Hearing aid-oriented adaptive multi-channel loudness compensation method and hearing aid chip

A technology for loudness compensation and hearing aids, applied in hearing aids, hearing aid signal processing, electrical components, etc., can solve problems such as low voice quality and signal distortion, and achieve the effect of improving voice quality

Active Publication Date: 2022-03-25
湖南芯海聆半导体有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, WDRC technology makes the signal audible and also brings signal distortion. When the sound pressure level of the input signal is in a certain range, the voice quality of the signal after WDRC compensation is even lower than the result obtained by linear compensation.

Method used

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  • Hearing aid-oriented adaptive multi-channel loudness compensation method and hearing aid chip
  • Hearing aid-oriented adaptive multi-channel loudness compensation method and hearing aid chip
  • Hearing aid-oriented adaptive multi-channel loudness compensation method and hearing aid chip

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, in t...

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Abstract

The invention discloses an adaptive multi-channel loudness compensation method for hearing aids and a hearing aid chip, comprising: acquiring an input signal and performing AD conversion to obtain a digital signal, performing frame division to obtain a voice signal; performing filter transformation on all voice signals to obtain multiple Channel signals, and all channel signals are divided into the first channel combination and the second channel combination according to the audible range; each channel signal in the first channel combination is segmented linear gain; each channel in the second channel combination The signals are all subjected to non-linear gain; each channel signal in the first channel combination after gain compensation is synthesized with each channel signal in the second channel combination after gain compensation, and a voice signal after gain compensation is obtained and output. First, multi-channel decomposition is performed on the signal, and then the channels are divided into two groups. The channels with a smaller audible range are combined for piecewise linear gain, while the other channel is combined for non-linear gain, which effectively improves the voice quality after gain compensation. .

Description

technical field [0001] The invention relates to the technical field of speech signal processing, in particular to a hearing aid-oriented adaptive multi-channel loudness compensation method and a hearing aid chip. Background technique [0002] Hearing is one of the important senses of human beings, and it is an important part of communication and communication with the surroundings. Its importance is no less than that of vision. In recent years, due to global noise pollution and the aging of the world's population structure, the global population of hearing loss is increasing day by day. For centuries, scientists have been using various means to help hearing-impaired patients improve their hearing. Before there was a major medical breakthrough, wearing hearing aids was one of the most common ways to compensate for hearing loss. [0003] With the development of DSP technology, hearing aids developed from analog to digital in the 1990s, and the representative one is the expans...

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 熊志辉陈旺
Owner 湖南芯海聆半导体有限公司
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