Temporal Resolution Needed for Auditory Communication: Measurement With Mosaic Speech

Autor: Yoshitaka Nakajima, Mizuki Matsuda, Kazuo Ueda, Gerard B. Remijn
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Frontiers in Human Neuroscience, Vol 12 (2018)
Druh dokumentu: article
ISSN: 1662-5161
DOI: 10.3389/fnhum.2018.00149
Popis: Temporal resolution needed for Japanese speech communication was measured. A new experimental paradigm that can reflect the spectro-temporal resolution necessary for healthy listeners to perceive speech is introduced. As a first step, we report listeners' intelligibility scores of Japanese speech with a systematically degraded temporal resolution, so-called “mosaic speech”: speech mosaicized in the coordinates of time and frequency. The results of two experiments show that mosaic speech cut into short static segments was almost perfectly intelligible with a temporal resolution of 40 ms or finer. Intelligibility dropped for a temporal resolution of 80 ms, but was still around 50%-correct level. The data are in line with previous results showing that speech signals separated into short temporal segments of
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