| Issue |
Acta Acust.
Volume 6, 2022
|
|
|---|---|---|
| Article Number | 10 | |
| Number of page(s) | 6 | |
| Section | Speech | |
| DOI | https://doi.org/10.1051/aacus/2022006 | |
| Published online | 29 March 2022 | |
Short Communication
Pilot study on the influence of spatial resolution of human voice directivity on speech perception
1
Audio Communication Group, Technische Universität Berlin, Einsteinufer 17c, 10587 Berlin, Germany
2
Univ. Grenoble Alpes, CNRS, Grenoble INP, GIPSA-Lab, 38000 Grenoble, France
* Corresponding author: paul.luizard@lilo.org
Received:
16
October
2020
Accepted:
14
February
2022
A perceptual threshold related to spatial resolution of the human voice directivity was determined through a listening test of similarity (MUSHRA). Directivity data of an artificial talking head measured at high spatial resolution (spherical harmonics order 35) was the input of a room acoustics simulation software (RAVEN) to build sound stimuli in various room acoustic conditions and source–receiver arrangements, with different voices. Results showed that, at spherical harmonics order 8 and above, the voice signal was not anymore perceived as significantly different from the greatest resolution. An analytical model was proposed and showed good agreement with the listening test results.
Key words: Voice spatial resolution / Room acoustic simulation / Voice perception / Perceptual threshold
© A. Quélennec & P. Luizard, Published by EDP Sciences, 2022
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