Whats the effect on the radio coms in Battlestar galactica series?

perx · 25th July 2007

time for me to make one of these kinda threads aswell... ;-)

What kind of effects do you think are used in the battlestar galactica serie when they talk to each other over the radio?

sounds like a high pass filter and some form of ring mod to me.. What you think?

resound · 25th July 2007

Definitely ring modulation. Gotta love those sidebands for that retro-chic voice effect.

tINY · 26th July 2007

It's an old trick from radio days that you can do digitally, now.

The ring modulator is simply folding back undersampled frequencies to the base band (oversampled, too - if you are doing undersampled measurements).

Basically, you just feed a full band signal without a proper anti-aliasing filter into an ADC that is sampling at 10-30kHz. You should have been at last years AES convention in SF, there was a demonstration by Stanley Lipshitz.

-tINY

25th July 2007	#1
perx Lives for gear Joined: Nov 2006 Posts: 502 Thread Starter	Whats the effect on the radio coms in Battlestar galactica series? time for me to make one of these kinda threads aswell... ;-) What kind of effects do you think are used in the battlestar galactica serie when they talk to each other over the radio? sounds like a high pass filter and some form of ring mod to me.. What you think?

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25th July 2007	#2
resound Gear addict Joined: Dec 2005 Posts: 398	Definitely ring modulation. Gotta love those sidebands for that retro-chic voice effect.

26th July 2007	#3
tINY Gear Guru Joined: Jul 2004 Location: Orygun Posts: 10,234	It's an old trick from radio days that you can do digitally, now. The ring modulator is simply folding back undersampled frequencies to the base band (oversampled, too - if you are doing undersampled measurements). Basically, you just feed a full band signal without a proper anti-aliasing filter into an ADC that is sampling at 10-30kHz. You should have been at last years AES convention in SF, there was a demonstration by Stanley Lipshitz. -tINY