LogarithmicVolumeControl Class Reference

Parametric Logarithmic volume control. Using the formula pow(b,input) * a - a, where b is b = pow(((1/ym)-1), 2) and a is a = 1.0 / (b - 1.0). The parameter ym is determining the steepness. See https://electronics.stackexchange.com/questions/304692/formula-for-logarithmic-audio-taper-pot. More...

#include <VolumeControl.h>

Inheritance diagram for LogarithmicVolumeControl:

Public Member Functions
	LogarithmicVolumeControl (float ym=0.1)
virtual float	getVolumeFactor (float input)
	determines a multiplication factor (0.0 to 1.0) from an input value (0.0 to 1.0).

Protected Member Functions
virtual float	limit (float in)
	limits the output to the range of 0 to 1.0

Protected Attributes
float	ym

Detailed Description

Parametric Logarithmic volume control. Using the formula pow(b,input) * a - a, where b is b = pow(((1/ym)-1), 2) and a is a = 1.0 / (b - 1.0). The parameter ym is determining the steepness. See https://electronics.stackexchange.com/questions/304692/formula-for-logarithmic-audio-taper-pot.

Author

Phil Schatzmann

Copyright

GPLv3

Constructor & Destructor Documentation

LogarithmicVolumeControl()

LogarithmicVolumeControl ( float  ym = 0.1 )

inline

Member Function Documentation

getVolumeFactor()

virtual float getVolumeFactor ( float  volume )

inlinevirtual

determines a multiplication factor (0.0 to 1.0) from an input value (0.0 to 1.0).

Implements VolumeControl.

limit()

virtual float limit ( float  in )

inlineprotectedvirtualinherited

limits the output to the range of 0 to 1.0

Member Data Documentation

ym

float ym

protected

---

The documentation for this class was generated from the following file:

• src/AudioTools/CoreAudio/VolumeControl.h