On the sound of the girl's voice in Poltergeist:
The whole interview can be read here: http://www.factmag.com/2015/10/28/alan- ... m-new-yorkSo I took the little girl’s voice and put it backwards through the tape recorder into some spring reverb and fooled with the speeds on the eight-track and recorded two backwards passes. Then I put another version going out to the surround, so that each word kind of passed through the room a bit like a Doppler effect. I turned that in and I was saved – that became the effect in the movie. Now that’s iconic – whenever you do a voice from another dimension that’s exactly the sound you do, you hear it in a million movies. I eventually talked to the engineer from that Led Zeppelin session and it was actually headphone bleed – there was another take running on headphones on the floor and it bled into Robert Plant’s recording. They loved it so they kept it.