gam::tbl Namespace Reference

Table functions. More...

Functions
template<class T >
void	cosine (T *dst, uint32_t len)
	Fills array with one period of a cosine wave.
template<class T >
void	sine (T *dst, uint32_t len)
	Fills array with one period of a sine wave.
template<class T >
void	sinusoid (T *dst, uint32_t len, double phase, double periods)
	Fills array with arbitrary phase and length sinusoid.
template<class T >
void	multiImpulse (T *dst, uint32_t len, uint32_t hrmLo, uint32_t hrmHi)
	Sums band-limited impulse wave into multi-wavetable array.
template<class T >
void	multiSaw (T *dst, uint32_t len, uint32_t hrmLo, uint32_t hrmHi)
	Sums band-limited saw wave into multi-wavetable array.
template<class T >
void	multiSquare (T *dst, uint32_t len, uint32_t hrmLo, uint32_t hrmHi)
	Sums band-limited square wave into multi-wavetable array.
template<class T >
void	multiTriangle (T *dst, uint32_t len, uint32_t hrmLo, uint32_t hrmHi)
	Sums band-limited triangle wave into multi-wavetable array.
template<class T >
void	multiWave (T *dst, uint32_t len, uint32_t order, void(*func)(T *, uint32_t, uint32_t, uint32_t))
	Create multi-wavetable.
uint32_t	maxHarmonics (uint32_t len)
	Returns maximum number of harmonics that will fit in array.
template<class T >
void	window (T *dst, uint32_t len, WindowType type)
	Fills array with specified window type.
template<class T >
void	bartlett (T *dst, uint32_t len)
	Fills array with Bartlett window.
template<class T >
void	blackman (T *dst, uint32_t len)
	Fills array with Blackman window.
template<class T >
void	blackmanHarris (T *dst, uint32_t len)
	Fills array with Blackman-Harris window.
template<class T >
void	hamming (T *dst, uint32_t len)
	Fills array with Hamming window.
template<class T >
void	hann (T *dst, uint32_t len)
	Fills array with von Hann window.
template<class T >
void	welch (T *dst, uint32_t len)
	Fills array with Welch window.
template<class T >
void	rectangle (T *dst, uint32_t len)
	Fills array with Rectangle window.
template<class T >
void	nyquist (T *dst, uint32_t len, uint32_t str=1)
	Fills array with Nyquist window.
float	phaseIncFactor (double framesPerSec)
	Returns phase increment factor.

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Detailed Description

Table functions.

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Function Documentation

void multiImpulse	(	T *	dst,
		uint32_t	len,
		uint32_t	hrmLo,
		uint32_t	hrmHi
	)

Sums band-limited impulse wave into multi-wavetable array.

The waveform includes harmonics in the range [hrmLo, hrmHi]. The amplitude of the waveform will not be normalized. The ideal waveform shape is [4, -1, 0, -1, 0, -1, 0, -1 ]

void multiSaw	(	T *	dst,
		uint32_t	len,
		uint32_t	hrmLo,
		uint32_t	hrmHi
	)

Sums band-limited saw wave into multi-wavetable array.

The waveform includes harmonics in the range [hrmLo, hrmHi]. The ideal waveform shape is [1, 0.75, 0.5, 0.25, 0, -0.25, -0.5, -0.75]

void multiSquare	(	T *	dst,
		uint32_t	len,
		uint32_t	hrmLo,
		uint32_t	hrmHi
	)

Sums band-limited square wave into multi-wavetable array.

The waveform includes harmonics in the range [hrmLo, hrmHi]. The ideal waveform shape is [ 1, 1, 1, 1, -1, -1, -1, -1].

void multiTriangle	(	T *	dst,
		uint32_t	len,
		uint32_t	hrmLo,
		uint32_t	hrmHi
	)

Sums band-limited triangle wave into multi-wavetable array.

The waveform includes harmonics in the range [hrmLo, hrmHi]. The ideal waveform shape is [ 0, 0.5, 1, 0.5, 0, -0.5, -1, -0.5].

float phaseIncFactor

(

double

framesPerSec

)

Returns phase increment factor.

Multiply by desired frequency in Hz to get integer phase increment.