Shepard-Risset glissando from 'Echoes'

jimknopf · Post by **jimknopf** » Fri Mar 28, 2014 1:47 pm

I would like to use a rising Shepard-Risset glissando effect for the end of Pink Floyd's song "Echoes".

For anyone not knowing what that is, look here:
http://en.wikipedia.org/wiki/Shepard_tone

There is a shepard tone on board of the Kronos (C097), but it does not sound too similar to the the SFX sound in Pink Floyd Echoes, and does not sustain until fading out on key release.

Any help to get closer to the Echoes sound appreciated

Here's the Pink Floyd original:
http://www.youtube.com/watch?v=-KMpZaEF6g0
from 22:15 on
And here's David Gilmpur's live version.
http://www.youtube.com/watch?v=Thwwd3S9rmA
from ~20:30 on

watermelon · Post by **watermelon** » Fri Mar 28, 2014 7:21 pm

woah,very interesting post,i didn't know about this.To my hear i think it's
a white or pink noise generators passed over filters,and maybe the
frequency is raised manually

ronnfigg · Post by **ronnfigg** » Sun Mar 30, 2014 7:29 am

Here's a start- adjust the tempo? I tried it. It's a step in the right direction. Knowing PF and the era they did it in, it probably took days in the studio to get the end product. sounds like Gilmore probably go his hands on the original track.

synthguy · Post by **synthguy** » Sun Mar 30, 2014 2:18 pm

It sounds to me like one of those cheezy organs like a Farfisa run through an EMS synth filter. They had an "autoglide" feature that would bend notes up to an octave below original notes at a given rate to the proper pitch. They did it by hand, and I can't see any way around it, though I've heard that Eventide offers an effect in their expensive units that simulates this.

watermelon · Post by **watermelon** » Sun Mar 30, 2014 5:51 pm

i have also seen gilmour with an oxygene bottle blowing front of a mic,and
it makes like shouting hard (careful with that axe eugene).
imagine,a wind blow is recorded and then played half of the speed,or less,
and then the speed of the reel magneto,drived by hand.
this sound is also like human voices,maybe several wind blows have been
recorded,then mixed

ronnfigg · Post by **ronnfigg** » Mon Mar 31, 2014 2:26 am

This visualization might help...

https://www.youtube.com/watch?v=MShclPy4Kvc

jeremykeys · Post by **jeremykeys** » Mon Mar 31, 2014 2:43 am

Myself, I would use a combi made up of a few Polysix programs, all with more or less the same sound but all with slightly different rise times for the sound. Either that or do just a few with a bunch of different delays on each. I don't really see that as being all that difficult a sound to recreate.
You just need to make certain that you don't have too quick an attack on the first key hit and you need to decide where about you want the pitch to start.

ronnfigg · Post by **ronnfigg** » Mon Mar 31, 2014 3:03 am

good idea jeremy. The sound I believe would have to have an amplitude envelope that comes in slowly and decays away slowly and then just stack a bunch of them up with delayed start times (up to 16 in a Combi?) Of course the pitches could be set with an envelope generator. Pick your own waveform. In the PF version it almost sounds like a human vowel sound. Not sure. if anybody can get this done it would be nice to hear it, even if it isn't exactly like the Pink Floyd version.

phattbuzz · Post by **phattbuzz** » Fri Apr 04, 2014 2:12 pm

https://www.youtube.com/watch?v=ugriWSmRxcM
Here it is in it's basic form. Just keep repeating the video and it will seam like it's a never ending chromatic scale.