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A real-time processing method for cochlear implant audio

A real-time processing, cochlear implant technology, applied in the field of signal processing, can solve problems such as non-real-time

Active Publication Date: 2022-06-17
ZHEJIANG NUROTRON BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of its memory storage capacity, it can only observe signals of limited length, and it is also not real-time

Method used

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  • A real-time processing method for cochlear implant audio
  • A real-time processing method for cochlear implant audio
  • A real-time processing method for cochlear implant audio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see figure 1 , shown is a cochlear implant audio real-time processing system according to Embodiment 1 of the present invention, including a sound signal acquisition unit 10, a DSP processing unit 20, a DSP signal output unit 30, a DSP-to-PC data conversion unit 40, and a PC-side signal real-time acquisition unit Unit 50, PC-side real-time processing unit 60 and PC-side real-time debugging unit 70, wherein,

[0033] The sound signal collection unit 10 is connected with the DSP processing unit 20, and includes a collection module and an analog-to-digital conversion module. After the collection module collects external sounds, the analog-to-digital conversion module outputs digital signals;

[0034] The DSP processing unit 20 is connected with the DSP signal output unit 30, and at least includes a fast Fourier transform module, a frequency division processing module and an envelope extraction module, and buffers the processed signal to the DSP signal output unit 30, and t...

Embodiment 2

[0038] On the basis of Example 1, see figure 2 , shows a cochlear implant audio real-time processing system according to Embodiment 2 of the present invention, and further includes a DSP demonstration unit 80 , which is connected to the DSP signal output unit 30 to demonstrate the sound signal buffered in the DSP signal output unit 30 .

[0039] It also includes a real-time presentation unit 90 on the PC side, which is connected to the real-time processing unit 60 on the PC side, and synchronously demonstrates the result of the real-time processing or the intermediate process of the processing.

[0040] In a specific embodiment, the PC-side signal real-time acquisition unit 50 includes a USB module, a buffer module, and a PC frame acquisition module that are connected in sequence. The USB module puts the transmitted parallel data stream into the buffer module, and the data in the buffer module is composed of Queue, the setting of queue length changes the buffer capacity of th...

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Abstract

The invention discloses a cochlear implant audio real-time processing system and method, wherein the system includes a sound signal acquisition unit, a DSP processing unit, a DSP signal output unit, a DSP-to-PC data conversion unit, a PC terminal signal real-time acquisition unit, and a PC terminal real-time processing unit. unit and the PC end real-time debugging unit, the sound signal acquisition unit is connected with the DSP processing unit, including an acquisition module and an analog-to-digital conversion module, after the acquisition module collects the sound of the outside world, the digital signal is output through the analog-to-digital conversion module; DSP processing The unit is connected with the DSP signal output unit, and at least includes a fast Fourier transform module, a frequency division processing module and an envelope extraction module, and caches the processed signal to the DSP signal output unit, and the DSP signal output unit is connected in serial I2S format for output. The invention can output, debug and demonstrate the processing result and process of DSP in real time.

Description

technical field [0001] The invention belongs to the field of signal processing, and particularly relates to a real-time processing method for cochlear artificial audio. Background technique [0002] Cochlear implants are mainly hearing aids that help patients with severe and profound deafness regain their hearing, which consists of an external machine speech processor and an internal implant. The speech processor collects external speech signals through a microphone, and then converts the sound signals into pulse signals of various frequency bands through sound preprocessing and sound coding strategies, and finally transmits the encoded signals through radio frequency; the implanted decoding chip collects After receiving the radio frequency signal, through the electrode array implanted in the cochlea, the outer hair cells of the cochlea are bypassed and the auditory nerve is directly stimulated, so that the patient can regain hearing. [0003] In the signal processing syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R25/00
CPCH04R25/505H04R2225/43
Inventor 王宁远田春李方波孙晓安黄穗李晓波
Owner ZHEJIANG NUROTRON BIOTECH