| Differential contribution of envelope fluctuations across frequency to consonant identification in quiet. | |
| | |
MedLine Citation:
|
PMID: 18529195 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Two experiments investigated the effects of critical bandwidth and frequency region on the use of temporal envelope cues for speech. In both experiments, spectral details were reduced using vocoder processing. In experiment 1, consonant identification scores were measured in a condition for which the cutoff frequency of the envelope extractor was half the critical bandwidth (HCB) of the auditory filters centered on each analysis band. Results showed that performance is similar to those obtained in conditions for which the envelope cutoff was set to 160 Hz or above. Experiment 2 evaluated the impact of setting the cutoff frequency of the envelope extractor to values of 4, 8, and 16 Hz or to HCB in one or two contiguous bands for an eight-band vocoder. The cutoff was set to 16 Hz for all the other bands. Overall, consonant identification was not affected by removing envelope fluctuations above 4 Hz in the low- and high-frequency bands. In contrast, speech intelligibility decreased as the cutoff frequency was decreased in the midfrequency region from 16 to 4 Hz. The behavioral results were fairly consistent with a physical analysis of the stimuli, suggesting that clearly measurable envelope fluctuations cannot be attenuated without affecting speech intelligibility. |
| | |
Authors:
|
Frédéric Apoux; Sid P Bacon |
Related Documents
:
|
6699295 - Temporal gap resolution in narrow-band noises with center frequencies from 6000-14000 hz. 11150235 - Time-frequency analysis of the rt and rr variability to stratify hypertrophic cardiomyo... 21073935 - The effects of experimentally induced conductive hearing loss on spectral and temporal ... 3973235 - Detection of temporal gaps in bandlimited noise: effects of variations in bandwidth and... 11922125 - Is lightness induction a pictorial illusion? 22116885 - Climate change, keystone predation, and biodiversity loss. |
Publication Detail:
|
Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
|
Title: The Journal of the Acoustical Society of America Volume: 123 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 May |
Date Detail:
|
Created Date: 2008-06-05 Completed Date: 2008-08-20 Revised Date: 2010-09-21 |
Medline Journal Info:
|
Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
|
Languages: eng Pagination: 2792 Citation Subset: IM |
Affiliation:
|
Psychoacoustics Laboratory, Department of Speech and Hearing Science, Arizona State University, PO Box 870102, Tempe, Arizona 85287-0102, USA. apoux@psycho.univ-paris5.fr |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Auditory Perception* Cues Female Hearing / physiology* Humans Language Male Reference Values Sound Spectrography Speech* Speech Acoustics |
| Grant Support | |
ID/Acronym/Agency:
|
DC01376/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: What marks the beat of speech?
Next Document: A method to identify noise-robust perceptual features: application for consonant /t/.