Re: GS Sound Question

[Polymorph <mike.a.stephens@gmail.com>]

On Mar 11, 12:09 am, lyricalnan...@dosius.ath.cx (Steve Nickolas)
wrote:
> Drew wrote:
> > Hi,
>
> > I am trying to work out what the correct left and right channel is for
> > GS audio as had some conflicting information and before isstart to put
> > the GS stereo cards together i want to make sure 100% its all
> > correct :). Is there a program that anyone knows of that shows this
> > easily? (or a demo).
>
> > What i had thought was the right channel was questioned yesterday when
> > i plugged in my Audio Animator and it produced sound out of the
> > "wrong" side. The Emulators i have tested matches my view of what
> > should be the right channel, but thought i would post here before
> > commiting to a side :)
>
> > Drew
>
> Arkanoid 2's "break into the next level" sound seems to come out of the
> wrong channel (imho) in KEGS?  Dunno if that's true of a sound card too.
>
> -uso.

Hi Drew,

Apple IIgs Technote #19 states:
"Apple standards require stereo expansion cards to map all even output
channels
to the right and odd channels to the left.  To be compatible with
cards that
decode more than two of the chip's output channels, software should
use
channel zero for right and channel one for left.  This convention
ensures that
output is always positioned properly in the stereo space with channel
zero
information going to the right front and channel one information going
to the
left front."

Hope this helps!

Cheers,
Mike