Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for realizing hearing change feedback using digital technology

A digital technology and auditory technology, applied in devices for correcting stuttering, other nursing equipment, etc., can solve problems such as unsatisfactory delay time, non-pronunciation of the first word, delay time limit, etc., to achieve precise control of stuttering auxiliary treatment, rapid recovery structure, the effect of a small number of components

Active Publication Date: 2006-07-19
MICRO DSP TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the delay time is limited by the read and write cycle of the memory, and it cannot meet the short and precise delay time requirements of DAF research in recent years.
Especially ineffective for those prone to silent stuttering behavior and difficulty in vocalizing the first word

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
  • Method for realizing hearing change feedback using digital technology
  • Method for realizing hearing change feedback using digital technology
  • Method for realizing hearing change feedback using digital technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Such as figure 1 Shown: the signal flow of the present invention is divided into following stages:

[0030] Input signal: sensors such as microphones convert analog signals into level signals, analog / digital converters A / D convert level signals into digital signals, that is, mixed noise voice signals, and then use Fourier transform, time / frequency domain converter Transform digital signals from time-domain signals to frequency-domain signals;

[0031] Signal identification and optimization: perform algorithm noise reduction on the converted frequency domain signal, calculate the signal / noise ratio factor of each band of the frequency domain signal, and determine the attenuation of the mixed noise signal and the gain of the voice signal in each frequency band, attenuation The noise signal of each frequency band is boosted by the voice signal of each frequency band.

[0032] Signal reconstruction: the frequency domain signal is subjected to auditory delay feedback proce...

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 discloses an acoustic feedback changing realization method of digital technique, which comprises the following steps: transmitting one's own language signal into level signal through sensor; transmitting the level signal into digital signal through A-to-D; dividing the digital signal into frequency domain signal through Fuliye transformation; delaying the frequency domain; changing the frequency; recombining the time domain data through Fuliye transformation; outputting with the sheltering signal compositely according to certain condition; transmitting the output digital signal into level signal through D-to-A transformation; transmitting into the acoustic signal for user. The invention displays obvious effect, which is fit for wide domain.

Description

technical field [0001] The invention relates to a speech signal processing method, specifically a method for realizing auditory change feedback with digital technology, which is suitable for stuttering correction or auxiliary treatment. Background technique [0002] Altered auditory feedback (hereinafter referred to as AAF) refers to the way a speaker hears his own altered voice, and it is a speech feedback method that utilizes auditory senses. AAF can have three modes: Delayed Auditory Feedback (hereinafter referred to as DAF), Frequency Altered Feedback (hereinafter referred to as FAF) and masking auditory feedback (hereinafter referred to as MAF). Stuttering patients use auditory feedback to speak, which can improve the fluency of the speaker and reduce the symptoms of stuttering. DAF and FAF are ideal methods of stuttering correction equipment, and MAF is also useful for some patients with stuttering, especially for those who are prone to silent stuttering behavior. Au...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/58
Inventor 蒋一宁夏世雄蒋涛付晓毅蔺君刚
Owner MICRO DSP TECH