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Conrad
Registered: Nov 2006
Posts: 856 |
Playing digi samples with a tune running at 12x or over.....?
Hi.
Is is possible to play samples using a tune playing at say 12x speed or maybe over.... rather than using a standard NMI interrupt routine?
After all, samples are played by basically altering $d418's low nybble (volume) ... just curious if a music player could achieve this by playing at 12x or such.
At the same time also, you could have cool ringtone effects playing in 1 to 3 voices AND play digis at the same time (and also have clear sharp filters possibly). |
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Cruzer
Registered: Dec 2001
Posts: 1051 |
Sample/raster stuff in this classic as well... Mixer
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algorithm
Registered: May 2002
Posts: 707 |
And another demo in the wonderland series (Displayed a FLI pic of a dragon) with VSP and digi's |
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trident
Registered: May 2002
Posts: 101 |
Allright if we should boast about our digi + border effect code, I'll do that too :). Hellfork, all-border playable Wolfenstein clone with sampled sound effects over SID music. |
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Oswald
Registered: Apr 2002
Posts: 5127 |
*yawn* hmm anyone around that can do something more complex than digis together with rasters ? how about some hot filledvector talk, who can come up with the fastest 3d rot, linedraw, and fill routine ? |
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trident
Registered: May 2002
Posts: 101 |
Quote: *yawn* hmm anyone around that can do something more complex than digis together with rasters ? how about some hot filledvector talk, who can come up with the fastest 3d rot, linedraw, and fill routine ?
Hmmm, didn't someone say something about digis with all-border filled 3d? ;) |
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Conrad
Registered: Nov 2006
Posts: 856 |
Quote: Also for the record:
CIA1 timers produces IRQ
CIA2 timers produces NMI
VIC produce IRQ.
RESTORE produce NMI.
BRK produce IRQ.
etc..
So, when you speak of NMI I guess you mean "using timer interrupts (CIA2)"... and when you speak of IRQ I guess you mean "using VIC raster interrupts".
yes. Sorry about that, must be the way I said it :p |
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Oswald
Registered: Apr 2002
Posts: 5127 |
trident, well anything is possible, how about a 50 fps phong torus in 64x64 pixels on the sideborder with digis ? :) |
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Style
Registered: Jun 2004
Posts: 498 |
Oswald has done it all :)
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Stryyker
Registered: Dec 2001
Posts: 469 |
IRQ via CIA 1 works fine for samples with some care. I remember experimenting with using two timers to mix two samples in real time. Wasn't good design but worked :) |
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Dane
Registered: May 2002
Posts: 423 |
Quote: trident, well anything is possible, how about a 50 fps phong torus in 64x64 pixels on the sideborder with digis ? :)
Great idea Oswald. I'll write a sideborder tutorial someday. |
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