ArrayArrayArrayArrayArray BrainModular BrainModular Users Forum 2015-03-16T22:19:56+02:00 https://brainmodular.org/forums/app.php/feed/topic/4745 2015-03-16T22:19:56+02:00 2015-03-16T22:19:56+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31592#p31592 <![CDATA[linear to log/exp function for Hz]]> Statistics: Posted by 23fx23 — 16 Mar 2015, 21:19

]]> 2015-03-16T12:41:06+02:00 2015-03-16T12:41:06+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31591#p31591 <![CDATA[linear to log/exp function for Hz]]> if we consider that 640Hz is the half value,
5 is the right coeff.

Statistics: Posted by Fléau — 16 Mar 2015, 11:41

]]> 2015-03-16T09:06:52+02:00 2015-03-16T09:06:52+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31590#p31590 <![CDATA[linear to log/exp function for Hz]]> power.
try various B coeff for example 5 or 1/5 depending of the scale conversion

with B = 5 we have

Freq(Hz) = 20000*power(ValueLinear,5)
ValueLinear = power(Freq(Hz)/20000,1/5)

choose the B coeff as you want ie 3,4,5,6


senso++

Statistics: Posted by senso — 16 Mar 2015, 08:06

]]> 2015-03-16T04:09:43+02:00 2015-03-16T04:09:43+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31589#p31589 <![CDATA[linear to log/exp function for Hz]]> Statistics: Posted by Clearscreen — 16 Mar 2015, 03:09

]]> 2015-03-14T16:47:37+02:00 2015-03-14T16:47:37+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31584#p31584 <![CDATA[linear to log/exp function for Hz]]>

anyone knows what is the math or script code to convert a 'linear' input value to a exponential or log one, and what is the best to use for Hz .frequencies?
you know like equalizers have a typical log representation. tried log and exp but not sure the way to do..

I dlike kind of the same thing as the mapper curve module effect, with a 0-1 range 'linear' array on input that would output a frequency response according to min/max freq.,
or output a 0-1 range that i multiply by max freq.

or exactly the curve when you got a 0-1 fader swiched to log scale .

plz help!

Statistics: Posted by 23fx23 — 14 Mar 2015, 15:47

]]> BrainModular BrainModular Users Forum 2015-03-16T22:19:56+02:00 https://brainmodular.org/forums/app.php/feed/topic/4745 2015-03-16T22:19:56+02:00 2015-03-16T22:19:56+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31592#p31592 <![CDATA[linear to log/exp function for Hz]]> Statistics: Posted by 23fx23 — 16 Mar 2015, 21:19

]]> 2015-03-16T12:41:06+02:00 2015-03-16T12:41:06+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31591#p31591 <![CDATA[linear to log/exp function for Hz]]> if we consider that 640Hz is the half value,
5 is the right coeff.

Statistics: Posted by Fléau — 16 Mar 2015, 11:41

]]> 2015-03-16T09:06:52+02:00 2015-03-16T09:06:52+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31590#p31590 <![CDATA[linear to log/exp function for Hz]]> power.
try various B coeff for example 5 or 1/5 depending of the scale conversion

with B = 5 we have

Freq(Hz) = 20000*power(ValueLinear,5)
ValueLinear = power(Freq(Hz)/20000,1/5)

choose the B coeff as you want ie 3,4,5,6


senso++

Statistics: Posted by senso — 16 Mar 2015, 08:06

]]> 2015-03-16T04:09:43+02:00 2015-03-16T04:09:43+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31589#p31589 <![CDATA[linear to log/exp function for Hz]]> Statistics: Posted by Clearscreen — 16 Mar 2015, 03:09

]]> 2015-03-14T16:47:37+02:00 2015-03-14T16:47:37+02:00 https://brainmodular.org/forums/viewtopic.php?t=4745&p=31584#p31584 <![CDATA[linear to log/exp function for Hz]]>

anyone knows what is the math or script code to convert a 'linear' input value to a exponential or log one, and what is the best to use for Hz .frequencies?
you know like equalizers have a typical log representation. tried log and exp but not sure the way to do..

I dlike kind of the same thing as the mapper curve module effect, with a 0-1 range 'linear' array on input that would output a frequency response according to min/max freq.,
or output a 0-1 range that i multiply by max freq.

or exactly the curve when you got a 0-1 fader swiched to log scale .

plz help!

Statistics: Posted by 23fx23 — 14 Mar 2015, 15:47

]]>