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http://hdl.handle.net/10119/15772
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| 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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| 2920.pdf | | 1370Kb | Adobe PDF | View/Open |
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