SynthLab::SineTableSource Class Reference

Storage for one static sinusoidal table source; stores a single sine table that is used for all notes. More...

#include <sinetablesource.h>

Inheritance diagram for SynthLab::SineTableSource:

Public Member Functions
	SineTableSource ()
	Stores the information about the static sinusoidal wavetable (see synthconstants.h) More...
	~SineTableSource ()
	emptu destructor
virtual const char *	getWaveformName () override
virtual void	selectTable (uint32_t midiNoteNumber) override
	Nothing to do for this object since there is only one table.
virtual double	readWaveTable (double normalizedPhaseInc) override
	Read and interpolate the table; uses linear interpolation but could be changed to 4th order LaGrange interpolation instead. More...
virtual uint32_t	getWaveTableLength () override

Protected Attributes
StaticWavetable	sineWavetable
	// — prefab table valid for all MIDI notes

Detailed Description

Storage for one static sinusoidal table source; stores a single sine table that is used for all notes.

• exposes the IWavetavleSource interface
• simplest wavetable source example
• the owning object (a wavetable core) selects the table based on pitch during the update() phase which is ignored since the source only has one table. Then, the owning object makes calls to read the table during the render() phase
• see also StaticWavetable

Author

Will Pirkle http://www.willpirkle.com

Remarks

This object is included and described in further detail in Designing Software Synthesizer Plugins in C++ 2nd Ed. by Will Pirkle

Version

Revision : 1.0

Date

Date : 2021 / 04 / 26

Constructor & Destructor Documentation

SineTableSource()

SynthLab::SineTableSource::SineTableSource ( )

inline

Stores the information about the static sinusoidal wavetable (see synthconstants.h)

• sets up the length and mask

Member Function Documentation

getWaveformName()

virtual const char* SynthLab::SineTableSource::getWaveformName ( )

inlineoverridevirtual

Returns

name of selected string as const char*

Implements SynthLab::IWavetableSource.

getWaveTableLength()

virtual uint32_t SynthLab::SineTableSource::getWaveTableLength ( )

inlineoverridevirtual

Returns

the length of the selected wavetable

Implements SynthLab::IWavetableSource.

readWaveTable()

virtual double SynthLab::SineTableSource::readWaveTable ( double  normalizedPhaseInc )

inlineoverridevirtual

Read and interpolate the table; uses linear interpolation but could be changed to 4th order LaGrange interpolation instead.

Parameters

normalizedPhaseInc

the phase increment value; usually this is the mcounter member of a SynthClock object and is fo/fs where fo is the desired oscillator frequency

Implements SynthLab::IWavetableSource.

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

• C:/RackAFX Projects/SynthLab_SDK/source/sinetablesource.h