basis of the estimated posterior signal-to-noise ratio, the estimated priori signal-to-noise ratio and the estimated priori voice presence probability, the gain being an estimated frequency domain transfer function for transforming the noise-bearing voice signal into a pure voice signal (150); and deriving a pure voice signal estimate from the noise-bearing voice signal on the basis of the gain (160).
Inventors:
JI XUAN (CN)
YU MENG (CN)
YU MENG (CN)
Application Number:
PCT/CN2019/121953
Publication Date:
June 25, 2020
Filing Date:
November 29, 2019
Export Citation:
Assignee:
TENCENT TECH SHENZHEN CO LTD (CN)
International Classes:
G10L21/0216
Foreign References:
| CN110164467A | 2019-08-23 | |||
| CN103650040A | 2014-03-19 | |||
| CN108831499A | 2018-11-16 | |||
| CN103730124A | 2014-04-16 | |||
| US20160042746A1 | 2016-02-11 |
Other References:
See also references of EP 3828885A4
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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