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From: sandell@ils.nwu.edu (Greg Sandell)
Newsgroups: comp.sys.mac.wanted,comp.sys.mac.hypercard,comp.music
Subject: Playing sound on the Mac:  snd1 vs snd2 resources
Message-ID: <1158@anaxagoras.ils.nwu.edu>
Date: 12 Jul 90 17:24:49 GMT
Sender: news@anaxagoras.ils.nwu.edu
Reply-To: sandell@ils.nwu.edu (Greg Sandell)
Organization: The Institute for the Learning Sciences
Lines: 35

Is there a way to convert a sound resource in snd1 format to snd2
format?  I mean, is there a program around somewhere that will
do this for you?

A little background information:

There are two sound resource formats, snd1 and snd2.  MacRecorder
will save sounds as resources, and it chooses snd1 as its format.
Unfortunately if you want to use those resources in HyperCard
or SuperCard, you're hosed, since they will only recognize snd2
format.  SuperCard 1.5 is nice enough to warn you that it won't
recognize non-snd2 format resources, but offers no way to change
them.

If you're lucky enough to have a sound resource in snd2 format
lying around, you can use it as a prototype to create further
instances of snd2 resources (in MacRecorder).  But if you don't
have one of these, you're hosed.  Or if the one you have is at
11k sampling and the sampling rate you want is 22k, tough luck,
your 22k recording is converted to 11k.  (Yes!)

Are there any recording programs that do create snd2 resources?

Thanks in advance,
Greg Sandell

p.s. Yes, I do have a copy the latest Sound Manager docs from 
apple.com which descirbes the two formats.  If I can't find a
pre-existing resource conversion program, then I'll probably use 
this information to write one myself.

****************************************************************
* Greg Sandell (sandell@ils.nwu.edu)              Evanston, IL *
* Institute for the Learning Sciences, Northwestern University *
****************************************************************