sbl::dsp::polyblep Namespace Reference

Band-limited oscillator corrections. More...

Functions
float	this_blep (float t)
float	next_blep (float t)
	Correction for the next sample at a step discontinuity.
float	next_integrated_blep (float t)
float	this_integrated_blep (float t)
	Correction for the current sample at a slope discontinuity.

Detailed Description

Band-limited oscillator corrections.

PolyBLEP (Polynomial Band-Limited Step) functions adapted from Mutable Instruments Plaits/Warps (MIT license):

• 2nd-order PolyBLEP for saw/square/pulse
• 4th-order Integrated PolyBLEP for triangle

Function Documentation

next_blep()

float sbl::dsp::polyblep::next_blep ( float  t )

inline

Correction for the next sample at a step discontinuity.

Definition at line 36 of file polyblep.hpp.

next_integrated_blep()

float sbl::dsp::polyblep::next_integrated_blep ( float  t )

inline

Correction for the next sample at a slope discontinuity. 4th-order polynomial: antiderivative of the quadratic BLEP. Multiply by (slope_up + slope_down) * frequency to get the actual correction.

Definition at line 46 of file polyblep.hpp.

Referenced by this_integrated_blep().

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this_blep()

float sbl::dsp::polyblep::this_blep ( float  t )

inline

Correction for the current sample at a step discontinuity. t = normalized time since discontinuity (phase overshoot / frequency).

Definition at line 31 of file polyblep.hpp.

this_integrated_blep()

float sbl::dsp::polyblep::this_integrated_blep ( float  t )

inline

Correction for the current sample at a slope discontinuity.

Definition at line 54 of file polyblep.hpp.

References next_integrated_blep().

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