[CM] RFT:Request for a trick ;)

[Meino Christian Cramer]

Hi,

 is there any way to achieve the following effect:

 I want to "fill" a sound -- for example a human voice -- with another
 frequency. Sometime in TV-movies one can hear such effect for example
 in the TV-series "Stargate" if a symbiont speaks.

 But I dont want to make the voice to speak
 ssssslllllloooooooowwwwwweerrrrr ;)

 Another example how to use this would be to tune music an octave
 lower without changing its speed.

 Is there a way to achieve this ?

 Thank you very much for any help in advance !

 Kind regards,
 Meino Cramer