Temporal fine structure mediated recognition of speech in the presence of multitalker babble

Pitchai Muthu Arivudai Nambi; Yatin Mahajan; Nikita Francis; Jayashree S. Bhat

doi:10.1121/1.4964416

Temporal fine structure mediated recognition of speech in the presence of multitalker babble

Pitchai Muthu Arivudai Nambi, Yatin Mahajan, Nikita Francis, Jayashree S. Bhat

Western Sydney University

Research output: Contribution to journal › Article › peer-review

Abstract

This experiment investigated the mechanisms of temporal fine structure (TFS) mediated speech recognition in multi-talker babble. The signal-to-noise ratio 50 (SNR-50) for naive-listeners was measured when the TFS was retained in its original form (ORIG-TFS), the TFS was time reversed (REV-TFS), and the TFS was replaced by noise (NO-TFS). The original envelope was unchanged. In the REV-TFS condition, periodicity cues for stream segregation were preserved, but envelope recovery was compromised. Both the mechanisms were compromised in the NO-TFS condition. The SNR-50 was lowest for ORIG-TFS followed by REV-TFS, which was lower than NO-TFS. Results suggest both stream segregation and envelope recovery aided TFS mediated speech recognition.

Original language	English
Pages (from-to)	EL296-EL301
Number of pages	6
Journal	Journal of the Acoustical Society of America
Volume	140
Issue number	4
DOIs	https://doi.org/10.1121/1.4964416
Publication status	Published - 2016

Keywords

atoms
automatic speech recognition
noise
physics
speech perception

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10.1121/1.4964416

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abstract = "This experiment investigated the mechanisms of temporal fine structure (TFS) mediated speech recognition in multi-talker babble. The signal-to-noise ratio 50 (SNR-50) for naive-listeners was measured when the TFS was retained in its original form (ORIG-TFS), the TFS was time reversed (REV-TFS), and the TFS was replaced by noise (NO-TFS). The original envelope was unchanged. In the REV-TFS condition, periodicity cues for stream segregation were preserved, but envelope recovery was compromised. Both the mechanisms were compromised in the NO-TFS condition. The SNR-50 was lowest for ORIG-TFS followed by REV-TFS, which was lower than NO-TFS. Results suggest both stream segregation and envelope recovery aided TFS mediated speech recognition.",

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AU - Nambi, Pitchai Muthu Arivudai

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AU - Francis, Nikita

AU - Bhat, Jayashree S.

PY - 2016

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Temporal fine structure mediated recognition of speech in the presence of multitalker babble

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