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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/15772

Title: Variation of Formant Amplitude and Frequencies in Vowel Spectrum uttered under Various Noisy Environments
Authors: Matsumoto, Shumpei
Akagi, Masato
Issue Date: 2019-03-06
Publisher: Research Institute of Signal Processing, Japan
Magazine name: 2019 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2019)
Start page: 252
End page: 255
Abstract: In this paper, we investigate how vowels in utterance vary in various noise environments, focusing on formant frequency and amplitude on the spectrum. Noises that covered the formants of each subjects was synthesized based on the uttered voices recorded in the without any noise. We analyzed using Praat and cepstrum analysis in order to investigate the difference between the formant frequency and amplitude when several types of noise are presented, comparing with the case without noise. As a result, when uttering vowels in noise environments, humans not only increase formant amplitudes of their own voices against noise, but also change their vocal tract shapes so that their own voices are not covered by noise depending on the pattern of noise.
Rights: Copyright (C) 2019 Research Institute of Signal Processing, Japan. Shumpei Matsumoto and Masato Akagi, 2019 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2019), 2019, 252-255.
URI: http://hdl.handle.net/10119/15772
Material Type: publisher
Appears in Collections:b11-1. 会議発表論文・発表資料 (Conference Papers)

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