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I want to prepare a base so we can play with my band a cover of this song:

I have a Korg R3 and Garageband.

Can you hear the "choppy" synth at the beginning? How could I reproduce it well? Which kind of sound / effect should I choose?

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The rythmic effect can be achieved by filtering some signal through a lowpass VCF (12 dB/8ve, little resonance) heavily modulated (~ 800 Hz down to 20 Hz) by a sawtooth LFO. That gives the basic "choppy" thing. Then you can try all kinds of stuff to get the actual sound; perhaps start with a PWM-square or sawtooth VCO and ring-modulate it with a triangle after the VCF, then a fixed bandpass filter with a little saturation.

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    That sounds so tron! :D I hope I can hack my way through finding this in garageband or logic or anything! I'll keep you posted and then vote for answer: thanks for now. – Pitto Oct 11 '11 at 10:49
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    My money is on the signal being distorted before it gets to the filter, and in fact, my money is on the signal being a power chord played through the same amp, with the exact same configuration as the "main" guitar part. – Some Dude On The Interwebs Mar 20 '15 at 20:24
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I think it's just a standard power chord played on guitar, possibly looped, then fed through a low pass VCF with some resonance, modulated by a sawtooth LFO. Some additional equalizing should give you a really close approximation.

  • Definitely a possibility; at any rate the sound blends in very well with all the guitars on the album – though, there are quite a few definitive keyboards on that track. You don't have a reference that it was done this way in the original? – leftaroundabout Mar 20 '15 at 21:33
  • Not at all, I'm sorry. I did feed my guitar through the same configuration on a track I cut a long time ago, and it sounded like the OP's video :) – Some Dude On The Interwebs Mar 20 '15 at 21:42

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