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2002•Unpublished venueRequires access

Investigating cellular vibrations in the cochlea using the continuous wavelet transform and the short-time Fourier transform

Malvin Carl Teich, Conor Heneghan, Shyam M. Khanna, Mats Ulfendahl

Open publisher page 4 citations

Abstract

The Continuous Wavelet Transform (CWT) and the Short-Time Fourier Transform (STFT) are used to analyze the time course of cellular motion in the guinea-pig inner ear. The velocity responses of individual auditory cells (outer hair cells and Hensen's cells) to amplitude-modulated (AM) acoustical signals display characteristics typical of nonlinear systems. such as harmonic generation. Nonlinear effects are particularly pronounced at the highest stimulus levels, where half-harmonic, and sometimes quarter-harmonic, components are also seen. Both the CWT and the STFT are found to be useful in analyzing these velocity responses.>

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What this paper is about

The Continuous Wavelet Transform (CWT) and the Short-Time Fourier Transform (STFT) are used to analyze the time course of cellular motion in the guinea-pig inner ear. The velocity responses of individual auditory cells (outer hair cells and Hensen's cells) to amplitude-modulated (AM) acoustical signals display characteristics typical of nonlinear systems. such as harmonic generation. Nonlinear effects are particularly pronounced at the highest stimulus levels, where half-harmonic, and sometimes quarter-harmonic, components are also seen. Both the CWT and the STFT are found to be useful in analyzing these velocity responses.>

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OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The Continuous Wavelet Transform (CWT) and the Short-Time Fourier Transform (STFT) are used to analyze the time course of cellular motion in the guinea-pig inner ear. The velocity responses of individual auditory cells (outer hair cells and Hensen's cells) to amplitude-modulated (AM) acoustical signals display characteristics typical of nonlinear systems. such as harmonic generation. Nonlinear effects are particularly pronounced at the highest stimulus levels, where half-harmonic, and sometimes quarter-harmonic, components are also seen. Both the CWT and the STFT are found to be useful in analyzing these velocity responses.>

Key concepts: Short-time Fourier transform, Fourier transform, Harmonic wavelet transform, Constant Q transform, Acoustics, Speech recognition, Continuous wavelet transform, Wavelet transform

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