定常広帯域騒音下における連続音声と単音節音声の主観的了解度の評定

概要

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This study concerns subjective intelligibility rated with method of magnitude estimation. Rating tests were conducted for speech sound and monosyllable sound in steady broad-band noise at various levels. Relation of subjective intelligibility ratings between speech sound and monosyllable sound was investigated in relation to S/N ratios. Correlation of subjective intelligibility ratings to S/N ratios and standard errors of estimate were also calculated. As the results, subjective intellibility ratings correlated to S/N ratios in higher than 0. 91 for both sounds and standard errors of estimate were 3. 2-4. 2 dB(PSE). Subjective intelligibility of speech sound could be estimated at 3. 3 dB(PSE) lower than subjective intelligibility of monosyllable sound which could be predicted by articulation index.
社団法人日本音響学会の論文
1984-10-01