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Conference Paper

The role of source and filter cues in emotion recognition in speech [Abstract]

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Sauter, D., Eisner, F., Rosen, S., & Scott, S. K. (2008). The role of source and filter cues in emotion recognition in speech [Abstract]. Journal of the Acoustical Society of America, 123, 3739-3740.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-6520-0
In the context of the source-filter theory of speech, it is well established that intelligibility is heavily reliant on information carried by the filter, that is, spectral cues (e.g., Faulkner et al., 2001; Shannon et al., 1995). However, the extraction of other types of information in the speech signal, such as emotion and identity, is less well understood. In this study we investigated the extent to which emotion recognition in speech depends on filterdependent cues, using a forced-choice emotion identification task at ten levels of noise-vocoding ranging between one and 32 channels. In addition, participants performed a speech intelligibility task with the same stimuli. Our results indicate that compared to speech intelligibility, emotion recognition relies less on spectral information and more on cues typically signaled by source variations, such as voice pitch, voice quality, and intensity. We suggest that, while the reliance on spectral dynamics is likely a unique aspect of human speech, greater phylogenetic continuity across species may be found in the communication of affect in vocalizations.