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Normal-hearing subjects' perception of speech through one-third octave bands
The Journal of Auditory Research
|October 1, 1977
Summary
This study examined how filtered speech affects consonant perception in normally-hearing individuals. Findings suggest that auditory filtering impacts consonant features similarly to hearing impairment.
Area of Science:
- Speech Perception
- Auditory Neuroscience
- Acoustic Phonetics
Background:
- Consonant perception relies on various phonetic features.
- Auditory filtering can alter speech signal clarity.
- Previous analysis indicated filtering affects place features more than manner or voicing.
Purpose of the Study:
- To investigate perceptual features of consonants in normally-hearing individuals under filtered auditory conditions.
- To conduct a-posteriori analysis of feature weights using INDSCAL.
- To compare findings with data from hearing-impaired subjects.
Main Methods:
- Normally-hearing subjects (Ss) responded to consonant-vowel stimuli.
- Stimuli were filtered through one-third-octave bands and a critical band.
- Data were analyzed using INDSCAL (Individual Differences Scaling).
Main Results:
- Perceptual features and their weights varied across different filter bands.
- Filtering significantly impacted place features of consonants.
- Manner and voicing features remained relatively unaffected by filtering.
Conclusions:
- Auditory filtering affects consonant perception in normally-hearing individuals.
- The impact of filtering on consonant features resembles patterns observed in hearing-impaired listeners.
- Findings contribute to understanding speech processing in altered auditory conditions.