siren effect

Does anyone know how to create a ‘siren effect’ with the slim phatty. I’ve only had my slim phatty for a short while and it would save me a lot of time, as i need to use it with my band asap. Many thanks.

Well, they are many kind of sirens (dub siren, police siren, …) but basically it’s as simple as an lfo modulating the pitch of the OSC.

… or a slow envelope! :slight_smile:

IIRC, the Moog user PHC has some tutorial material on knobz.net about this…

Here it is:

http://knobz.net/sfx1.html

It was done with an LP, so you can do it with the SP.

Many thanks for reply’s to my request for a siren effect.