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Gain control

 
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jimbo1421



Joined: 29 May 2007
Posts: 4

PostPosted: Tue May 06, 2008 4:31 am    Post subject: Gain control Reply with quote

Hello,

I am finally getting back to my vinyl conversion project with Amadeus Pro. I am using an iMic into a MacBook Pro. It seems that the gain control sliders actually work in increments of 3 db and jump from 6.0 db to 9.0 db. The upper level results in a lot of clipping, the lower level seems too low. I think I am correct that the recording level should be as high as possible without clipping; 7 or 8 db would be about right but doesn't seem to be available. Am I missing something? Is this a hardware limitation? Is there another way to get a 1-2 db higher recording level?

Jim
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Martin Hairer
Site Admin


Joined: 08 Nov 2006
Posts: 1612

PostPosted: Tue May 06, 2008 8:39 am    Post subject: Gain control Reply with quote

Quote:
I am finally getting back to my vinyl conversion project with
Amadeus Pro. I am using an iMic into a MacBook Pro. It seems that
the gain control sliders actually work in increments of 3 db and
jump from 6.0 db to 9.0 db.

That depends on the hardware / driver. Some don't allow any gain
control at all, some allow smooth control, and some allow only for a
few increments.

Quote:
The lower level seems too low. I think I am correct that the
recording level should be as high as possible without clipping

You are correct in principle, but recording 2 or 3 dB lower than the
absolute optimal is good practice anyway, since otherwise there's a
good chance of having some clipping. It is very easy to normalise
afterwards. The quality of most recordings is anyway by very far not
good enough to try to squeeze out the last dB of dynamic range. Regards,

Martin

HairerSoft
http://www.hairersoft.com/


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jimbo1421



Joined: 29 May 2007
Posts: 4

PostPosted: Sun May 11, 2008 6:04 am    Post subject: Reply with quote

Thanks, Martin. You're probably right.

Now on to the next question...
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