Class daisysp::HarmonicOscillator¶

template <int num_harmonics>

ClassList > daisysp > HarmonicOscillator

Harmonic Oscillator Module based on Chebyshev polynomials.More...

#include <harmonic_osc.h>

Public Functions¶

Type	Name
	HarmonicOscillator ()
void	Init (float sample_rate)
float	Process ()
void	SetAmplitudes (const float * amplitudes)
void	SetFirstHarmIdx (int idx)
void	SetFreq (float freq)
void	SetSingleAmp (const float amp, int idx)
	~HarmonicOscillator ()

Detailed Description¶

Author:

Ben Sergentanis

Date:

Dec 2020 Harmonic Oscillator Module based on Chebyshev polynomials Works well for a small number of harmonics. For the higher order harmonics. We need to reinitialize the recurrence by computing two high harmonics.

Ported from pichenettes/eurorack/plaits/dsp/oscillator/harmonic_oscillator.h to an independent module. Original code written by Emilie Gillet in 2016.

Public Functions Documentation¶

function HarmonicOscillator¶

inline daisysp::HarmonicOscillator::HarmonicOscillator ()

function Init¶

inline void daisysp::HarmonicOscillator::Init (
    float sample_rate
)

Initialize harmonic oscillator

Parameters:

sample_rate Audio engine samplerate

function Process¶

inline float daisysp::HarmonicOscillator::Process ()

Get the next floating point sample

function SetAmplitudes¶

inline void daisysp::HarmonicOscillator::SetAmplitudes (
    const  float * amplitudes
)

Set the amplitudes of each harmonic of the root.

Parameters:

amplitudes Amplitudes to set. Sum of all amplitudes must be < 1. The array referenced must be at least as large as num_harmonics.

function SetFirstHarmIdx¶

inline void daisysp::HarmonicOscillator::SetFirstHarmIdx (
    int idx
)

Offset the set of harmonics. Passing in 3 means "harmonic 0" is the 3^rd harm., 1 is the 4^th, etc.

Parameters:

idx Default behavior is 1. Values < 0 default to 1.

function SetFreq¶

inline void daisysp::HarmonicOscillator::SetFreq (
    float freq
)

Set the main frequency

Parameters:

freq Freq to be set in Hz.

function SetSingleAmp¶

inline void daisysp::HarmonicOscillator::SetSingleAmp (
    const  float amp,
    int idx
)

Sets one amplitude. Does nothing if idx out of range.

Parameters:

amp Amplitude to set
idx Which harmonic to set.

function ~HarmonicOscillator¶

inline daisysp::HarmonicOscillator::~HarmonicOscillator ()

The documentation for this class was generated from the following file external-docs/DaisySP/Source/Synthesis/harmonic_osc.h