dsp::simple_delay< N, T > Struct Template Reference

#include <delay.h>

Public Member Functions
	simple_delay ()
void	reset ()
void	put (T idata)
template<class U>
void	get (U &odata, int delay)
T	process (T idata, int delay)
template<class U>
void	get_interp (U &odata, int delay, float udelay)
T	get_interp_1616 (unsigned int delay)
T	process_comb (T in, unsigned int delay, float fb)
T	process_comb_lerp16 (T in, unsigned int delay, float udelay, float fb)
T	process_allpass_comb (T in, unsigned int delay, float fb)
T	process_allpass_comb_lerp16 (T in, unsigned int delay, float fb)

Public Attributes
auto_buffer< N, T >	data
int	pos

Detailed Description

template<int N, class T>
struct dsp::simple_delay< N, T >

Delay primitive. Can be used for most delay stuff, including variable (modulated) delays like chorus/flanger. Note that for modulated delay effects use of GetInterp is preferred, because it handles fractional positions and uses linear interpolation, which sounds better most of the time.

Parameters

N	maximum length
C	number of channels read/written for each sample (1 mono, 2 stereo etc)

Constructor & Destructor Documentation

simple_delay()

template<int N, class T>

dsp::simple_delay< N, T >::simple_delay ( )

inline

Member Function Documentation

get()

template<int N, class T>

template<class U>

void dsp::simple_delay< N, T >::get ( U & odata, int delay )

inline

Read one C-channel sample into odata[0], odata[1] etc into buffer. Don't use for modulated delays (chorus/flanger etc) unless you want them to crackle and generally sound ugly

Parameters

odata	pointer to write into
delay	delay relative to current writing pos

get_interp()

template<int N, class T>

template<class U>

void dsp::simple_delay< N, T >::get_interp ( U & odata, int delay, float udelay )

inline

Read one C-channel sample at fractional position. This version can be used for modulated delays, because it uses linear interpolation.

Parameters

odata	value to write into
delay	delay relative to current writing pos
udelay	fractional delay (0..1)

get_interp_1616()

template<int N, class T>

T dsp::simple_delay< N, T >::get_interp_1616 ( unsigned int delay )

inline

Read one C-channel sample at fractional position. This version can be used for modulated delays, because it uses linear interpolation.

Parameters

odata	value to write into
delay	delay relative to current writing pos
udelay	fractional delay (0..1)

process()

template<int N, class T>

T dsp::simple_delay< N, T >::process ( T idata, int delay )

inline

Read and write during the same function call

process_allpass_comb()

template<int N, class T>

T dsp::simple_delay< N, T >::process_allpass_comb ( T in, unsigned int delay, float fb )

inline

Comb allpass filter. The comb filter with additional direct path, which is supposed to cancel the coloration.

Parameters

in	input signal
delay	delay length (must be <N and integer)
fb	feedback (must be <1 or it will be unstable)

process_allpass_comb_lerp16()

template<int N, class T>

T dsp::simple_delay< N, T >::process_allpass_comb_lerp16 ( T in, unsigned int delay, float fb )

inline

Comb allpass filter. The comb filter with additional direct path, which is supposed to cancel the coloration.

Parameters

in	input signal
delay	fractional delay length (must be < 65536 * N)
fb	feedback (must be <1 or it will be unstable)

process_comb()

template<int N, class T>

T dsp::simple_delay< N, T >::process_comb ( T in, unsigned int delay, float fb )

inline

Comb filter. Feedback delay line with given delay and feedback values

Parameters

in	input signal
delay	delay length (must be <N and integer)
fb	feedback (must be <1 or it will be unstable)

process_comb_lerp16()

template<int N, class T>

T dsp::simple_delay< N, T >::process_comb_lerp16 ( T in, unsigned int delay, float udelay, float fb )

inline

Comb filter with linear interpolation. Feedback delay line with given delay and feedback values Note that linear interpolation introduces some weird effects in frequency response.

Parameters

in	input signal
delay	fractional delay length (must be < 65536 * N)
fb	feedback (must be <1 or it will be unstable)

put()

template<int N, class T>

void dsp::simple_delay< N, T >::put ( T idata )

inline

Write one C-channel sample from idata[0], idata[1] etc into buffer

reset()

template<int N, class T>

void dsp::simple_delay< N, T >::reset ( )

inline

Member Data Documentation

data

template<int N, class T>

auto_buffer<N, T> dsp::simple_delay< N, T >::data

pos

template<int N, class T>

int dsp::simple_delay< N, T >::pos

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

• /home/runner/work/lmms-fork/lmms-fork/plugins/LadspaEffect/calf/veal/src/calf/delay.h