DnB Source of the 'Alarm' Sample that you hear in 99.9% of Ragga / Jungle?

[strove]

Whats up Junglists
I have been meaning to ask this for ages now haha does anyone know the name / origination of that alarm sound you hear in so many tracks?

Although this isn't really a DnB track, Example at 20:28

Also side-note - this is a pretty sweet mixtape. Big ups to Mayawaska

 

[azzybish]

i saw a post on here a while back of the hardware that it was originally from but i cant remember im afraid.

afaik it's just a square wave thats being automated on an octave interval quickly

 

[eastfuse]

It's a dub siren -

Now there are vsts that do the job.

 

[strove]

Amazing! Thanks

 

[MDCNMN]

I use a free vst called dub siren http://www.vst4free.com/free_vst.php?id=184
I believe the sound you want is one of the zulu warrior presets