A fully analog low-power wavelet-based Hearing Aid Front-end

A fully analog low-power wavelet-based Hearing Aid Front-end

This paper presents a new low-power Hearing Aid Front-end based on an analog wavelet transform signal processing. The system consists of an analog wavelet filter bank and an Automatic Gain Control (AGC), with a new topology for the decision logic and a new circuit design for the Programable Gain Amp...

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Hauptverfasser: Medeiros, Jose E. G., Chrisostomo, Lucas A. P., Meira, Gabriela, Toledo, Yuri C. R., Pimenta, Matheus, Haddad, Sandro A. P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Approximation methods
Auditory system
Electronics packaging
Gain control
Signal to noise ratio
Wavelet transforms
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Beschreibung
Zusammenfassung:This paper presents a new low-power Hearing Aid Front-end based on an analog wavelet transform signal processing. The system consists of an analog wavelet filter bank and an Automatic Gain Control (AGC), with a new topology for the decision logic and a new circuit design for the Programable Gain Amplifier (PGA). From simulation results, using a 0.18um CMOS technology, the proposed circuit shows very good performance with respect to Signal-to-Noise Ratio (SNR) and loudness behavior in an ultra low-power environment.
ISSN:2163-4025
2766-4465
DOI:10.1109/BioCAS.2013.6679684