Re: auditory scrambling

[Valeriy Shafiro <Valeriy_Shafiro@xxxxxxxx>]

Hi Mathias,

I did this some years ago in Matlab and also in Java (with less controls).
I was trying to see how difficult putting speech,music or scenes together
becomes based on segment duration and number.  But, unfortunately it never
got to a formal experiment.  One curious effect I remember is that when you
'scramble' a speech utterance of a single talker into very short segments
(I want to say 50 -100 ms long, but I don't remember precisely now), you
actually hear more than one talker, which is not all that surprising I
thought given the discontinuities introduced during scrambling.  If you are
interested, I can look if I still have the code.

Best,

Valeriy



-------------------------------------------------------------
Valeriy Shafiro
Communication Disorders and Sciences
Rush University Medical Center
Chicago, IL

office (312) 942 - 3298
lab    (312) 942 - 3316
email: valeriy_shafiro@xxxxxxxx



-----AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>
wrote: -----


To: AUDITORY@xxxxxxxxxxxxxxx
From: Mathias Oechslin <m.oechslin@xxxxxxxxxxxxxxxxxxxx>
Sent by: AUDITORY - Research in Auditory Perception
<AUDITORY@xxxxxxxxxxxxxxx>
Date: 12/18/2007 06:00AM
Subject: auditory scrambling

Dear list,

Has anyone any experience with an automatic approach to "scramble" acousic
stimuli?
That means for example: first step, segmentation of a 4 secs phrase in 10
segments of 400ms: second step,  rearragement in a random order.
An advanced implementation would be to have the opportunity to define any
possible time range (i.e 50-400ms), at which the script rearranges the file
randomly.

Thanks for any ideas,
Mathias


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Mathias Oechslin
Ph.D student
Department of Neuropsychology
Institute for Psychology
Binzmühlestrasse 14/25
University of Zürich
CH-8050 Zürich
Switzerland
http://www.psychologie.unizh.ch/neuropsy/

m.oechslin@xxxxxxxxxxxxxxxxxxxx
phone: +41 44 635 74 07


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