Sorry if my post was unclear. 100% (aka 40 on the player display, 11
on the web interface) is still -0dB.
The older volume mapping was neither linear nor logarithmic, rather
it was the best mapping we could do with only 8 bits of resolution
and still have audible differences at every step from 0 to 40 on the
display. So, the steps at very low levels were audibly large and at
high levels where audibly small.
What we changed was that we added higher resolution volume control
(fixed point 16.16 multiplier). We did not change the 24 bit output
resolution.
With the new higher resolution control, we're able to make the volume
control logarithmic where 1% steps down are -0.5dB.
This means that there's a difference between the old mapping and new
one and it's generally at a lower volume than before.
Sean also recently added a preamp output level setting which sets the
maximum analog output level, so when we're at 100% the voltage level
can be adjusted lower in the case that your analog input to your
amplifier/preamp needs a lower maximum value. That setting is also
in dB.
On Oct 1, 2005, at 1:46 AM, seanadams wrote:
I'll double check this - I think this is just a misunderstanding of
that
post.
if 100% volume is not -0d then it's broken, but I don't think that's
the case.
--
seanadams
_______________________________________________
audiophiles mailing list
[email protected]
http://lists.slimdevices.com/lists/listinfo/audiophiles
_______________________________________________
audiophiles mailing list
[email protected]
http://lists.slimdevices.com/lists/listinfo/audiophiles
