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[average_male]

Hello Savy Kronos Sound Design Engineers,

Hoping to get your help on something I came across in a video. This guy describes how he made the Thriller Theremin sound, but in doing that, he made a sound/effect I was trying to replicate for some time. Here is the video at the time stamp he goes into the details of setting up OSC1 + OSC2 (plus a filter?) where OSC2 feeds into OSC1 for the Thermin sound (but that Thermin sounds wasn't what interested me):

https://youtu.be/Qf_x97bfxQk?t=271

BUT, it is at this point of the video (noted below) was the sound/effect I was trying to replicate (the "trill" with the frequency change) the sound between 5:48 and 5:51 including the way he altered the frequency, as in:

https://youtu.be/Qf_x97bfxQk?t=348

Any recommendations to point me in the right direction would be appreciated. I did try to setup two oscillator (OSC1 and OSC2) using the Mod7 engine (trying to follow what was noted in the video) but ended up making cat strangulation sounds.

Thanks.

[KK]

That's pretty basic. Use the AL-1 or MS-20 engine instead of the more complicated MOD7. Use a LFO set to square wave to modulate the pitch of OSC1 set to square or triangle wave.

[average_male]

[KK]

Hi there,

Under OSC/Pitch | Mixer, set to 0 the OSC Level you don't need.

Then under OSC/Pitch | Pitch EG/Mod, in OSC1 & Sun OSC Pitch Modulation, set the AMS to the LFO you want, then Intensity to -3,4 in order to hear, let's say, a fifth above the played note.

(Optional) With a square wave as LFO pitch modulation, if you want the initial note to sound at its correct pitch (as on the key played on the keyboard), go to Step Seq/LFO | LFO1 (presuming you choose LFO1 for pitch modulation) and select -99 for the Offset. This way, when you play for example a G on the keyboard, the initial pitch at the beginning of the square wave will be equal to the key played. So for this example the correct G, then D above it for the given values, instead of notes a fifth apart but both below and above the key played.

(Optional if you want to experiment and understand what happens) : Note that you may ask yourself, why using negative values to reach a frequency above the initial note. It is simply because when you select AL-1 as a new instrument in an empty program, the LFO square wave at 0 degree starts at its maximum, then goes down. If you would select similar but positive values for the two parameters set to negative previously discussed and instead select 180 degrees for the LFO Start Phase, you will end up with exactly the same sound.

[average_male]

[KK]

You are welcome !

BTW in case you didn't know, if you use a PC and you happen to like old modular synth with lots of knobs, you could download the great freeware designed by a fellow guy here called Chrutil, namely his AL-1 editor.

http://chrutil.com/kronos/

With it, you can see the AL-1 as a gigantic modular synth equivalent and modify everything in real time. The freeware also transforms into a Polysix editor as well if you choose a program with the Polysix engine. Super clever guy !

[average_male]

[KK]

[average_male]