Reverberation limits the release from informational masking obtained in the harmonic and binaural domains
详细信息 查看全文
- 作者：Mickael L. D. Deroche ; John F. Culling…
- 关键词：Speech perception ; Psychoacoustics ; Perceptual categorization ; Perceptual identification
- 刊名：Attention, Perception, & Psychophysics
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：79
- 期：1
- 页码：363-379
- 全文大小：
- 刊物主题：Cognitive Psychology;
- 出版者：Springer US
- ISSN：1943-393X
- 卷排序：79
文摘
A difference in fundamental frequency (ΔF0) and a difference in spatial location (ΔSL) are two cues known to provide masking releases when multiple speakers talk at once in a room. We examined situations in which reverberation should have no effect on the mechanisms underlying the releases from energetic masking produced by these two cues. Speech reception thresholds using both unpredictable target sentences and the coordinate response measure followed a similar pattern. Both ΔF0s and ΔSLs provided masking releases in the presence of nonspeech maskers (matched in excitation pattern and temporal envelope to the speech maskers) that, as intended, were robust to reverberation. Larger masking releases were obtained for speech maskers, but critically, they were affected by reverberation. These results suggest that reverberation either limits the amount of informational masking that is present to begin with or affects its release by ΔF0s or ΔSLs.