Intelligibility of chimeric locally time-reversed speech

Ikuo Matsuo; Kazuo Ueda; Yoshitaka Nakajima

doi:10.1121/10.0001414

Intelligibility of chimeric locally time-reversed speech

Ikuo Matsuo, Kazuo Ueda, Yoshitaka Nakajima

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The intelligibility of chimeric locally time-reversed speech was investigated. Both (1) the boundary frequency between the temporally degraded band and the non-degraded band and (2) the segment duration were varied. Japanese mora accuracy decreased if the width of the degraded band or the segment duration increased. Nevertheless, the chimeric stimuli were more intelligible than the locally time-reversed controls. The results imply that the auditory system can use both temporally degraded speech information and undamaged speech information over different frequency regions in the processing of the speech signal, if the amplitude envelope in the frequency range of 840-1600 Hz was preserved.

Original language	English
Pages (from-to)	EL523-EL528
Journal	Journal of the Acoustical Society of America
Volume	147
Issue number	6
DOIs	https://doi.org/10.1121/10.0001414
Publication status	Published - Jun 1 2020

All Science Journal Classification (ASJC) codes

Experimental and Cognitive Psychology
Linguistics and Language
Acoustics and Ultrasonics

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10.1121/10.0001414

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abstract = "The intelligibility of chimeric locally time-reversed speech was investigated. Both (1) the boundary frequency between the temporally degraded band and the non-degraded band and (2) the segment duration were varied. Japanese mora accuracy decreased if the width of the degraded band or the segment duration increased. Nevertheless, the chimeric stimuli were more intelligible than the locally time-reversed controls. The results imply that the auditory system can use both temporally degraded speech information and undamaged speech information over different frequency regions in the processing of the speech signal, if the amplitude envelope in the frequency range of 840-1600 Hz was preserved.",

author = "Ikuo Matsuo and Kazuo Ueda and Yoshitaka Nakajima",

note = "Funding Information: The authors would like to thank Masumi Mikami and Eri Kanno for running the experiment. This work is supported by JSPS KAKENHI Grants Nos. 25242002, 17H06197, 17K18705, and 19H00630. Publisher Copyright: {\textcopyright} 2020 Acoustical Society of America.",

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AU - Matsuo, Ikuo

AU - Ueda, Kazuo

AU - Nakajima, Yoshitaka

N1 - Funding Information: The authors would like to thank Masumi Mikami and Eri Kanno for running the experiment. This work is supported by JSPS KAKENHI Grants Nos. 25242002, 17H06197, 17K18705, and 19H00630. Publisher Copyright: © 2020 Acoustical Society of America.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - The intelligibility of chimeric locally time-reversed speech was investigated. Both (1) the boundary frequency between the temporally degraded band and the non-degraded band and (2) the segment duration were varied. Japanese mora accuracy decreased if the width of the degraded band or the segment duration increased. Nevertheless, the chimeric stimuli were more intelligible than the locally time-reversed controls. The results imply that the auditory system can use both temporally degraded speech information and undamaged speech information over different frequency regions in the processing of the speech signal, if the amplitude envelope in the frequency range of 840-1600 Hz was preserved.

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Intelligibility of chimeric locally time-reversed speech

Abstract

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