Title: Equal autophonic level curves under different room acoustics conditions
Authors: Pelegrin-Garcia, David ×
Fuentes-Mendizabal, Oier
Brunskog, Jonas
Jeong, Cheol-Ho #
Issue Date: Jul-2011
Publisher: American Institute of Physics for the Acoustical Society of America
Series Title: Journal of the Acoustical Society of America vol:130 issue:1 pages:228-238
Abstract: The indirect auditory feedback from one's own voice arises from sound reflections at the room boundaries or from sound reinforcement systems. The relative variations of indirect auditory feedback are quantified through room acoustic parameters such as the room gain and the voice support, rather than the reverberation time. Fourteen subjects matched the loudness level of their own voice (the autophonic level) to that of a constant and external reference sound, under different synthesized room acoustics conditions. The matching voice levels are used to build a set of equal autophonic level curves. These curves give an indication of the amount of variation in voice level induced by the acoustic environment as a consequence of the sidetone compensation or Lombard effect. In the range of typical rooms for speech, the variations in overall voice level that result in a constant autophonic level are on the order of 2 dB, and more than 3 dB in the 4 kHz octave band. By comparison of these curves with previous studies, it is shown that talkers use acoustic cues other than loudness to adjust their voices when speaking in different rooms. (C) 2011 Acoustical Society of America. [DOI: 10.1121/1.3598429]
ISSN: 0001-4966
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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