Noise reduction in a .wav file
nadams
Posts: 5,877
Trying my hand at a little noise reduction here. I found a cassette tape of my dad's college band (The Back to the Bible Blues Band!), and have digitized it and cut all the tracks up as .wav files. The recording quality of these tracks are HORRIBLE. They do, however, sound as good as they're gonna get... it's just a matter of the tape itself deteriorating (plus the fact that the original recording was done with a small handheld tape recorder, in a coffee house setting). So, I'm using Goldwave and trying to knock out some of the low noise that's in the one recording, as a test. A lot of the tracks are worse yet than this.
Anyone have any experiece in noise reduction? I don't want to lose any of the playing/singing, and I shouldn't have to, because most of the noise is a constant hum or hiss that should be easy to isolate from the actual music...
When I get this cleaned up I'll post it up and see what you think
. My dad played acoustic guitar and sang harmony vocals. It's pretty cool to listen to.
Thanks,
nadams
Anyone have any experiece in noise reduction? I don't want to lose any of the playing/singing, and I shouldn't have to, because most of the noise is a constant hum or hiss that should be easy to isolate from the actual music...
When I get this cleaned up I'll post it up and see what you think
. My dad played acoustic guitar and sang harmony vocals. It's pretty cool to listen to.Thanks,
nadams
Ludicrous gibs!
Post edited by RyanC_Masimo on
Comments
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I've never done it with Goldwave, but I have had some success with the .wav editor in Exact Audio Copy. You go to -tools/process wavs to open the file, change the view, under "display" to "spectral" so that you can "see" the noise, highlight a small portion of it. Choose "process selection", noise profile-- get from selection. Highlight the part where you want to reduce the noise, or the whole file. Choose "process selection, reduce noise. Choose the amount of attenuation-- don't go overboard, use the minimum that you can get away with. You can select "make wave from reduced noise" , if you want to listen to what it took away.
http://www.exactaudiocopy.de
Like I said, I've never tried it with Goldwave, but I'm sure it can do the same thing. I just use Exact Audio Copy alot. Neat little free program.
Jason -
jcaut, thanks for the reply. I'm messing around with exactaudiocopy now and can't seem to clean this up much. There's nothing above about 8,000 hz on this recording, so I was thinking maybe I could just cut that whole upper frequency out to remove the noise up there, but there's also noise down low.
If you could, would you be willing to download the song and see what you can do with it? I know there's not going to be a whole lot to really be done just because of the garbage quality of the original recording.
If you want, here's the link. It's a .wav file, so it's over 40mb...
www.king-nerd.com/dood/temp/track%2010.wavLudicrous gibs! -
I'm fairly familiar with GoldWave, I'd like to try my hand at it, if you don't mind...It's not good, very fundamentally simply not good. - geolemon
"Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs -
Sure, I'll give it a try. The recordings I've worked with are probably quite a bit better than what you've got here. I'll see If I can do anything with it. It will take me a little while to get it: I'm on 256k wireless.
Jason -
neo- go right ahead.
jcaut- thanks... the file is hosted on 1.5mbit so both of you should be able to grab it at the same time at decent speeds.
Just keep in mind what you're working with... it's a 20 year old recording of a live gig in a coffee house
Ludicrous gibs! -
I'm still working on it. EAC is all I've got here at work, and I'm not sure I've improved it much. If you'll PM me an e-mail address, I'll send you what I've got.
Jason -
Thanks, jcaut. I've been messing around some more with EAC as well, and I'm not having much luck. I'm even playing with another track, where there's a tape "hummmmmmm" in the background the whole time. It starts before any of the music starts, so I used that for the noise profile, but it either doesn't reduce it enough, or it goes too far and cuts the bass guitar out, too. I guess that's the problem w/ noise reduction... you're likely to always cut out some of the music, as well as the noise...Ludicrous gibs!
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well, i've done as much as i can with goldwave and a set of perfectly average headphones... i thank you for the opportunity to do something entertaining at work, and i'd be glad to email you my result.
the zip of the cd-quality .wav (cd-quality sampling rate and resolution, that is, not that the track actually uses nearly all of that) comes in at a cool 29.5 Mb...It's not good, very fundamentally simply not good. - geolemon
"Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs -
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i stumbled across this link tonight. if nothing else, it might put you on to links or precise terminology to google for freeware or demo programs. it mentioned a few sharewares down towards the end and said good things about cool edit. i think some folks here use that one.
http://emusician.com/dsp/emusic_noise_busters/
good luck.
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