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Bryan, A commonly used reference for measuring auditory roughness is a
1 kHz tone with a sine wave amplitude modulation at 70 Hz. The roughness of
this sound can be modified by changing its modulation depth. A summary of this
work is available in: Zwicker E, Fastl H:
Psychoacoustics : Facts and models, ed 2nd updated. Berlin ; New York,
Springer, 1999. In our own research on
roughness perception in voices, we have used a somewhat different reference for
quantifying roughness. We use a 150 Hz sawtooth wave mixed with some noise
(SNR=12 dB) as the carrier signal. The amplitude of this carrier signal is
modulated by a 40 Hz raised sine wave. The roughness of this signal can then be
varied by manipulating the modulation depth. Shrivastav R, Eddins DA,
Patel S, Cummings S: A rough task: Defining a measure for rough voice quality.
J Acoust Soc Am 2008;124:2495. (Poster presented at a recent
ASA meeting) I’m afraid, I have few ideas
about manipulating roughness in visual images or the connection between auditory
and visual roughness. Rahul From: AUDITORY - Research
in Auditory Perception [mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Bryan
Pardo From: Bryan Pardo
[mailto:pardo@xxxxxxxxxxxxxxxx] Hi everyone, Some colleagues of mine are interested in the relationship
between roughness in visual images and audio images. They sent me the following
questions they were thinking about in hopes that I might be able to provide
some references to get them started. I figured this is just the mailing
list to get some pointers to papers. If any of these questions make you think
of a paper or two, I’d appreciate your emailing the reference. 1) Do we have a reliable method to measure the
roughness of a given a natural sound or image? 2) How could one synthesis sound clips (and images) with
ascending or descending order of roughness? 3) How can acoustic roughness influence the perceived
roughness of the vision? Thanks all! -
Bryan Pardo From: AUDITORY - Research
in Auditory Perception [mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Tony
Miller While we are on the topic, I'd
like to point list members to a really fine talk by Ani Patel on Music and the Mind
for the UCSD show "Grey Matters". On Thu, Jan 15, 2009 at 2:15 PM, Aniruddh Patel <apatel@xxxxxxx> wrote: Dear List, |