Benefit of temporal fine structure to speech perception in noise measured with controlled temporal envelopes
| Autor: | Pádraig T. Kitterick, A. Quentin Summerfield, Joanne M. Eaves |
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| Rok vydání: | 2011 |
| Předmět: |
Adult
Sound Spectrography Time Factors Speech perception Adolescent Acoustics and Ultrasonics Computer science Speech recognition Acoustics genetic processes Intelligibility (communication) Speech Acoustics Young Adult Arts and Humanities (miscellaneous) Humans natural sciences Speech Reception Threshold Test fungi Auditory Threshold Speech processing Noise Acoustic Stimulation Speech Perception Audiometry Pure-Tone Cues Perceptual Masking Envelope (motion) |
| Zdroj: | The Journal of the Acoustical Society of America. 130:501-507 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.3592237 |
| Popis: | Previous studies have assessed the importance of temporal fine structure (TFS) for speech perception in noise by comparing the performance of normal-hearing listeners in two conditions. In one condition, the stimuli have useful information in both their temporal envelopes and their TFS. In the other condition, stimuli are vocoded and contain useful information only in their temporal envelopes. However, these studies have confounded differences in TFS with differences in the temporal envelope. The present study manipulated the analytic signal of stimuli to preserve the temporal envelope between conditions with different TFS. The inclusion of informative TFS improved speech-reception thresholds for sentences presented in steady and modulated noise, demonstrating that there are significant benefits of including informative TFS even when the temporal envelope is controlled. It is likely that the results of previous studies largely reflect the benefits of TFS, rather than uncontrolled effects of changes in the temporal envelope. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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