Maximum Acceptable Vibrato Excursion as a Function of Vibrato Rate in Musicians and Non-musicians

Marianna Vatti, Sébastien Santurette, Niels H. Pontoppidan, Torsten Dau

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Abstract

Human vibrato is mainly characterized by two parameters: vibrato extent and vibrato rate. These parameters have been found to exhibit an interaction both in physical recordings of singers’ voices and in listener’s preference ratings. This study was concerned with the way in which the maximum acceptable vibrato excursion varies as a function of vibrato rate in normal-hearing (NH) musicians and non-musicians. Eight NH musicians and six non-musicians adjusted the maximum vibrato excursion of a synthesized vowel for vibrato rates between 3 and 8 Hz. Individual thresholds varied across vibrato rate and, in most listeners, exhibited a peak at medium vibrato rates (5–7 Hz). Large across-subject variability was observed, and no significant effect of musical experience was found. Overall, most listeners were not solely sensitive to the vibrato excursion and there was a listener-dependent rate for which larger vibrato excursions were favored. The observed interaction between maximum excursion thresholds and vibrato rate may be due to the listeners’ judgments relying on cues provided by the rate of frequency changes (RFC) rather than excursion per se. Further studies are needed to evaluate the contribution of the RFC to vibrato perception and the possible effects of age and hearing impairment.
Original languageEnglish
Title of host publicationProceedings of Meetings on Acoustics
Number of pages7
Volume20
PublisherAcoustical Society of America
Publication date2014
DOIs
Publication statusPublished - 2014
Event166th Meeting of the Acoustical Society of America - Hilton San Francisco Union Square, San Francisco, California, United States
Duration: 2 Dec 20136 Dec 2013

Conference

Conference166th Meeting of the Acoustical Society of America
LocationHilton San Francisco Union Square
CountryUnited States
CitySan Francisco, California
Period02/12/201306/12/2013

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