[sdiy] Pan laws - logarithmic or linear? (SSM2164 stereo panning)

David G. Dixon dixon at interchange.ubc.ca
Mon Feb 15 07:13:29 CET 2010


...

> So we have:
> 
> a*log(1/b + c) = 0
> a*log(2/b + c) = 0.708
> a*log(3/b + c) = 1
> 
> The first equation can be simplified:
> 1/b + c = 1
> a*log(2/b + c) = 0.708
> a*log(3/b + c) = 1
> 
> Plug into the other two equations:
> 1/b + c = 1
> a*log(1/b + 1/b + c) = 0.708
> a*log(2/b + 1/b + c) = 1

...or you could just use two VCAs to linearize the response a la Mike Irwin.




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