Title:
MASKING METHOD AND DEVICE FOR MOTOR HIGH-FREQUENCY NOISE
Document Type and Number:
WIPO Patent Application WO/2018/153243
Kind Code:
A1
Abstract:
The present application provides a masking method and device for motor high-frequency noises. The method comprises: generating a masking curvilinear function on the basis of a high-frequency noise signal generated by a motor; collecting, in real time, the high-frequency noise signal generated by the motor; generating a masking sound signal according to the spectrum data of the collected high-frequency noise signal and the masking curvilinear function, selecting a background sound from a background sound database according to the spectrum data of the collected high-frequency noise signal, and processing the selected background sound according to the masking curvilinear function; and synthesizing the generated masking sound signal and the selected background sound and outputting the synthesized sound. The masking method for motor high-frequency noises can mask the high-frequency noise signal generated by the motor, so that the high-frequency noise signal is produced in a background sound more acceptable for people, thus facilitating improvement of use experience of people for motor related products.
Inventors:
ZHAO YONGJI (CN)
SUN YAXUAN (CN)
LIU WENZHAN (CN)
SUN YAXUAN (CN)
LIU WENZHAN (CN)
Application Number:
PCT/CN2018/075378
Publication Date:
August 30, 2018
Filing Date:
February 06, 2018
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
G10K11/175
Foreign References:
CN103344323A | 2013-10-09 | |||
US20020196951A1 | 2002-12-26 | |||
US20040042624A1 | 2004-03-04 | |||
CN102097100A | 2011-06-15 | |||
CN102543060A | 2012-07-04 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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