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From: murat@farcomp.UUCP (Murat Konar)
Newsgroups: comp.sys.mac.misc
Subject: Re: Stereo Sounds?
Message-ID: <205@farcomp.UUCP>
Date: 1 Jun 90 01:11:07 GMT
References: <1990May29.220600.24918@portia.Stanford.EDU> <2562@media-lab.MEDIA.MIT.EDU>
Reply-To: murat@farcomp.UUCP (Murat Konar)
Distribution: na
Organization: Farallon Computing Inc. Berkeley, CA
Lines: 29

In article <2562@media-lab.MEDIA.MIT.EDU> adam@media-lab.media.mit.edu (Adam Glass) writes:
>ralphm@portia.Stanford.EDU (Ralph Melton) writes:
>> The Mac SE/30 and above has have a stereo output jack.
>>
>> When I plug in headphones to the jack, I can hear the sound in both
>> ears. I'm looking for sounds that have true stereo separation.
>
>I haven't poked around inside my II enough, but I was under the
>impression that while the jack was indeed two-channeled, they were
>hard-wired together. That is to say, there's no way to do true stereo
>sound on the mac without expensive external hardware.i

I did a little applied research today and found that the headphone jack on a 
Mac SE is wired only in the left channel.  This is presumably the case for 
Mac Pluses as well.  The portable, SE/30 and Mac II variants all have stereo
capability via the headphone jack.

The standard system beeps are all in mono.  I made a stereo 'snd ' resource
and pasted it into the system file but the sound would not even play. 
This makes sense since the the replacement sound manager chapter says on
page 32 that only single monophonic sounds are supported. 



-- 
____________________________________________________________________
Have a day. :^|             
Murat N. Konar	
murat@farcomp.UUCP             -or-          farcomp!murat@apple.com