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Temporal factors in cochlea-scaled entropy and intensity-based intelligibility predictions

By Vincent Aubanel, Martin Cooke, Chris Davis and Jeesun Kim

Abstract

International audienceCochlea-scaled entropy (CSE) was proposed as a signal-based metric for automatic detection of speech regions most important for intelligibility, but its proposed superiority over traditional linguistic and psychoacoustical characterisations was not subsequently confirmed. This paper shows that the CSE concept is closely related to intensity and as such captures similar speech regions. However, a slight but significant advantage of a CSE over an intensity-based characterisation was observed, associated with a time difference between the two metrics, suggesting that the CSE index may capture dynamical properties of the speech signal crucial for intelligibility

Topics: [SCCO.NEUR]Cognitive science/Neuroscience, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [SCCO.LING]Cognitive science/Linguistics
Publisher: 'Acoustical Society of America (ASA)'
Year: 2018
DOI identifier: 10.1121/1.5041468
OAI identifier: oai:HAL:hal-01811565v1
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