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Intelligibility of VCV segments excised from connected speech
The Journal of the Acoustical Society of America
|September 1, 1983
Summary
Speech intelligibility of consonants changes with sound degradation. Consonant confusions varied based on speech processing, noise, and filtering, impacting auditory perception.
Area of Science:
- Phonetics
- Speech Perception
- Acoustic Phonetics
Background:
- Understanding consonant perception is crucial for speech intelligibility.
- Intervocalic consonants in connected speech present unique perceptual challenges compared to citation forms.
Purpose of the Study:
- To investigate confusions between intervocalic consonants under various speech degradation conditions.
- To compare error patterns of intervocalic consonants with syllable-initial consonants.
Main Methods:
- Examined consonant pairs from connected speech.
- Applied digital voice processing, noise, and bandpass limiting for speech degradation.
- Analyzed error types: voicing, nasality, and place of articulation.
Main Results:
- Error distributions for intervocalic consonants differed from syllable-initial consonants.
- Consonants from word-initial positions performed better without degradation.
- Medial and final segments were more robust to mild degradations than initial segments.
Conclusions:
- Speech degradation significantly alters intervocalic consonant perception.
- The position of a consonant within a word influences its robustness to auditory noise and distortion.