goertzel Class Reference

#include <dtmffilter.h>

List of all members.

---

Detailed Description

Definition at line 7 of file dtmffilter.h.

Public Member Functions
	goertzel (int N, float targetFreq, float sampleRate)
	~goertzel ()
int	process (short *samples, int length)
Private Member Functions
void	checkMatch ()
void	processOneSample (short sample)
void	reset ()
void	initialise (int N, float targetFreq, float sampleRate)
Private Attributes
float	Q1
float	Q2
float	coeff
float	sine
float	cosine
int	countToN
int	m_N
int	Match

---

Constructor & Destructor Documentation

goertzel::goertzel	(	int	N,
		float	targetFreq,
		float	sampleRate
	)

Definition at line 172 of file dtmffilter.cpp.

goertzel::~goertzel

(

)

Definition at line 177 of file dtmffilter.cpp.

---

Member Function Documentation

int goertzel::process	(	short *	samples,
		int	length
	)

Definition at line 197 of file dtmffilter.cpp.

Referenced by DtmfFilter::process().

void goertzel::checkMatch

(

)

[private]

Definition at line 181 of file dtmffilter.cpp.

Referenced by process().

void goertzel::processOneSample

(

short

sample

)

[private]

Definition at line 214 of file dtmffilter.cpp.

Referenced by process().

void goertzel::reset

(

void

)

[private]

Definition at line 223 of file dtmffilter.cpp.

Referenced by checkMatch(), and initialise().

void goertzel::initialise	(	int	N,
		float	targetFreq,
		float	sampleRate
	)			[private]

Definition at line 231 of file dtmffilter.cpp.

Referenced by goertzel().

---

Member Data Documentation

float goertzel::Q1 [private]

Definition at line 20 of file dtmffilter.h.

Referenced by checkMatch(), processOneSample(), and reset().

float goertzel::Q2 [private]

Definition at line 20 of file dtmffilter.h.

Referenced by checkMatch(), processOneSample(), and reset().

float goertzel::coeff [private]

Definition at line 20 of file dtmffilter.h.

Referenced by checkMatch(), initialise(), and processOneSample().

float goertzel::sine [private]

Definition at line 20 of file dtmffilter.h.

Referenced by initialise().

float goertzel::cosine [private]

Definition at line 20 of file dtmffilter.h.

Referenced by initialise().

int goertzel::countToN [private]

Definition at line 21 of file dtmffilter.h.

Referenced by process(), and reset().

int goertzel::m_N [private]

Definition at line 21 of file dtmffilter.h.

Referenced by initialise(), and process().

int goertzel::Match [private]

Definition at line 22 of file dtmffilter.h.

Referenced by checkMatch(), and process().

---

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

• dtmffilter.h
• dtmffilter.cpp