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Forums - Synths & synthesis
Subject: a few synth programming questions
Original Message Date: 03-Feb-03 @ 03:22 PM - a few synth programming questions
Sorry for the constant questions. Maybe I can help someone someday. Anyways..........
A couple of basic areas where I'm having difficulty understanding things.
1. I believe that when you detune 2 oscillators by different frequencies, the result is 2 signals that are moving in and out of phase with each other so there will be times when they interfere destructively. I understand that on pads/strings that this is cool BUT what about basslines? I mean I wouldn't want the 2 osc to be cancelling anything out cos then I lose bottom end right?
2. I read that Keith Emersons' lead sound had 3 oscillators tuned to the tonic, third and fitth. So, on my es2 if I tune osc 1 to the root note (is that the same as tonic?), osc 2 to a third and osc 3 to a fifth then I get the same kinda sound yea? So in the key of C, I would have:
osc 1 - C root (minus 12)
osc 2 - E
osc 3 - G
A couple of basic areas where I'm having difficulty understanding things.
1. I believe that when you detune 2 oscillators by different frequencies, the result is 2 signals that are moving in and out of phase with each other so there will be times when they interfere destructively. I understand that on pads/strings that this is cool BUT what about basslines? I mean I wouldn't want the 2 osc to be cancelling anything out cos then I lose bottom end right?
2. I read that Keith Emersons' lead sound had 3 oscillators tuned to the tonic, third and fitth. So, on my es2 if I tune osc 1 to the root note (is that the same as tonic?), osc 2 to a third and osc 3 to a fifth then I get the same kinda sound yea? So in the key of C, I would have:
osc 1 - C root (minus 12)
osc 2 - E
osc 3 - G
Message 11/12 08-Feb-03 @ 03:59 AM - RE: a few synth programming questions
That's it, in case you didn't find it elsewhere. Single OSC, but a monster.
Ape
Ape
Message 12/12 08-Feb-03 @ 11:31 AM - RE: a few synth programming questions
BJT
Posts: 90
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Yeah, two sin waves detuned modulate each other and give the impression of a lower sine wave, this is called "beating".
It can be explained by good old geeky trig:
2sin(x)cos(y)=sin(x+y)+sin(x-y)
It can be explained by good old geeky trig:
2sin(x)cos(y)=sin(x+y)+sin(x-y)
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