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Perception of Medial Consonants by Preschoolers With and Without Speech Sound Disorders
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In: J Speech Lang Hear Res (2020)
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Perception of Medial Consonants by Children With and Without Speech and Language Disorders: A Preliminary Study
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In: Am J Speech Lang Pathol (2020)
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Speech perception in simulated electric hearing exploits information-bearing acoustic change
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Efficient Coding and Statistically Optimal Weighting of Covariance among Acoustic Attributes in Novel Sounds
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Real-Time Contrast Enhancement to Improve Speech Recognition.
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In: Department of Speech, Language, and Hearing Sciences Faculty Publications (2011)
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Real-Time Contrast Enhancement to Improve Speech Recognition
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Cochlea-scaled spectral entropy predicts rate-invariant intelligibility of temporally distorted sentences1
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Cochlea-scaled entropy, not consonants, vowels, or time, best predicts speech intelligibility
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Abstract:
Speech sounds are traditionally divided into consonants and vowels. When only vowels or only consonants are replaced by noise, listeners are more accurate understanding sentences in which consonants are replaced but vowels remain. From such data, vowels have been suggested to be more important for understanding sentences; however, such conclusions are mitigated by the fact that replaced consonant segments were roughly one-third shorter than vowels. We report two experiments that demonstrate listener performance to be better predicted by simple psychoacoustic measures of cochlea-scaled spectral change across time. First, listeners identified sentences in which portions of consonants (C), vowels (V), CV transitions, or VC transitions were replaced by noise. Relative intelligibility was not well accounted for on the basis of Cs, Vs, or their transitions. In a second experiment, distinctions between Cs and Vs were abandoned. Instead, portions of sentences were replaced on the basis of cochlea-scaled spectral entropy (CSE). Sentence segments having relatively high, medium, or low entropy were replaced with noise. Intelligibility decreased linearly as the amount of replaced CSE increased. Duration of signal replaced and proportion of consonants/vowels replaced fail to account for listener data. CSE corresponds closely with the linguistic construct of sonority (or vowel-likeness) that is useful for describing phonological systematicity, especially syllable composition. Results challenge traditional distinctions between consonants and vowels. Speech intelligibility is better predicted by nonlinguistic sensory measures of uncertainty (potential information) than by orthodox physical acoustic measures or linguistic constructs.
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Keyword:
Biological Sciences
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901476 https://doi.org/10.1073/pnas.0913625107 http://www.ncbi.nlm.nih.gov/pubmed/20566842
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Predicting echo thresholds from speech onset characteristics
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Contributions of Nonhuman Animal Models to Understanding Human Speech Perception ...
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Contributions of Nonhuman Animal Models to Understanding Human Speech Perception ...
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Categorical Perception of Speech by Children With Specific Language Impairments
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