ADM::Linearphase_FIR< F > Class Template Reference

An efficient linear-phase fir filter implementation. More...

Public Member Functions
	Linearphase_FIR (unsigned order, const F *alphas)
	Create linear-phase FIR filter. More...
	~Linearphase_FIR ()
F	process (const F &in_sample)
	Filter one sample with this linear-phase FIR filter. More...

Private Attributes
unsigned	m_order
	The filter order of this linear-phase FIR filter. More...
F *	m_alphas
	FIR filter coefficients. More...
F *	m_output
	Ringbuffer for building future output. More...
unsigned	m_now
	current start of ringbuffer More...

Detailed Description

template<class F>
class ADM::Linearphase_FIR< F >

An efficient linear-phase fir filter implementation.

Constructor & Destructor Documentation

Linearphase_FIR()

template<class F >

ADM::Linearphase_FIR< F >::Linearphase_FIR	(	unsigned	order,
		const F *	alphas
	)

Create linear-phase FIR filter.

Parameters

order	filter order of this FIR filter. restriction: must be even.
alphas	pointer to Array of alpha coefficients. Since this class is for linear phase FIR filters only, only (order / 2 + 1) coefficients will be read. (Coefficients for linear-phase FIR filters are symmetric.)

~Linearphase_FIR()

template<class F >

ADM::Linearphase_FIR< F >::~Linearphase_FIR

Member Function Documentation

process()

template<class F >

F ADM::Linearphase_FIR< F >::process ( const F &  in_sample )

inline

Filter one sample with this linear-phase FIR filter.

Parameters

in_sample

the current input sample

Returns

the computed output sample

Member Data Documentation

m_order

template<class F >

unsigned ADM::Linearphase_FIR< F >::m_order

private

The filter order of this linear-phase FIR filter.

m_alphas

template<class F >

F* ADM::Linearphase_FIR< F >::m_alphas

private

FIR filter coefficients.

Only m_order / 2 + 1 coefficients need to be stored since coefficients of linear-phase FIR filters are symmetric

m_output

template<class F >

F* ADM::Linearphase_FIR< F >::m_output

private

Ringbuffer for building future output.

m_now

template<class F >

unsigned ADM::Linearphase_FIR< F >::m_now

private

current start of ringbuffer

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

• adm.hh