Voice enhancing method

A voice enhancement and real-time voice technology, applied in voice analysis, instruments, etc., can solve the problems of poor microphone directivity and poor residual noise attenuation processing ability

Active Publication Date: 2010-11-24
AAC TECH PTE LTD
View PDF5 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the speech enhancement method in the related art, the directivity of the microphone is not strong, the signal outp

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Voice enhancing method
  • Voice enhancing method
  • Voice enhancing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] like figure 1 , as shown in 2, the main idea of ​​the present invention is to form a real-time speech enhancement system by integrating the speech enhancement algorithm in a dedicated chip, and by designing the interface and data transmission between the chip and the corresponding microphone. The voice signal is collected by the microphone and directly processed by the voice enhancement algorithm in the chip to obtain an enhanced signal, which is output for secondary use.

[0040] The basic steps of speech enhancement algorithm among the present invention are as follows:

[0041] 1. Use a microphone to receive external signals;

[0042] 2. The signal is sent to the chip, and the analog-to-digital conversion is completed first (if a digital microphone is used, this step can be omitted);

[0043] 3. Perform voice enhancement processing on the ob...

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

PUM

No PUM Login to view more

Abstract

The invention provides a voice enhancing method, which comprises the following steps of: providing a microphone and a voice signal processing chip integrated in the microphone, wherein the microphone is used for receiving external signals, and the voice signal processing chip is used for performing voice enhancing processing; and transforming frequency domain signals obtained by processing noise voice signals to a time domain, and performing deemphasis processing to obtain output signals. The method can realize the microphone directivity, and enhances the capacity of processing the voice signals.

Description

【Technical field】 [0001] The invention provides a voice enhancement method, in particular to a microphone-based voice enhancement method. 【Background technique】 [0002] Due to the existence of a large amount of environmental noise, the signal-to-noise ratio of the voice signal collected by the microphone is generally not high enough, so it is necessary to improve the signal-to-noise ratio of the input voice through a voice enhancement method. The existing voice enhancement algorithms are mostly used as additional functions of the product, and the algorithms are implemented as a module integrated in the chip, or implemented in pure software. There is no product that directly implements the speech enhancement algorithm as a chip, integrated in the microphone, and performs noise reduction processing. [0003] In the speech enhancement method in the related art, the directivity of the microphone is not strong, the signal output by the transmitter is not a noise-reduced signal,...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G10L21/02G10L21/0232
Inventor 叶利剑
Owner AAC TECH PTE LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap