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-- quick supersaw question

Posted by messytechie on Jun-20-2006 11:36:

quick supersaw question

just doing an essay

is a supersaw multiple saw waves layered on top of each other in synch with each other or out of synch? I cant find a definition anywhere.

cheers

Posted by KilldaDJ on Jun-20-2006 12:05:

it'll be a real shit supersaw if all oscs were in tune with each other.

Posted by messytechie on Jun-20-2006 12:08:

thats what I figurered. So out of synch yeah?

I got woken up really early today by some builder digging up a wall beneath my bedroom. cheers mate. my head isnt working today.

Posted by Mr.Mystery on Jun-20-2006 13:47:

If I'm not completely mistaken, it's 7 detuned saws.

Posted by LENG on Jun-20-2006 13:49:

if i'm not mistaken, that applies to jp80x0...

Posted by thecYrus on Jun-20-2006 14:08:

sync != tune

but yeah, the single oscs need to be out of sync (and tune)

Posted by messytechie on Jun-20-2006 14:28:

quote:
Originally posted by Mr.Mystery
If I'm not completely mistaken, it's 7 detuned saws.

is that the definition of a supersaw then?

I made a patch with 6 saws, does that not count as a supersaw then?

Posted by Mr.Mystery on Jun-20-2006 14:32:

quote:
Originally posted by messytechie
is that the definition of a supersaw then?

I made a patch with 6 saws, does that not count as a supersaw then?

Like I said, I'm not certain - that's just what I remember.

Posted by messytechie on Jun-20-2006 14:34:

ok, cheers

someone in the know should make a Wikipedia article about it, I was quite shocked to find there wasnt one!!

Posted by DJSentinel on Jun-20-2006 20:52:

A "supersaw" is a term coined by Roland for their JP-8080 and JP-8000 Analog Modelling Synthesizer. The actual sonic phenomenon is what we like to call phase desync. Phase desync is a synthesis technique to achieve a "chorus" sound. It can be done by using a carrier wave "saw oscillator for example," and modulating its signal using a comb filter where the filter cutoff frequency is usually modulated with an LFO, which the LFO's depth (or amplitude) is equal to the saw oscillator's current frequency. It can also be done by using a copied signal and have the copy run throught a delay which the delay's time is modulated again by an LFO where the LFO's depth is equal to the saw oscillator's current frequency. But most of the time the effect is achived by taking two saw oscillators and detuning one plus or minus an amount of cents away from the other's current frequency. What produces the effect is the sum of two "desynced" waves produces a sum wave, which its timbre changes according to the position of the "desynced" wave of the pair. This produces the "chorus effect" you all love and know.

Put that in your paper!
I am a self taught DSP guru "well... for the most part ;-)"

Peace and hope that helped,
DJsentinel

Posted by DJSentinel on Jun-20-2006 21:09:

http://en.wikipedia.org/wiki/Supersaw

Posted by messytechie on Jun-20-2006 21:27:

Very impressed!

Cheers!

Posted by DJSentinel on Jun-20-2006 21:37:

:-D

Sound 101 ;-)

Pce,
DJS

Posted by Hikui on Jun-21-2006 05:23:

That's amazing DJSentinel!!!
Quick question though, what is comb filtering? I have heard that term used before.