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Forums > C64 Composing > Composing with SID 8580
2013-01-23 14:50
SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238
Composing with SID 8580

So, was composing on my original C64 from 1985, 6581..
Its not working very good atm, coz of broken CIA chip..

So i want to try 8580 now, and get fat basses on heavier drums..

I cant really get the monster bass that i want, even when low cutoff and stuff.. (or they dont sound special, they sound like my 6581 basses)

Some tips please ?
2013-01-23 15:31
Radiant

Registered: Sep 2004
Posts: 639
Remember that on 8580 cutoff 0 and low pass filter = mute. Gradually step up from 0 to find the nice sub-bass frequencies... Personally I prefer frequencies around $030-$040 (that's $03-$04 for us Goat Tracker users).

In general you have a much smaller range of useful cutoff frequencies on 8580, values above $400 or somewhere in the therabouts are quite similiar to each other.
2013-01-23 17:01
Hate Bush

Registered: Jul 2002
Posts: 465
try to use combined filter (not plain low pass one).
2013-01-23 17:51
Soren

Registered: Dec 2001
Posts: 547
I know this is a thread for 8580, but when doing combined filters a bit wisely, one can also do them on 6581. :)
Now keep going. I am also interested in 8580 and will hopefully do more music for this chip. :)
2013-01-23 18:29
Hermit

Registered: May 2008
Posts: 208
For me these are the things that can make bass sounds fatter or more interesting: Creating rich harmonics 'before' using the low-pass (or combined low+band) filter by: using $31 or other combined waveform or using fast pulsewidth-sweep on $41 waveform. Or setting keyboard-track so the deeper notes feel really deeper than the average notes. I think it's important sometimes to get some higher cutoff at the beginning of the bass-sounds to give it a strong accent and then sweep to deep...the sweep could also be slowed down gradually as going deeper so the deep sounds can go through the resonance point of the audio equipment for enough time to kick it off :) But I think these are the usual ways people tend to do it, I just rephrased what I found out so far...
2013-01-23 21:30
Radiant

Registered: Sep 2004
Posts: 639
Combined bandpass + highpass and a low cutoff gives drum sounds a very nice punch.
2013-01-23 22:23
SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238
Hmm, i been working on a tune all day, and its very different from all my rest. i just wanna try something new and outrageous.

Got the hardest kick i ever did..

Well i know sid, so there isnt really much else to than what you said is there ?
2013-01-23 23:06
NecroPolo

Registered: Jun 2009
Posts: 231
Quote: Hmm, i been working on a tune all day, and its very different from all my rest. i just wanna try something new and outrageous.

Got the hardest kick i ever did..

Well i know sid, so there isnt really much else to than what you said is there ?


I think I get it mate.

The 8580 is a f'n ragin' bull if you kick it hard enough. I'd say, ringmod + synch bit on everything, let your bass channel drive those mixed waveforms, filter on everything and when all animals smaller than 10 centimeters are collapse fuckin' dead in a kilometer around you and the texture of the universe is about to melt around the 8580 chip - you're around there.
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