Re: [LAU] Questions on New Recording Gear

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From: <fons@...>
To: <linux-audio-user@...>
Date: Tuesday, January 26, 2010 - 9:32 pm

On Tue, Jan 26, 2010 at 11:02:58AM -1000, Joel Roth wrote:

> Just to underline that, gain controls are usually pots

That would be true for most mixer faders and
for normal volume controls. But in that case
it's not done as in your drawing, but by using
the pot as a voltage divider:

____
in |
r
r
r______
r out
r
r
____|______
ground

The exception is the gain control in a mic
preamp where the pot is normally used as a
variable resistance (as in your drawing),
but there it is part of the feedback circuit.
There's normally no attenuation in the signal
path (except for a -20dB pad or something
similar).

Ciao,

--
FA

O tu, che porte, correndo si ?
E guerra e morte !
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Messages in current thread:
[LAU] Questions on New Recording Gear, Ectropic Harmony, (Mon Jan 18, 9:32 am)
Re: [LAU] Questions on New Recording Gear, Scott Ecker, (Mon Jan 18, 5:23 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Fri Jan 22, 9:22 pm)
Re: [LAU] Questions on New Recording Gear, micromoog, (Tue Jan 26, 5:05 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Mon Jan 25, 5:41 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Tue Jan 26, 4:46 am)
Re: [LAU] Questions on New Recording Gear, drew Roberts, (Tue Jan 26, 12:39 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Tue Jan 26, 4:05 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Tue Jan 26, 6:33 pm)
Re: [LAU] Questions on New Recording Gear, Ectropic Harmony, (Tue Jan 26, 9:20 pm)
Re: [LAU] Questions on New Recording Gear, Karl Hammar, (Tue Jan 26, 9:39 pm)
Re: [LAU] Questions on New Recording Gear, Edgar Aichinger, (Wed Jan 27, 9:44 pm)
Re: [LAU] Questions on New Recording Gear, David Santamauro, (Wed Jan 27, 10:12 pm)
Re: [LAU] Questions on New Recording Gear, Joel Roth, (Tue Jan 26, 9:03 pm)
Re: [LAU] Questions on New Recording Gear, , (Tue Jan 26, 9:32 pm)
Re: [LAU] Questions on New Recording Gear, drew Roberts, (Tue Jan 26, 5:42 pm)
Re: [LAU] Questions on New Recording Gear, Scott, (Tue Jan 26, 4:51 pm)
Re: [LAU] Questions on New Recording Gear, Scott Ecker, (Tue Jan 26, 4:43 pm)
Re: [LAU] Questions on New Recording Gear, Paul Davis, (Mon Jan 25, 10:47 pm)
Re: [LAU] Questions on New Recording Gear, Emiliano Grilli, (Mon Jan 18, 10:26 am)
Re: [LAU] Questions on New Recording Gear, Monty Montgomery, (Tue Jan 26, 2:33 am)