SOUNDFORGE......

Mescajim

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the problem is this.... if i take a sample from a film for example, there is usually loads of other noises in the background, some sound ok but some sound shit. how do i get rid of them? btw, i have a very basic understanding of all the lingo, so lamens terms would be appreciated.

Thanks

J
 
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Andrea

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I don't know about SF but usually you need to EQ to cut out the rubbish trying not to affect the frequencies you need to hear, I guess. very difficult job sometimes as you might need to sacrify some freqs you want to hear. Also you need good pair of ears and this is good practice indeed.

hope it helps
 

Marc

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It all depends on what the noise/background and the sturcture of the recording is... If the noise is something constant like hiss you're best to use a tool like the noise reduction filter in cooledit/adobe audition. This lets you select a profile of the noise you want to remove [basically you grab a selection of the noise on its own near to the vocal] and then remove it from the whole recording.

Hope this is making sense so far...

If the vocal is recorded in the centre and nosie/background is say instrumental and panned you can have a stab at removing the vocal using some slightly more cunning jiggery pokery have a look here :

http://www.sonicspot.com/guide/vocalremoval.html
http://www.ethanwiner.com/novocals.html

... this isnt perfect but sometimes does the trick !

Its worth noting that noise reduction is never going to be perfect and you're probs gonna have to accept that theres always gonna be some there...

As NDY says u can also try eq'ing but this generally relies on being able to isolate the frequencies that the vocal lies in and noise doesnt. You can try playng around with a parametric eq to surgically remove the noise around the vocal or remove the vocal itself by making a notch at around 1khz [or wherver u think the vocal fundamentally lies] then subtract this filtered wave from the original.

Another technique is to use expansion [the opposite of compression] to increase dynamic range and reduce the noise floor tho this is getting fiddlier by this point ! If you're interested in knowing more I can highly recommend "Mastering Audio - The Art and the Science" by Bob Katz ... Chap12 has some good stuff on noise reduction - its focused ad cd mastering and stuff but the theory and psychoaccoustic bizness is equally relevant.

After you've got rid of noise u might find the vocal is left sounding phasey - u can try to phatten the vocal up using reverb/delay type effects - or alterntaively remove less noise! From a psychoaccousitc point of view leaving some noise in is preferable as the listener will tend to focus on the music/vocal itself [the ear naturally tries to filter noise - especially picking out vocals which our ears are tunes to picking out] - also experiment with placing your vocal over different synths/sounds to mask the noise or shift the listeners focus.

phew! Hope this has made some sense / is useful !

peace + good luck!,
marc
 

RedZebra

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Yeah Sonic Foundry Noise Reduction works for me. You effectively take a sample of the background noise before the speaking, and it subtracts those frequencies from the sample (separating the squeaks from the speaks :Smile3: . It won't get rid of incidental noise though (eg a car door) so you'll have to try to eq that out which could be pretty difficult since a car door closing would have a wide frequency range (ie: some frequencies would be in the same range as the voice freqs). You'd do best to place a kick drum over the door shutting!!!
Also music in the background is a shit and you'll never remove it totally. You can only
- reduce it (eq, noise reduction)
- mask it, (play over it)
- incorporate it (wot he said)
- get another sample :lol:

cheers!

redzebra
 

Mescajim

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wow, thanks guy's that is really helpful. this was actually my first post in this section as i have only just started writing tunes but from now on i will check this area frequently.

Thanks again.

J :Grin:
 

StealthSyst3ms

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Mescajim said:
wow, thanks guy's that is really helpful. this was actually my first post in this section as i have only just started writing tunes but from now on i will check this area frequently.

Thanks again.

J :Grin:
good on this forum innit! :P
 

fluffy nutcase

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If the noise is at the top or bottom end of the frequency spectrum, gate it.
 

Faction

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fluffy nutcase said:
If the noise is at the top or bottom end of the frequency spectrum, gate it.
...or just hi/low-cut the offending area of the frequency spectrum - Waves Linear EQ is good for this as you can get a vertical, brick-wall EQ response very easily if you need to. Personally I'd use a gate for broadband noise that was masked by the program materal, but obvious in gaps between it, rather than frequency-limited noise (although noise of this type does make it easier to set up a freqency-conscious sidechain for the gate).

Just my $0.02 :Grin:
 
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