AM Radio effect at DVinfo.net

Jeff Harper · April 22nd, 2007, 07:22 AM

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

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.

April 22nd, 2007, 07:22 AM	#1
Jeff Harper Inner Circle Join Date: Jun 2005 Location: Cincinnati, OH Posts: 8,425	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

April 25th, 2007, 12:30 AM	#8
Matthew Chaboud Regular Crew Join Date: Sep 2006 Location: Chicago, IL, USA Posts: 93	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.

April 22nd, 2007, 10:16 AM	#2
Greg Boston Wrangler Join Date: Oct 2003 Location: DFW area, TX Posts: 6,117 Images: 1	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-

April 22nd, 2007, 10:40 AM	#3
Jeff Harper Inner Circle Join Date: Jun 2005 Location: Cincinnati, OH Posts: 8,425	Don't need the weak effect...I will try eliminating the frequencies you mentioned...thanks!

April 24th, 2007, 11:36 AM	#4
Bill Westbury New Boot Join Date: Feb 2007 Location: Florida Posts: 19	Eliminating the bass and increasing treble and midrange also helps give it that AM feel as well.

April 24th, 2007, 11:45 AM	#5
Jeff Harper Inner Circle Join Date: Jun 2005 Location: Cincinnati, OH Posts: 8,425	Thanks Bill!

April 24th, 2007, 12:01 PM	#6
Glenn Davidson Major Player Join Date: Dec 2005 Location: Nevada City, California Posts: 499	Also, add some dynamic compression to the voice.

April 24th, 2007, 09:46 PM	#7
Jeff Harper Inner Circle Join Date: Jun 2005 Location: Cincinnati, OH Posts: 8,425	Compression did enhance the effect..thank Glenn