Zebra2: blend and morph?

[mabian]

Hello,

even though I'm enjoying very much the new Z2 guide I don't seem to be able to fully understand the difference between blend and morph modes.

If I understand well, the main difference shows when waveindex is not an integer value, so it's an intermediate values between two waveforms.
In other words, I guess both modes act on two waves at most, the one at left and right of current waveindex value (if not integer of course).

Let's say I have a wave index of 1.5.

As far as I have seen, in morph modes the resulting waveform should be mid way between wave 1 and 2 waveforms.

But how is the wave calculated in blend modes instead?

Thanks,
Mario

[mabian]

Maybe each of the 128 partials is the average between their value in wave 1 and wave 2? So, blend mode can be seen as a 128 point morph?

Thanks,
Mario

[Sendy]

In blend modes, a value of 6.5 will be a 50/50 crossfade between wave 6 and wave 7.

In morph modes, as Wavewarp (i.e. the wavetable index) changes from 6 to 7, the data points that make up the waveform/spectral profile move. THAT's why all the waves in the wavetable share the same number of nodes.

Morph modes produce more spectral movement, especially if the nodes are moving horizontally - in fact a simple horizontal movement of a discontinuity is the basis of PWM and the key to it's multiple tone colours.

Blend modes are more subtle and good for more discreet changes and 'smeared out' sweeps, etc.

BTW, if you look at the wave edit window and manually move the Wavewarp knob, you can actually see these changes taking place, and look at the waves inbetween the whole number entries. IMO that's a really neat touch and is one of many details that puts Zebra in the 'outstanding' zone.

[mabian]

Yup, it's like in blend mode there are always 128 points and thus they only move vertically while "warping".

In morph mode the points, being less than 128, can move horizontally as well as vertically.

Right?

Thanks!

- Mario

[Sendy]

Yus, that's it.