Room and head coloration can induce obligatory stream segregation

Marion David, Mathieu Lavandier, Nicolas Grimault

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Multiple sound reflections from room materials and a listener's head induce slight spectral modifications of sounds. This coloration depends on the listener and source positions, and on the room itself. This study investigated whether coloration could help segregate competing sources. Obligatory streaming was evaluated for diotic speech-shaped noises using a rhythmic discrimination task. Thresholds for detecting anisochrony were always significantly higher when stimuli differed in spectrum. The tested differences corresponded to three spatial configurations involving different levels of head and room coloration. These results suggest that, despite the generally deleterious effects of reverberation on speech intelligibility, coloration could favor source segregation.

Original languageEnglish (US)
Pages (from-to)5-8
Number of pages4
JournalJournal of the Acoustical Society of America
Volume136
Issue number1
DOIs
StatePublished - Jul 2014

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