A new method of multichannel loudness compensation for hearing aids

Wang, Qingyun; Zhao, Li; Qiao, Junfei; Zou, Cairong

doi:10.1109/apccas.2008.4746068

Cited by 1 publication

(5 citation statements)

References 10 publications

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“…Finally, even though existing methods can match the acoustic region corresponding to the normal auditory dynamic range into the hearing impaired individual's residual acoustic dynamic range [5][6][7][8][9][10], patients react distinctly to compensated sound in reality. Some thinks it louder and others feel weaker than expected.…”

Section: Proposed Methods A) Problems Caused By Traditional Methodsmentioning

confidence: 99%

“…As proposed in existing methods [6][7][8][9][10] , in each sound band, a general frequency specific formula for defining the input/output function of WDRC is almost depicted as the following three states: A, B and C.…”

Section: B) I/o Formula Of Linear Compressionmentioning

confidence: 99%

“…In conventional approaches [5][6][7][8][9][10], the values of I1, I2, O1 and O2 are generally set as follows.…”

Section: C) Matching Psychoacoustic Parameters To the I/o Formulamentioning

confidence: 99%

“…This algorithm divides the signal into several bands according to frequency and subsequently carries on compensation in each band [2] [4]. It matches the acoustic region corresponding to the normal dynamic auditory range into hearing impaired individuals' residual acoustic dynamic range [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Serious speech abnormal phenomenon can be often caused by the SPL compensation in high frequency. Plosive or sharp phenomenon (the part marked by green in Fig.3) influenced the voice quality seriously.Finally, even though existing methods can match the acoustic region corresponding to the normal auditory dynamic range into the hearing impaired individual's residual acoustic dynamic range[5][6][7][8][9][10], patients react distinctly to compensated sound in reality. Some thinks it louder and others feel weaker than expected.…”

mentioning

confidence: 99%

See 4 more Smart Citations

A Method of Wide Dynamic Range Compression Based on Curve Compression Applying on Hearing Aids

Luo

Guo

Zhao

et al. 2015

AMM

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Recently, there is a growing trend to investigate wide dynamic range compression technique with the development of hearing aids. However, existing methods used to enhance expected speech as well as the background noise and classical linear compression can’t achieve the requirements of hearing impaired individuals’ reaction to the loudness compensation flexibly. To cope with the problems, this paper proposes a new approach to suppress the enhanced background noise and to dismiss abnormal sound caused by severe jittering from high frequency signal. What’s more, a scheme of curve compression is introduced to improve the loudness amplifying flexibility instead of conventional linear compression. Both the theoretical simulation and testing on cellphone hearing aid APP based on android system prove the proposed method can improve the performance of speech enhancement and provide more choices to strength sound with the curve compression ratio.

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