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Author Topic: audio/log or linear  (Read 4763 times)

Ochaye

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audio/log or linear
« on: August 04, 2010, 08:01:38 PM »
oh man tearing my hair out........i want to upgrade my les paul and mules with some new pots and caps

been researching most of the day i have discovered that audio/log are best suited for tone and linear best for volume.

oh wait a mo,audio/log for vol and linear for tone........


whaddya say guys?

soulside

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Re: audio/log or linear
« Reply #1 on: August 05, 2010, 04:06:50 AM »
linear is as the name suggests a linear increase in volume/tone. audio/log is more of a curved increase.  

you can find more info here - http://sound.westhost.com/pots.htm

EDIT: ignore this, I just re-read your post and you said you've been researching it already
« Last Edit: August 05, 2010, 08:50:47 AM by soulside »

Dmoney

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Re: audio/log or linear
« Reply #2 on: August 05, 2010, 04:32:59 AM »
i just use audio taper all round in my les paul.
audio taper for volume at least.

soulside

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Re: audio/log or linear
« Reply #3 on: August 05, 2010, 08:47:59 AM »
you could try both, I doubt there is going to be much noticeable difference.  Audio/log pots will probably give a more gradual increase in volume.

only way to really determine if it works for you is to try both configurations and see if you notice a difference and if you do which configuration you prefer.

I don't think there is really a right or wrong way to go about this one, just different ways

Twinfan

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Re: audio/log or linear
« Reply #4 on: August 05, 2010, 09:05:49 AM »
i just use audio taper all round in my les paul.

+1

Works for me...

ToneMonkey

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Re: audio/log or linear
« Reply #5 on: August 05, 2010, 09:45:54 AM »
Also remeber to make sure the shaft length is OK for an LP and that your knobs will fit back on........ not that I'd ever forget this and order the wrong ones  :oops:
Advice worth what you just paid for it.

BigB

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Re: audio/log or linear
« Reply #6 on: August 05, 2010, 12:53:49 PM »
oh man tearing my hair out........i want to upgrade my les paul and mules with some new pots and caps

been researching most of the day i have discovered that audio/log are best suited for tone and linear best for volume.

oh wait a mo,audio/log for vol and linear for tone........

whaddya say guys?

Was about to correct the first assertion about "linear best for volume", which is of course total nonsense (yet it's something you read on some online guitar parts shops, duh  :().

Audio tapers (=> log) where invented specially for audio volume, since the human ear's response to air pressure level is actually a log curve. Using linear pots for volume, you'd have 50% of the volume drop in the first 10% or so of the pot's action, making it almost as useful as a mere on/off switch. Ok, perhaps a bit better, but not something you'd want IMHO.

FWIW, the average "log" pot being something like 60/40 (yeah, not THAT log indeed), it doesn't fully compensate the human ear's response curve. 70/30 or even 80/20 would be better, but good luck finding such a beast.

wrt/ tones, most audio devices use linear pots,  but I've seen audio tone pots on quite a few guitars, including at least one of mines, and I'm not yet sure it makes such a difference here (I'd have to try out both solutions on the same pup of the same axe, but I really don't expect this to be more than a micro-optimization at best). 

HTH
Have: Crawlers, BGF 50/52s, Mules, ABomb, RiffRaff
Had : Slowhands (n&m), Trilogy (b)

Ochaye

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Re: audio/log or linear
« Reply #7 on: August 05, 2010, 04:54:53 PM »
oh man tearing my hair out........i want to upgrade my les paul and mules with some new pots and caps

been researching most of the day i have discovered that audio/log are best suited for tone and linear best for volume.

oh wait a mo,audio/log for vol and linear for tone........

whaddya say guys?

Was about to correct the first assertion about "linear best for volume", which is of course total nonsense (yet it's something you read on some online guitar parts shops, duh  :().

Audio tapers (=> log) where invented specially for audio volume, since the human ear's response to air pressure level is actually a log curve. Using linear pots for volume, you'd have 50% of the volume drop in the first 10% or so of the pot's action, making it almost as useful as a mere on/off switch. Ok, perhaps a bit better, but not something you'd want IMHO.

FWIW, the average "log" pot being something like 60/40 (yeah, not THAT log indeed), it doesn't fully compensate the human ear's response curve. 70/30 or even 80/20 would be better, but good luck finding such a beast.

wrt/ tones, most audio devices use linear pots,  but I've seen audio tone pots on quite a few guitars, including at least one of mines, and I'm not yet sure it makes such a difference here (I'd have to try out both solutions on the same pup of the same axe, but I really don't expect this to be more than a micro-optimization at best). 

HTH

yeah it was an online uk parts shop that said audio for tone and linear for volume.confused

BigB

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Re: audio/log or linear
« Reply #8 on: August 06, 2010, 11:03:09 AM »

yeah it was an online uk parts shop that said audio for tone and linear for volume.confused

I already spotted this über stupidity on at least two french online parts shops. I bet they blindly copied it from somewhere else (possibly the uk shop you mention FWIW).

Don't know if I should bother to contact these guys and tell'em... But well : http://xkcd.com/386/
Have: Crawlers, BGF 50/52s, Mules, ABomb, RiffRaff
Had : Slowhands (n&m), Trilogy (b)