The Csound manual mentions ENVEXT.EXE as a utility for extracting 
an envelope from a sound file.  I can't find this file anywhere.  Nor 
on the ftp site, nor inside archives (nor in my bin directory).  Does 
anyone know where I am find this file?  

	Also, where and how does it store an extracted envelope?  Could I 
use the envelope within a function table or with an opcode? 

	Thanks.

--
David Vincelli 

Regards to the list and its minds (at which I stare in amazement for over
two years now),

Does anybody know of a good way of adding a doppler effect post hrtf on
an audio signal? (does anybody knows  of a good formula to represent the
doppler effect?)


thx,
/R

Ho hum... it shoul;d be in csound_new.zip but does not seem to be!  I
will look and see what I messed this time.
==John ff

Riccardo Coen wrote:
> Does anybody know of a good way of adding a doppler effect post hrtf on
> an audio signal?

There's an example under "deltapi":
http://www.esm.rochester.edu/www/onlinedocs/Csound/CsOrcMod.html#deltap

> (does anybody knows  of a good formula to represent the doppler effect?)

If your delay line would have to be cumbersomely long, it may be
okay to approximate the effect by just pitch-shifting the sound source:
http://www.astro.virginia.edu/~eww6n/physics/DopplerShift.html

-- 
     Eli Brandt  |  eli+@cs.cmu.edu  |  http://www.cs.cmu.edu/~eli/