osc delay

[hastoy]

Hi,

How do you delay an oscillator in Zebra ? I have osc 1 and osc 2 in 2 different lanes of the matrix and I'm trying to delay osc 1. I've tried with the envelope delay but the oscillators remain in sync, I want to de-synchronize them to create a stereo effect. Thanks !

Cheers

Guillaume

[3ee]

If you want "micro" delay, you can activate osc phase reset and tweak the oscs phases.

You can send one to a lane and the other to a different lane through a 2nd bus and slap a delay plugin there. 100% wet.

[3ee]

Alternatively... have the oscs in parallel lanes and slap a comb filter onto one... the tune control would be the time control.

[hastoy]

Hi 3ee,

I've tried the phase, comb and delay methods you suggest, they all produce stereo but not the way I'm looking for. Try this: offset the osc 1 waveform by 50% to the right by redrawing it on the graph (it's like swapping the right half of the graph with the left) and listen to the sound, that's what I'm looking for but using parameters, not the waveform. See what I mean ?

PS: I forgot to mention that osc1 is hard panned left and osc2 is hard panned right

[hastoy]

after further testing it seems that the Phase/PW knob does what I want, it's the equivalent of delaying the oscillator. If I push the knob to 100% or if I offset the waveform by 50% to the right it sounds exactly the same so I guess I have my answer. Anyway thanks 3ee for your help

[3ee]

Yes, the osc phase option.

the osc phase parameter goes from 0 to 180* (goes to 360* with modulation)
180* is just like moving the wave 50% in one direction.

If I understand correctly, you want:
OSC1 to phase to min and OSC2 phase to max (phase reset engaged)
Pan OSC1 hard L and OSC2 hard R or vice-verso.

A pretty cool side-effect too, if summed to mono it will go down in volume but up an octave.

edit: beat me to it! anyway, you're welcome!

[hastoy]

I tried mixing to mono and indeed it jumps an octave, funny

I can get a very similar stereo effect by using only one osc in dual mode and width set to 100%, the problem with that setup is that Zebra changes the phase using an 8 step round robin. When you play one note repeatedly it sends it all over the place which sounds really odd... I would prefer to have the Width knob simply change the left (or right) phase. Or let us have control over that strange round robin thing.

[3ee]

there's a trick you can try:

In multi wave mode, the osc if reset phase is on, sounds different that maybe you want it to sound.

So you can leave it on and modulate the detune parameter with a very fast envelope decay. (I use MSEGs for that) within the mod matrix, then the (stereo) wave copies will be spread and "frozen".

[hastoy]

sorry I don't get it. set one osc to quad ?? then what does the envelope control ? with what kind of curve ?

[3ee]

You can set both to any of the multi-wave modes...then you need to set up the fast env mod for both oscs detune.
added: if you want to set one osc L and the other R, then you'll get a wider stereo img if you set the detune stereo width to 0.

[hastoy]

what shape is the envelope ?

[3ee]

what shape is the envelope ?

Doesn't really matter since the envelope should be very fast.
maybe logarithmic or linear maybe?

here's a patch example done with Zebra 2.7:
https://app.box.com/s/ivp136gt8htg8lguu5q4

try the ModWhl. ..control super-wave spread with MSEG1 attack control

[hastoy]

Thanks for the patch, I've tested it. I don't want to play with the detuning right now because it changes the timbre. I want to play with the stereo image only.

It was still helpful because I realized that I like the eleven mode best to be used with one side fully phased out. The image gets very wide and rich and still well balanced.

I now also add some Turbulence (osc fx) on each channel to add to the stereo richness. It produces random micro pannings for each harmonic separately, I love this