On Sun, Aug 15, 2010 at 09:50:32AM +0100, Gordon JC
Pearce wrote:
On Sat, 2010-08-14 at 22:51 +0200,
fons(a)kokkinizita.net wrote:
On Sat, Aug 14, 2010 at 12:19:33AM -0700, Niels
Mayer wrote:
The big issue with having the full 144dB range is
that the "business"
end of the slider is all at the top,
I've never seen a real fader that has any practical resolution
below -80 dB: the next tick, 5mm or so down, is 'Off'. And most
don't even go down that much.
I'm sure most people on here know this, but the decibel scale is a
relative logarithmic scale.
I'm sure most people know that. And what is supposed to follow from
this ? Most faders will be calibrated +10 or +15 dB at the top, so
if the last tick is -80 dB, that means a range of 95 dB. More than
that is pretty useless. The 144 dB range of the chip just reflects
the fact that the gain is set by a 24-bit integer value, that's all.
Saying "-80dB" means that whatever went
in
was attenuated by 80dB, or 1x10E8
1e8 in power, 1e4 in amplitude.
- if you put in a 1V signal, a 0.01µV signal will result.
0.1 mv actually.
Ciao,
In my (limited) experience a practical mixing fader, as opposed to a
gain control, doesn't need more than 60dB range, and a L-R panning
control, even less - probably as little as 40dB.
--
Will J Godfrey
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.