The effect of spectral profile on the intelligibility of emotional speech in noise

Chris Wayne Davis, Cheeseng Chong, Jeesun Kim

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

The current study investigated why the intelligibility of expressive speech in noise varies as a function of the emotion expressed (e.g., happiness being more intelligible than sadness), even though the signal-to-noise ratio is the same. We tested the straightforward proposal that the expression of some emotions affect speech intelligibility by shifting spectral energy above the energy profile of the noise masker. This was done by determining how the spectral profile of speech is affected by different emotional expressions using three different expressive speech databases. We then examined if these changes were correlated with scores produced by an objective intelligibility metric. We found a relatively consistent shift in spectral energy for different emotions across the databases and a high correlation between the extent of these changes and the objective intelligibility scores. Moreover, the pattern of intelligibility scores is consistent with human perception studies (although there was considerable individual variation). We suggest that the intelligibility of emotion speech in noise is simply related to its audibility as conditioned by the effect that the expression of emotion has on its spectral profile.

Original languageEnglish
Pages581-585
Number of pages5
DOIs
Publication statusPublished - 2017
Event18th Annual Conference of the International Speech Communication Association, INTERSPEECH 2017 -
Duration: 20 Aug 2017 → …

Conference

Conference18th Annual Conference of the International Speech Communication Association, INTERSPEECH 2017
Period20/08/17 → …

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