From mailserv@gaia.ucs.orst.edu  Wed Feb 22 14:37:30 1995
Precedence: Bulk
Date: Wed Feb 22 12:20:13 PST 1995
From: gus-sdk-request@gaia.ucs.orst.edu (GUS Programmer's Server)
Reply-To: gus-sdk@gaia.ucs.orst.edu (GUS Programmer's Digest)
Subject: GUS Programmer's Digest V16 #22

GUS Programmer's Digest     Wed, 22 Feb 95 12:20 PST     Volume 16: Issue  22 

Today's Topics:
                    GUS Max Codec - bad crystal?!
                            volume ramping

Standard Info:
	- Meta-info about the GUS can be found at the end of the Digest.
	- Before you ask a question, please READ THE FAQ.

----------------------------------------------------------------------

Date: Wed, 22 Feb 1995 00:49:22 +0200 (EET)
From: Jani Mattsson <janmat@utu.fi>
Subject: GUS Max Codec - bad crystal?!
Message-ID: <Pine.SUN.3.91.950222003408.24624A-100000@polaris.cc.utu.fi>

	
	Hey all GUS Max owners! I'd like to ask a favor from you..
	if you haven't got any problems getting the card out of
	your computer, could you take it in your hand so that
	you can see the 'Cystal' text on the Codec chip oriented
	like it should be when you normally read text. On the left
	from ithe Codec, there are two metal-covered oscillator 
        crystals. Could you please read what is written on the
	leftmost one and E-mail me what it says there? (** Don't
	use (r)eply to this digest!! **)

	The problem is, that the Codec data sheet says the codec
	needs a 16.9344MHz input, but on the crystal my GUS Max
	has, it reads 19.75MHz. And everytime I use playfile or
	any Windows program to digitize or playback something, the
	sampling rate is too high, i.e. if I set the sampling rate
	to 22050 in the program, the actual rate is something like
	25700Hz, which matches closely the difference between
	the frequencies of the invalid and the correct crystal
	frequencies.

	So I now suspect that Gravis has accidentally put a wrong
	type of crystal on the card that I have, and I'd like
	to know if everybody else has a 16.9344MHz chip there
	instead (as it should be).


/Jani Mattsson
 

------------------------------

Date: Wed, 22 Feb 1995 11:27:30 GMT+1
From: "Emil Heyrovsky" <HEYROVSKY@km1.fjfi.cvut.cz>
Subject: volume ramping

Hello.
I'm trying to play .pat files using the sdk.
How do I determine which voice caused a volume ramp interrupt? 
Is there a function for this in the sdk? The documentation says 
that the voice number is returned to my handler as an unsigned 
integer. How is it returned?? (I'm learning C while doing this 
program.) 
Thanks in advance.

Emil

heyrovsky@km1.fjfi.cvut.cz

------------------------------

End of GUS Programmer's Digest V16 #22
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