Effects of temporal smearing on temporal resolution, frequency selectivity, and speech intelligibility
| Autor: | Zezhang Hou, Chaslav V. Pavlovic |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Adult
Sound Spectrography Time Factors Speech perception Adolescent Acoustics and Ultrasonics Acoustics Speech recognition Perceptual Masking Speech Production Measurement Arts and Humanities (miscellaneous) Phonetics otorhinolaryngologic diseases medicine Humans Auditory system Mathematics Speech Intelligibility Filter (signal processing) Noise medicine.anatomical_structure Temporal resolution Mental Recall Speech Perception Female Algorithms |
| Zdroj: | The Journal of the Acoustical Society of America. 96:1325-1340 |
| ISSN: | 0001-4966 |
| Popis: | Envelopes of speech were smeared in 23 parallel frequency channels. The smeared speech was presented to normal‐hearing listeners, and the effects of different smearing magnitudes on speech intelligibility were measured by obtaining speech recognition scores. It was demonstrated theoretically and experimentally that the system consisting of the computer smearing and the auditory system had reduced temporal resolution but nearly normal frequency resolution. Speech intelligibility of the processed vowel–consonant nonsense syllables was tested for low‐ and high‐pass filter conditions. The overall speech recognition scores as well as the recognition scores of the consonants grouped according to articulatory features were analyzed. The results indicated that smearing with a narrow temporal window did not degrade speech. The larger equivalent rectangular durations (ERDs) of the resultant temporal window (RTW) of the combined system (temporal smearing plus auditory system) produced a small but significant reduction in speech intelligibility for the low‐pass filter condition. Scores for the RTWs≳16 ms were significantly different from the score for the 7.7‐ms RTW for the high‐pass filter condition, but this effect was small and did not differ across articulatory features. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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