Re: Audio taper or linear taper pots
Pots are pots, how do you wire them makes them a volume or a tone control.
Audio have logarithmic taper and, they are usually the natural choose because this is the way as our ears hear.
Anything little change close to our audition umbral, is clearly heard as a volume increase but, the more we move to our painful umbral, you will need every time more difference in volume to hear the change (when it's loud, it's loud; just if you double the energy of the input sound, you will sense any change).
So audio pots work in a similar way.
By, example (not necesarely accurate), you could get this percentaje of volume for each type (A = Logarithmic, audio; B = linear):
Dial | % A | % B
10 | 100 | 100
09 | 95 | 90
08 | 85 | 80
07 | 70 | 70
06 | 50 | 60
05 | 25 | 50
04 | 12 | 40
03 | 07 | 30
02 | 03 | 20
01 | 01 | 10
00 | 00 | 00
To perceive a clear change in loudness, you need a change of plus/minus 3dB (another logarithmic scale here). Audio volume pots better suit this way of sensing sound.
But, an audio taper will not leave you to lineraly determine the amount of highs you want to roll off and, many people preferes a better control about how its tone control works. This is usually achieved with a linear pot, to avoid going from 100 to near Zero using just a third of the dial (what makes useless the rest of numbers).
To get audio o linear is up to each one, depening on what makes more sense for you but, those are the rules that work the best for most of people: audio for volume and linear for tone.