Audio Cleaning at DVinfo.net

Ron Stoole · September 30th, 2002, 01:47 PM

I recently did a shoot and found that when I used the power pack (instead of the battery) I got an AC hum in the background on the audio. It was an interview shoot, so I really have to get rid of it.

Can anyone advise me if there is a company out there that processes audio files, or a really good software program that will do the job? I know there are inexpensive programs that will get rid of cracks, hisses and pops, but this is a low grade hum.

Thanks for any help,

Ron

Didi Schoeman · September 30th, 2002, 03:06 PM

Dear Ron

Final Cut Pro 3 has a hum remover for electrical buzz noise which will take care of your problem. You will however need a Mac computer to run the software which I might add is an awesome editing package, it compliments the XL1 exeptionally well!

Didi Schoeman

Jeff Donald · September 30th, 2002, 06:47 PM

Ron,

If the shot is fairly short it wouldn't cost too much to have your audio fixed professionally. Certainly in Philly there would be dozens of studios that could do the work. Time to let your fingers do the walking (through the yellow pages). The service is sometimes referred to as audio sweetening. But if you describe your troubles a studio should be able to tell you if they do that kind of work. Good luck.

Jeff

Don Palomaki · October 1st, 2002, 07:16 AM

The better audio editing software provide filters that can be used to remove hum and other noise. Check the CoolEdit products from Syntrillium, or the Sound Forge products to name a couple.

Peter Koller · October 1st, 2002, 08:09 AM

Just because that happened to me, too: Can one avoid picking up that hum when the camera is plugged in? Or is the only way to run it from the batteries?

PS: I removed the hum with Soundforge.

Cheers, Peter

Don Palomaki · October 1st, 2002, 07:19 PM

Picking up hum may relate to how wire are routed around the camcorder, and possibly a ground loop if other external devices were connected to the camcorder (e.g., mixer, monitor, etc.) Also, using unbalanced audio connections could give hum pickup. Running down sources of hum can be a bear, so using battery power may be the easiest solution.

September 30th, 2002, 01:47 PM	#1
Ron Stoole Regular Crew Join Date: Apr 2002 Location: Lancaster, PA Posts: 27	Audio Cleaning I recently did a shoot and found that when I used the power pack (instead of the battery) I got an AC hum in the background on the audio. It was an interview shoot, so I really have to get rid of it. Can anyone advise me if there is a company out there that processes audio files, or a really good software program that will do the job? I know there are inexpensive programs that will get rid of cracks, hisses and pops, but this is a low grade hum. Thanks for any help, Ron

October 1st, 2002, 08:09 AM	#5
Peter Koller Regular Crew Join Date: Feb 2002 Location: Brunn am Gebirge, Austria Posts: 161	Just because that happened to me, too: Can one avoid picking up that hum when the camera is plugged in? Or is the only way to run it from the batteries? PS: I removed the hum with Soundforge. Cheers, Peter __________________ Peter Koller Vienna, Austria http://www.kop11.com

September 30th, 2002, 03:06 PM	#2
Didi Schoeman Regular Crew Join Date: Sep 2002 Location: Tzaneen South Africa Posts: 76	Dear Ron Final Cut Pro 3 has a hum remover for electrical buzz noise which will take care of your problem. You will however need a Mac computer to run the software which I might add is an awesome editing package, it compliments the XL1 exeptionally well! Didi Schoeman

September 30th, 2002, 06:47 PM	#3
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	Ron, If the shot is fairly short it wouldn't cost too much to have your audio fixed professionally. Certainly in Philly there would be dozens of studios that could do the work. Time to let your fingers do the walking (through the yellow pages). The service is sometimes referred to as audio sweetening. But if you describe your troubles a studio should be able to tell you if they do that kind of work. Good luck. Jeff

October 1st, 2002, 07:16 AM	#4
Don Palomaki Wrangler Join Date: Sep 2001 Location: Northern VA Posts: 4,489	The better audio editing software provide filters that can be used to remove hum and other noise. Check the CoolEdit products from Syntrillium, or the Sound Forge products to name a couple.

October 1st, 2002, 07:19 PM	#6
Don Palomaki Wrangler Join Date: Sep 2001 Location: Northern VA Posts: 4,489	Picking up hum may relate to how wire are routed around the camcorder, and possibly a ground loop if other external devices were connected to the camcorder (e.g., mixer, monitor, etc.) Also, using unbalanced audio connections could give hum pickup. Running down sources of hum can be a bear, so using battery power may be the easiest solution.