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Title: Estimation of attack time constant for dynamic range compressors in hearing AIDS
Authors: Deepu, S.P.
Sumam, David S.
Ramesh, Kini, M.
Issue Date: 2016
Citation: International Conference on Digital Signal Processing, DSP, 2016, Vol.0, , pp.20-24
Abstract: Dynamic Range Compression (DRC) is a key component in all modern Hearing AIDS. Attack and Release time constants decide the speed with which the DRC should act to the incoming signal amplitude variation. So an accurate estimation of time constants gives a precise control over the DRC behavior. In this paper we examined various errors that occur in the output of the DRC while using conventional methods which affect attack and release time constants adversely. New methods are proposed for a better estimation of time constants in DRC. Since all the modifications are made in the estimation of attack time, there is no need to change the existing hardware for DRC. The proposed algorithm gives perfect output characteristics with zero error for test signals defined in ANSI S3.22 standards for hearing aid specifications. � 2016 IEEE.
Appears in Collections:2. Conference Papers

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