Removing audio buzz

Post » Thu Feb 19, 2009 10:40 am

I am a novice at such things and would appreciate help. I have SF 9.0 and record sermons--so voice only in mono. I have a particular recording that has a terrible audio buzz throughout that I would like to remove if possible. What can I do to achieve this, if at all? Thank you for the help.
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Eoh
 
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Post » Thu Feb 19, 2009 7:35 pm

Look in Menu | Tools | Noise Reduction; if you click on ? mark top right corner you'll get help from the manual.
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Lexy Dick
 
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Post » Thu Feb 19, 2009 11:47 am

My version doesn't have noise reduction. I downloaded some filters for the EQ and played around but the buzz is overpowering and nothing seemed to help at all. I guess I am stuck. Thanks for the help.
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Alexandra walker
 
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Post » Thu Feb 19, 2009 11:48 am

Upload a 30 sec sample somewhere. No promises, but someone may have some ideas for you.
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Adrian Morales
 
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Post » Thu Feb 19, 2009 7:02 pm

You said:
My version doesn't have noise reduction. I downloaded some filters for the EQ and played around but the buzz is overpowering and nothing seemed to help at all. I guess I am stuck. Thanks for the help.

My reply:
SF9 comes with Noise Reduction as part of the package. If you have SFAS that might not have it. Either way it would help to know what type of buzz - 60 Hz, broadband, or what. If it's 60 Hz you could try a series of narrowband filters centered at 60HZ and it's harmonics. If it's more broadbanded what you could do is to enable a filter and set it to boost instead of cut. Sweep through the frequency spectrum until you find the spot the buzz gets the loudest and then switch the filter to cut and you should be good to go. The Sony Paragraphic EQ plugin in SF has a number of presets that may be able to help - for example it has one to deal with 60Hz.

Jack
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Setal Vara
 
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Post » Fri Feb 20, 2009 12:44 am

If you have SFAS (NR not included) then you could download Audacity (free) which has a very basic noise reduction plug in. Its definitely basic but it may work and certainly worth a try.
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Arrogant SId
 
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Post » Thu Feb 19, 2009 11:34 am

I do have SFAS 9.0... sorry for the confusion.

I uploaded a sample here: http://www.thebibleonly.org/Buzzsample-1.mp3

Like I said, I am pretty much a novice at this stuff. I downloaded filters from here: http://www.digitalfaq.com/guides/video/restore-audio-soundforge.htm

and played around a bit but I just don't know enough about it to do anything good.

I loaded an image of the SF screen with this sample here: http://www.thebibleonly.org/Buzzsample-image.jpg


Any help is greatly appreciated... as well as your patience! Thank you.
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Devin Sluis
 
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Post » Thu Feb 19, 2009 8:46 pm

Sounds like buzz from bad flourescent tubes. The buzz is scattered all over the spectrum and quite loud, so a simple 60Hz stack will not do that much good.

Best bet (but not cheap) is Izotope RX.
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Jacob Phillips
 
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Post » Thu Feb 19, 2009 6:27 pm

We found a bad cable to the mic input on the camera. I tried the 60Hz filter and like you said, didn't do much. The best filter was one for A/C fan noise but still not much help. What is Izotope RX?

Thanks for the help.
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pinar
 
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Post » Thu Feb 19, 2009 12:28 pm

What is Izotope RX?

It is noise reduction software. Google is your friend.
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Chloe :)
 
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Post » Thu Feb 19, 2009 6:57 pm

WOW! That would be nice to have but not sure how much I would use it, really. I would prefer updating my Vegas program! LOL.

Thanks for the help musicvid!
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Veronica Flores
 
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