Slight OT: Forbidden Planet

[Doyle]

Sean Costello wrote:

> Matthew Helt wrote:
> >
> > Hello again,
> >
> >   Does anyone know much about the instruments used to compose the
> > soundtrack for Forbidden Planet? I have looked around and wasnt able to
> > find much info other than something about using a Theremin... Asides
> > that, what else what used? I've been told some "telsa technology" was
> > used, something about a large device that's played by striking a metal
> > conducter against a series of coils...
>
> I think that most of the sounds were made using homemade tube circuits
> (oscillators and such). Often, the circuit would be recorded in the process of
> self-destructing. Once recorded, the sounds would be subjected to extreme tape
> manipulation - echo, slowing down by factors of 100, etc. Many of the sounds are
> very similar to what I have obtained by creating feedback loops with a mixer and
> various chains of effect devices (phasers, reverb, analog delays, etc.).
>
> Sean Costello

  I've managed to reacreate very similar sounds using a ramp generator, 1 LFO and 2
oscillators, the ramp and lfo controlling FM or AM of the oscillators (or
controlling each other).