Method and device for enhancing voice signal

A voice signal and signal technology, applied in the field of communication, can solve the problems of insufficiency of voice signals, high complexity of the implementation process, and poor control of the reduction intensity.
CN102054482AInactive Publication Date: 2011-05-11CHINA MOBILE COMM GRP CO LTD
0 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA MOBILE COMM GRP CO LTD
Publication Date
2011-05-11
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention discloses a method and a device for enhancing a voice signal. The method comprises the steps of: obtaining a noising voice signal, and carrying out perception weighted filtering on the noising voice signal; converting the noising voice signal subjected to the perception weighted filtering into a frequency domain, carrying out spectrum subtraction and phase synthesis on the noising voice signal in the frequency domain, and converting the voice signal subjected to the spectrum subtraction and phase synthesis into a time domain; and carrying out inverse perception weighted filtering on the voice signal subjected to the spectrum subtraction and the phase synthesis to obtain an enhanced voice signal. Through using the invention, the noising voice signal is subjected to the perception weighted filtering, the interference of the noising voice signal to the noise is effectively eliminated, the enhanced voice signal is obtained and the human vision is met.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a method and device for enhancing voice signals. Background technique

[0002] With the development of 3G (3rd Generation, third generation mobile communication system), videophone services have been widely used. While realizing basic communication, the videophone service allows both parties in a call to observe the call scene where the other party is in, which enhances user experience. During a videophone call, in order for the camera to capture the real-time scene image of the caller, both callers need to keep a certain distance from the phone microphone during the call. Therefore, a large number of voice signals collected by the phone microphone are mixed Noise, the introduction of noise reduces the signal-to-noise ratio of the call signal and affects the call quality of the videophone.

[0003] In the prior art, in order to reduce the interference of noise to the call...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More