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Formant-frequency variation and its effects on across-formant grouping in speech perception
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Auditory-based processing of communication sounds
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Walters, Thomas C.. - : University of Cambridge, 2011. : Department of Physiology, Development and Neuroscience, 2011
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How the Human Brain Recognizes Speech in the Context of Changing Speakers
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Reviewing the definition of timbre as it pertains to the perception of speech and musical sounds
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Auditory speech processing for scale-shift covariance and its evaluation in automatic speech recognition
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Location and acoustic scale cues in concurrent speech recognition1
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A Statistical, formant-pattern model for segregating vowel type and vocal-tract length in developmental formant data
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The interaction of vocal characteristics and audibility in the recognition of concurrent syllablesa)
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Abstract:
In concurrent-speech recognition, performance is enhanced when either the glottal pulse rate (GPR) or the vocal tract length (VTL) of the target speaker differs from that of the distracter, but relatively little is known about the trading relationship between the two variables, or how they interact with other cues such as signal-to-noise ratio (SNR). This paper presents a study in which listeners were asked to identify a target syllable in the presence of a distracter syllable, with carefully matched temporal envelopes. The syllables varied in GPR and VTL over a large range, and they were presented at different SNRs. The results showed that performance is particularly sensitive to the combination of GPR and VTL when the SNR is 0 dB. Equal-performance contours showed that when there are no other cues, a two-semitone difference in GPR produced the same advantage in performance as a 20% difference in VTL. This corresponds to a trading relationship between GPR and VTL of 1.6. The results illustrate that the auditory system can use any combination of differences in GPR, VTL, and SNR to segregate competing speech signals.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2833416 http://www.ncbi.nlm.nih.gov/pubmed/19206886 https://doi.org/10.1121/1.3050321
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Effects of voicing in the recognition of concurrent syllables (L)a)
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Discrimination of speaker sex and size when glottal-pulse rate and vocal-tract length are controlleda)
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Functional imaging of the auditory processing applied to speech sounds
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Speech Segregation Using an Auditory Vocoder With Event-Synchronous Enhancements
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Perception of acoustic scale and size in musical instrument sounds
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The processing and perception of size information in speech soundsa)
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The interaction of glottal-pulse rate and vocal-tract length in judgements of speaker size, sex, and agea)
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