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-   -   AM Radio effect (https://www.dvinfo.net/forum/what-happens-vegas/92097-am-radio-effect.html)

Jeff Harper April 22nd, 2007 07:22 AM

AM Radio effect
 
Is there a method to distort audio in Vegas to create an AM radio effect?

I have Sounde Forge (don't know much about it) , and have searched the web, but haven't found the info on how to create this specific effect.

Thanks

Greg Boston April 22nd, 2007 10:16 AM

If I may suggest. If you want to emulate AM radio, you have to get rid of everything above 8 or 9 khz. Next, you might want to tune to an open spot on the AM band (do this during the day) and record some of the random noise and static crashes to mix with the audio if you want to simulate weak signal reception.

The roll-off in frequency is necessary because adjacent channel spacing limits the maximum frequency you can amplitude modulate the carrier wave with. The upper and lower sidebands are the carrier+mod freq and carrier-mod freq respectively.

-gb-

Jeff Harper April 22nd, 2007 10:40 AM

Don't need the weak effect...I will try eliminating the frequencies you mentioned...thanks!

Bill Westbury April 24th, 2007 11:36 AM

Eliminating the bass and increasing treble and midrange also helps give it that AM feel as well.

Jeff Harper April 24th, 2007 11:45 AM

Thanks Bill!

Glenn Davidson April 24th, 2007 12:01 PM

Also, add some dynamic compression to the voice.

Jeff Harper April 24th, 2007 09:46 PM

Compression did enhance the effect..thank Glenn

Matthew Chaboud April 25th, 2007 12:30 AM

For an added touch.
 
There is an "Analog tape" impulse for Acoustic Mirror that works really well for giving a bit of that boomy warmth to your sound. A tiny bit of distortion on the low end (easiest to do in a multi-track like Vegas) topped off with a bit of phasing can help.


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