Re: [stella] One Bit Sound?

Subject: Re: [stella] One Bit Sound?
From: Lord Spambraticus of Borg <lord-of-hell@xxxxxxxxxxxxxxxx>
Date: Wed, 10 Feb 1999 17:51:06 +1000
On Tue, 09 Feb 1999 23:05:58 -0800 krishna@xxxxxxxxxxxxxxx (Glenn Saunders)
wrote:

>What you are describing may relate to how the Pitfall II cartridge creates
>sound.  If you want an example of the penultimate of what the 2600 sound
>generators can do, the DPC chip is what allows that.
>
>I doubt that what you want could be done without extra hardware given the
>6507's clock speed and its everpresent task of updating the kernel.

Well, if you were content to do it whilst little graphics activity was going on,
such as a between level song or "atta boy!" sort of thing, it would be easier...

To do it whilst graphics animation or a complex playfield needed to be drawn,
ouch....  you'd have to "compromise" your graphics kernel to do a sort of TDM of
the graphics and sound stuff.  Naaaasteee.

Hrm... but I may take the combat sources and fiddle with 'em to see the
feasibility of adapting a sorta resynthesis sound with SOME graphics playfield
stuff.... I can think of some schemes to do it, though the sound quality will
NOT be STELLAr ;)

Worst comes to worst, you can scanline steal [draw every other scanline], major
yucks, but I could imagine certain game types wouldn't suffer too much for it.

=Rob=


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