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making "zaps"
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fregle
IsraTrance Junior Member
Started Topics :
11
Posts :
982
Posted : Mar 21, 2005 13:53
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hmmm.. i'll try it with my juno-60's filter... tnx colin
I think u need a really snappy envelope too... but if u have a good controller, maye try it manually? |
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orik
IsraTrance Junior Member
Started Topics :
45
Posts :
317
Posted : Mar 21, 2005 15:18
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self oscilating filter...
ok...how axactely does it work...i mean it cuts and boosts certain frequencies...whats the oscilation bit axactely? |
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14-year old e-tard
IsraTrance Junior Member
Started Topics :
11
Posts :
797
Posted : Mar 21, 2005 15:38
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Here's what you can do to get some more interesting FM zaps.
Set an LFO (in the audio range), or a VCO/digital oscillator to modulate the filter's cut-off frequency. Crank the resonance up to self oscillation and set an ADSR to sweep the filter's cut off down and/or up. The analog people will need a second CV input on the filter module. The digital people will need to use a synth with a matrix that allows two or more modulators to modulate one destination (in this case the filter's cut-off).
Play with the filter's cut-off, modulation amounts to get your desired FM sweep.
 Me>You |
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Colin OOOD
Moderator
Started Topics :
95
Posts :
5380
Posted : Mar 21, 2005 16:03
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Orik - turn the resonance ALL THE WAY UP and find out! If you get a constant tone of which you can change the pitch by changing the filter cutoff, the filter is oscillating itself.
E-tard - So many interesting things you can do with an oscillator modulating the cutoff - sweeping the LFO speed down from audio frequencies to 2 Hz and back up again gets some great movement, and at the lower speeds (and indeed the higher speeds) the LFO shape makes a huge difference.
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Contact for bookings/mastering - colin@oood.net |
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14-year old e-tard
IsraTrance Junior Member
Started Topics :
11
Posts :
797
Posted : Mar 21, 2005 16:55
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It is in the sub 20Hz (and a bit higher actually) frequencies where the LFO shape changes the sound the most. Another nifty trick is changing the pulse width of a square oscillator (don't there's (m)any LFOs that allow for PWM)that modulates the cut-off. Perfect for going into a noisy Roland Space Echo and getting those regge square sirens that work wonders at higher BMPs as well.
Me>You |
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fregle
IsraTrance Junior Member
Started Topics :
11
Posts :
982
Posted : Mar 22, 2005 19:13
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modulating the PWM is great for those 'computer bleeps' too. Just make a pattern, put an LFO on the PW of the square, set it quite high in speed, and don't hold ur notes too long (short stabs), and every stab the PW will be different and u'll have that typical computer bleep sound (like in 'bring ur own bios') |
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