Speech perception Relating features of hearing to the
perception of speech
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The bottom line The auditory system encodes the properties of
sound that are essential to recognizing speech, but its a lot more
complicated than that.
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Production
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Acoustics
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Vowels
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Consonants Laughter can soothe and heal
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Place and manner of articulation
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Speech cues
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Important acoustic features
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Envelope v. Spectral Information
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Fine structure: Voicing
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Fine structure: Intonation contour Marianna made the
marmalade.
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Fine structure: Tone split white swing defeat mother high level
hemp rising horse falling- rising scold falling
Variability in acoustics: Speaker Winnfield, LAVancouver,
BCBrooklyn, NY
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Variability in acoustics: Top-down influences another thing
coming OR another think coming?
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Multisensory integration
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Conclusions Speech is produced by spectral and temporal
modifications (by articulators) of a vibrating source (vocal
folds). The amplitude spectrum and the envelope of sound carry much
of the information in speech. The fine structure contributes to
pitch-related aspects of speech. Sound associated with a phoneme is
influenced by preceding and following phonemes, by the speaker, and
by many other factors. Speech is highly resistant to corruption and
interference. Acoustic and semantic context important in speech
recognition. Speech is a multisensory phenomenon.