#432566 - 09/23/03 04:16 PM
Audio surgery
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Lee Knight
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Registered: 10/19/01
Posts: 1077
Loc: Encinitas,CA,UNITED STATES
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I have a bunch of .wav files of recorded telephone conversions that I need to touch up for a teleservice company. They want to use these for demo purposes to sell their service. Unfortunately the level of the incoming customer is 25dB down from the teleservice agent's level. I've had good success selecting the portions of the file that need a boost, and doing so... along with the noise. Waves X-Noise to the rescue... it worked like a charm. My question... Is there a way I can set up a compressor to raise the level in a defined range (the customer's portion of the conversion) without effect the "good audio" (the agents). The C1, C4, and Mastering Multiband have upward compression but I haven't had luck with this yet. Any suggestions? Thanks for any help offered.
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#432567 - 09/24/03 08:27 AM
Re: Audio surgery
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Mr Darling
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Registered: 04/15/01
Posts: 1313
Loc: The Blue Planet,BELGIUM
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Automation is a great device to do what you're talking about.
i would probably take the time to seperate the two vocals to two seperate tracks so it will be easier to treat them differently.
However, keep in mind that if this intened to be a jingle , it is nice if the costumer does sound like speaking through a phone.
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#432568 - 09/24/03 02:02 PM
Re: Audio surgery
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Lee Knight
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Registered: 10/19/01
Posts: 1077
Loc: Encinitas,CA,UNITED STATES
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Sorry for not being clearer in my original post and thanks for responding. These actually are phone conversations. They don't need to be pristine, they need to be audible... and there are a lot of them on an ongoing basis, so I need some sort of automatic process, like a preset I can create in a plug in. I need to raise the low level audio without touching the high level... This is intended as a sales tool to sell a Call Center's customer service product by showing actual calls. Any ideas?
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#432569 - 09/26/03 12:53 AM
Re: Audio surgery
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Joe Goddard
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Registered: 09/25/03
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Loc: Knoxville, TN
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I'm definitley with Mr. Darling. Have you tried automating you compressor to bypass/unbypass at the correct times to achieve the result your looking for? Or am I still not understanding your thread?
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#432570 - 09/26/03 09:34 AM
Re: Audio surgery
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wireline
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Registered: 10/08/02
Posts: 1646
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What's your main software? I have done this sort of thing many times with Samplitude, which has the ability to separate wavs into nearly limitless objects, then raise or otherwise treat each object accordingly.
_________________________
So What ARE We Gonna Do With 8 Tracks...Fire the Arranger?
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#432571 - 09/26/03 02:00 PM
Re: Audio surgery
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Lee Knight
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Registered: 10/19/01
Posts: 1077
Loc: Encinitas,CA,UNITED STATES
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I get it. Automate the compressor's bypass. I thought you were referring to volume automation. That might do the trick. I'll explore this, though it still requires my hands on.
As I read Waves documentation they refer to something they call "low-level compression" which sounds like what I need. Increase gain of any thing below a certain threshold but ignore anything above that threshold. I've been unable to get this to work as of yet.
I've got to hand this task over to someone without AE chops so the simpler the better. I want to set up a preset based on the typical crazy levels these calls have and enable a neophyte to handle the volume correction.
In other words,
1. open file
2. open preset in comp plug
3. process and save
I may be asking too much, in which case I'll be the hands on person, which I'm not too tickled about.
I use PT and Sound Forge. I'm thinking Sound Forge with a Waves C1, C4 or the Mastering MB compressor. Followed by X-Noise...
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#432572 - 09/27/03 06:27 AM
Re: Audio surgery
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Mr Darling
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Registered: 04/15/01
Posts: 1313
Loc: The Blue Planet,BELGIUM
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What you could try is :
Determine the avarage difference in volume between the two (lets say its 15db)
2. set a compresor that will redcue 15db on the loud vocals
3. set the tresh that it will not effect the quite part.
4. add 15db gain
Now in tehory the loud passes will come unchanged (depend on the quality of your compressor - 15db ducking + 15db gain) and the quite passes will get 15db louder.
I will not really suggest this to a musical context but I think it should work on a mono (un sung) voice.
Of course you realize that with 15db gain, the noise of the low passes will be very high.
HTH
Danny
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#432573 - 09/27/03 11:49 AM
Re: Audio surgery
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philbo_Tangent
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Registered: 10/08/00
Posts: 1175
Loc: Iowa
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The noise level is going to be relatively constant in the original track... so, go back to it, and use 2 or 3 passes of light noise reduction on it (10 or 12 db each time). This will de-noise both parts for subsequent work.
Then dice up the track and pull all the quiet stuff to a new track, and apply downward expansion (to kill any remaining noise and artifacts) and compression with makeup gain (to bring the level up).
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