SIM::src Class Reference

sample rate converter with sinc reconstruction filter
Core function: SIM::src.process()
More...

Inheritance diagram for SIM::src:

Public Member Functions
double	re_samp (double tau)
void	xcb (double x_new)
	src ()
	~src ()
void	set_size (int n)
void	set_win_type (int w)
void	set_output (double yout)
int	get_size (void)
int	get_win_type (void)
double	get_output (void)
vec	process (const bmat &ceio, const mat &xt)

Public Attributes
double	y0
	registered filter output More...

Detailed Description

sample rate converter with sinc reconstruction filter
Core function: SIM::src.process()

Constructor & Destructor Documentation

SIM::src::src ( )

inline

default SRC uses 15 taps sinc kernel with hanning window

SIM::src::~src ( )

inline

Member Function Documentation

double SIM::src::get_output

(

void

)

get output

Returns

- [double] y0

int SIM::src::get_size

(

void

)

get sinc kernel size

Returns

- [int] sinc fir kernel size

int SIM::src::get_win_type

(

void

)

get sinc window type

Returns

- [int] sinc fir kernel window type WIN_HANNING=1, WIN_KAISER_BESSEL=2, WIN_FLAT_TOP=3

vec SIM::src::process	(	const bmat &	ceio,
		const mat &	xt
	)

process input samples xt[0,i] for active input clock ticks ce[0,i]
for active output clock tick ce[1,i] reconstruct output y[i] for a given fractional time xt[1,i]

Parameters

ceio	- bmat - input/output [cei|ceo] clock enable matrix
xt	- mat - input sample and fractional time xt=[x|t] matrix

Returns

y - vec - output sample vector

double SIM::src::re_samp

(

double

tau

)

reconstructed kernel response h=h_t(tau), tau - normalized time tau=dT/Ts

Parameters

[in]

tau

- [double] - tau - is a Ts fraction

Returns

- [double] impulse response value

void SIM::src::set_output

(

double

yout

)

set output value y0

Parameters

[in]

yout

- [double] => y0

void SIM::src::set_size

(

int

n

)

set sinc kernel size

Parameters

[in]

n

- [int] kernel size

void SIM::src::set_win_type

(

int

w

)

set window type

Parameters

[in]

w

- [int] window type WIN_HANNING=1, WIN_KAISER_BESSEL=2, WIN_FLAT_TOP=3

void SIM::src::xcb

(

double

x_new

)

samples circular buffer

Parameters

[in]

x_new

- [double] new sample

Member Data Documentation

double SIM::src::y0

registered filter output

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

• C:/jobs/vcc/itpp_sci/include/sim/sim_src.hpp
• C:/jobs/vcc/itpp_sci/sim_lib/code/sim_src.cpp