Re: Perceptual roughness increase with component reductions

[Rahul Shrivastav <rahul@xxxxxxxxxxx>]

Chen-Gia,

Some papers that may be of interest to you are listed below. I am
running an experiment to study the perception of roughness in voice as I
write this and hope to have some data in the very near future.
Constraints on vocal fold physiology limit how the vocal acoustic signal
can vary. These constraints must be taken into account when studying
voice quality. In my opinion perception of roughness in human voices
results from an interaction between SNR and frequency/intensity
perturbation.

Omori, K., Kojima, H., Kakani, R., Slavit, D. H., & Blaugrund, S. M.
(1997). Acoustic characteristics of rough voice: Subharmonics. Journal
of Voice, 11(1), 40-47.

Bergan, C. C., & Titze, I. R. (2001). Perception of pitch and roughness
in vocal signals with subharmonics. J Voice, 15(2), 165-175.

Sun, X., & Xu, Y. (2002). Perceived pitch of synthesized voice with
alternate cycles. J Voice, 16(4), 443-459.

Rahul

--------------------------------------
Rahul Shrivastav, Ph.D.
Assistant Professor
Communication Sciences and Disorders
Dauer Hall, Room 48
Gainesville FL 32611

Phone: (352) 392-2046 (ext. 230)
Fax: (352) 392-6170

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-----Original Message-----
From: AUDITORY Research in Auditory Perception
[mailto:AUDITORY@LISTS.MCGILL.CA] On Behalf Of Chen-gia TSAI
Sent: Monday, March 24, 2003 9:16 PM
To: AUDITORY@LISTS.MCGILL.CA
Subject: Perceptual roughness increase with component reductions


Dear list,

I am looking for recent papers which account for roughness in human
voices with psychoacoustic models for roughness calculation (e.g.
Reuter, R. Untersuchung der Rauhigkeit menschlicher Stimmen auf der
Grundlage der nichtlinearen Dynamik und der Psychoakusik. PhD Diss., TU
Berlin 2000). My preliminary experiment shows that perceptual roughness
of a periodic complex tone can increase as its components at low
frequencies are eliminated or reduced. This appears to contradict to
existing psychoacoustic models of roughness.

The stimuli and their spectra can be found at
http://server37.hypermart.net/berlin-music/ex/subharmonics.htm

Any hints and/or references are very appreciated.

Best,
Chen-Gia Tsai
gia@snafu.de