Re: AUDITORY Digest - 3 Mar 2005 to 4 Mar 2005 (#2005-41)

["M.A. Stone" <mas19@xxxxxxxxxxxxx>]

On Sat, 5 Mar 2005, Jont Allen wrote:
> Fast attack (1 sample, 0 delay) and exp decay is good, psychophysically
> speaking.

Would beg to disagree here: try......

Stone M.A. & Moore B.C.J. (2004). Side effects of fast-acting dynamic range
compression that affect intelligibility in a competing speech task. J.
Acoust. Soc. Am. 116:2311-2323.

Experiment 1 shows the effect of attack time on intelligibility in a
competing speech task ('noise-vocoder' simulation), with a single channel
fast-acting compressor (CR = 7).  < 2msec attack = not good.

It was a similar comment by Jont at an IHCON meeting (Tahoe ?) that partly
made us do the experiment.  ;-)

Michael Stone

Psychoacoustics Group
Department of Experimental Psychology
University of Cambridge, Downing St.
Cambridge CB2 3EB.  United Kingdom.

Group site:  http://hearing.psychol.cam.ac.uk/
Dept site :  http://www.psychol.cam.ac.uk/