db volume scaling

[Jeff Mitchell]

Tim Blechmann wrote:
>>> ... no matter, if i am currently listening at -6, -12 or -20 db ...
>> ... no matter, if you are currently listening at 20, or 60, or 80%
> 
> you don't get my point, do you?

I do.  But I'm struggling with the validity of it.

>>> question two was more a rhetorical question to show, that amarok's
>>> percent scale does not work well for a quantitative description of volume.
>> Question two is bogus anyways.  Adjusting Amarok's volume slider changes
>> Amarok's relative volume level.  Regardless of whether it is in dB or
>> percentage, there are other factors (multiple ALSA sliders, for
>> instance) that affect the actual output audio volume.  This also varies
>> by sound card, among other factors.  In other words:
>>
>>> - when setup A is 10 db louder than setup B (setup A may be the studio,
>>> setup B the living room). how much do i have to increase the volume in
>>> amarok's percent scale to get the same sound pressure level, if my
>>> default playback volume is (a) 20% or (b) 50%?
>> Assuming everything is equal -- sound card, system, all other sliders
>> and equipment and factors, so that Amarok's volume level is the *only*
>> difference -- you need to increase the volume on setup B until the
>> percentage on setup B matches the percentage on setup A.  (Duh.)
> 
> sure, but i am asking you, how much that is?

Look at the two volume sliders, and let me know.

--Jeff

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