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- Thread starter argo
- Start date

Rod's project creates an approximation of a true logarithmic pot (almost all 'log' pots sold these days are linear log not truly logarithmic) over a relatively small range (about 20dB)

AudioFreak said:Why do you want an exponential volume pot? Human hearing operates in a logarithmic manner ... exponential is the oposite to logarithmic and so would result in an even worse volume control than a standard linear pot...

.. You are right but I don’t need that pot for volume control but for phase control. I just mentioned Rod's project because he uses simple risistor to turn linear curve into to logarithmic. So I thought one can do vice versa to produce exponential curve.

Argo

With a lin you would use only a small part of the turn range and it would be sort of compressed at one end. You turn it, and to make it twice as loud, you only have to turn it now half so far further. Twice as loud, again half so far (1/4 of the initial turn).

The log gives a more spread out use. Like if you turn it twice as far, it sounds twice as loud.

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