Estimating speaker scale factors from vowels

Douglas J. Nelson; David C. Smith; Srinivasan Umesh; Leon Cohen

doi:10.1117/12.507416

13 November 2003 Estimating speaker scale factors from vowels

Douglas J. Nelson, David C. Smith, Srinivasan Umesh, Leon Cohen

Proceedings Volume 5207, Wavelets: Applications in Signal and Image Processing X; (2003) https://doi.org/10.1117/12.507416
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

In previous works, Umesh et al, demonstrated that phonetically similar vowels spoken by different individuals are related by a simple translation in a universal warped spectral representation. They experimentally derived this function and called it the “speech-scale”. We present further experimental evidence, based on a large data set, validating the speech-scale. We also estimate speaker-specific scale factors based on the speech-scale, and we present a vowel classification experiment, which demonstrates a significant performance improvement through a normalization based on the speech-scale. The results we present are based on formant estimates of vowels in a Western Michigan vowel database.

Citation Download Citation

Douglas J. Nelson, David C. Smith, Srinivasan Umesh, and Leon Cohen "Estimating speaker scale factors from vowels", Proc. SPIE 5207, Wavelets: Applications in Signal and Image Processing X, (13 November 2003); https://doi.org/10.1117/12.507416

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