[sdiy] Formula for Audio & Log-taper pots?

[Glen]

I've read that audio taper pots have 15% resistance at the half-way point
in their rotation, and that log taper pots have 10% resistance at the
half-way point. Is this generally correct? I seem to remember that there
was more than one taper being used by some engineers for audio, but I think
these are the common ones.

Does anyone know of a more precise way to describe the "curve" of either
the resistance vs rotation, or more importantly, the attenuation vs
rotation? I would really like to find a formula to calculate either the
resistance or the signal attenuation for a given amount of rotation.

thanks,
Glen
-------------- next part --------------

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.657 / Virus Database: 422 - Release Date: 4/13/04