[comp.sys.amiga] Sound digitizer IFF files

duncan@csd4.csd.uwm.edu (Shan D Duncan) (11/23/89)

I'll try this question again.  (It is in upper case for those who
do not need to read the rest of my verbage).

I got several responses to my previous question.  How can I
extract the information in a sound 8SVX (??) file to use on a
system that reads ascii information.  Several people suggested
using uuencode and uudecode.  I don't want to mail the stuff!  So
perhaps I need to reword.

On looking at some digitizing software (perfect sound for
example) the samples are stuffed into memory and your only option
is to save as IFF type files.  Now the waveform is just +- some
voltage from the A/D converter.  I want to import this
information, preferably as Integer values I can then send over
to our unix system and run fft's and such on a faster system with
more memory than my amiga.  

IS THERE A PROGRAM THAT CAN READ IFF SOUND FILES AND PRINT OUT
THE WAVEFORM INFORMATION AS INTEGERS?

I don't care if it is in AREXX, BASIC, C, FORTRAN, PASCAL...

no it would be nice if it could run under unix but ANYTHING would
be most appreciated. Email or post.


-Thanks

-Shan D.

jsivier@uxe.cso.uiuc.edu (11/24/89)

  I haven't yet done any programming with IFF sound files but I have done some 
with IFF bit map files.  I don't know of any commercial or PD software which
will read in IFF files and output them as an ascii file.  You could try doing
a hex dump of the IFF file and edit it to strip off the header information
leaving just the BODY segment with the actual sound data.  I don't know if this
is compressed or not though.
  I am currently beginning work on a program that will interface will an
Ensonics Mirage sampler and download samples over MIDI, allow you to edit and
process the samples and then return them to the Mirage for use with synthesizers
Currently the program will download a selected sample, play it on the Amiga,
and save and load the samples to disk.  However the samples are currently being
saved in straight binary files, I haven't yet ventured into dealing with the
IFF sound files, but I will very soon.
  If I get it to load and save IFF sound files in the near future I'll let you
know, because once the file is read it should be easy to write it out in any
desired format.

jon
jsivier@uxe.cso.uiuc.edu