کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
567091 876044 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Speech intelligibility for different spatial configurations of target speech and competing noise source in a horizontal and median plane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Speech intelligibility for different spatial configurations of target speech and competing noise source in a horizontal and median plane
چکیده انگلیسی


• We have confirmed the existence of spatial unmasking that markedly increases speech intelligibility.
• We have proved that the spatial unmasking is bigger for binaural than for monaural conditions.
• It has been shown that when speech source elevation is increased its intelligibility decreases.
• We have proved that Sentence Test is a sort of universal method for speech intelligibility analysis in variety of conditions.

The speech intelligibility for different configurations of a target signal (speech) and masker (babble noise) in a horizontal and a median plane was investigated. The sources were placed at the front, in the back or in the right hand side (at different angular configurations) of a dummy head. The speech signals were presented to listeners via headphones at different signal-to-noise ratios (SNR). Three different types of listening mode (binaural and monaural for the right or left ear) were tested. It was found that the binaural mode gave the lowest, i.e. ‘the best’, speech reception threshold (SRT) values compared to the other modes, except for the cases when both the target and masker were at the same position. With regard to the monaural modes, SRTs were generally worse than those for the binaural mode. The new data gathered for the median plane revealed that a change in elevation of the speech source had a small, but statistically significant, influence on speech intelligibility. It was found that when speech elevation was increased, speech intelligibility decreased.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Speech Communication - Volume 55, Issue 10, November–December 2013, Pages 1021–1032
نویسندگان
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