From mailserv@gaia.ucs.orst.edu Wed Oct 19 14:44:46 1994
Precedence: Bulk
Date: Wed Oct 19 12:40:01 PDT 1994
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 V13 #10

GUS Programmer's Digest     Wed, 19 Oct 94 12:40 PST     Volume 13: Issue  10 

Today's Topics:
                     A basic, beginner's question
                       GUS MIDI driver source?

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: Tue, 18 Oct 94 16:26:24 -0700
From: Tim Gentry <tim.gentry@mccaw.com>
Subject: A basic, beginner's question

In all the GUS SDK documentation I see a more-than-adaquate treatment of  
sound playback, but the documentation on sound recording is a bit lacking.  I  
can understand the mechanics of continous digital sound playback (looping,  
rollover, etc), but I don't understand the methods to use to implement  
continous recording.

I see that the actual recording is taking place via DMA directly into the  
PC's memory (rather than the GUS RAM).  Is it possible to set the recording  
to loop inside of a (for example) 20K block, sending an IRQ when a rollover  
point (10K, say) is reached?  It makes sense that this would be possible, but  
I don't see from the SDK docs how to set it up.

Also, what is the lowest sampling rate that would allow distinguishable  
speech to be recorded?  I'm looking at an application that needs to be able  
to transfer sampled speech through a _s_l_o_w_ communications connection, and  
even with ADPCM encoding I'll still need to minimize the samples...

Thanks for the help, and I apologize for the beginner's questions. ;-)

   -Tim
    tgentry@netcom.com

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

Date: Wed, 19 Oct 1994 13:31:55 BST
From: Chris Barrett <se2cb@de-montfort.ac.uk>
Subject: Re: GUS MIDI driver source?

Hi GUS proggers.

I am attempting to write some MIDI software (player, sequencer type stuff), and
I have all the info I need on the MIDI format, and the .PAT file format.

What I have not yet come across is any source code which handles the playing of
patches (including all that enveloping and vibrato stuff). 

There's plenty of source for playing MODs, but does anybody out there have or
knows of any freely available source to do such a thing?

I'd luv to hear from ya...
--
Chris A. Barrett
De Montfort University, Leicester, UK
se2cb@dmu.ac.uk
"Electronic mail - the best thing since electronic bread."

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

End of GUS Programmer's Digest V13 #10
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