We present a feature extraction method that evaluates the audio quality of push-button sounds based on wavelet transforms. Using a continuous wavelet transform, push-button sounds are represented in the time-frequency plane. For each sound, features identifying sound characteristics in terms of sound pressure and reverberation are compactly represented with triangular biorthogonal wavelets. These wavelets belong to a two-dimensional nonseparable set of functions that enable a multiscale signal representation. Together with an auditory impression of the sounds extracted by the semantical differential method, a preliminary experiment is then performed to evaluate automated recognition of push-button sounds using wavelet analysis.

Authors: Fujinoki, Kensuke; Murakoshi, Kodai; Ishimitsu, Shunsuke
Affiliations: Hiroshima City University, Hiroshima, Japan; Oshima National College of Maritime Technology, Yamaguchi, Japan(See document for exact affiliation information.)
AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio (March 2012)
Paper Number: 2-1
Publication Date: March 1, 2012
Subject: Representation of Audio

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