PUBLIC

ResonatorC::ResonatorC(long) ResonatorC::Init(void) ResonatorC::Resonator(float) ResonatorC::Antiresonator(float) ResonatorC::SetABC(long int,long int) ResonatorC::SetABCG(long int,long int,float) ResonatorC::SetZeroABC(long int,long int) ResonatorC::A(void)

ResonatorC
Resonator.
include	"amma/Speech/KlattSynth.hh"
User Level:	Default
Library:	Msignal
Example:	exBnd.cc
Section:	Signal Processing
In Scope:	StdSpeechN

Variables:

float a;

float b;

float c;

float p1;

float p2;

const float minus_pi_t;

func. of sample rate

const float two_pi_t;

func. of sample rate

ResonatorC(long samrate)

Constructor.
samrate = Sample rate for resonator.

void Init()

Initalise resonator.

float Resonator(float input)

Generic resonator function

float Antiresonator(float input)

Generic anti-resonator function
Same as resonator except that a,b,c need to be set with setzeroabc() and we save inputs in p1/p2 rather than outputs. There is currently only one of these - "rnz" Output = (rnz.a * input) + (rnz.b * oldin1) + (rnz.c * oldin2)

void SetABC(long int f,long int bw)

Convert formant freqencies and bandwidth into resonator difference equation coefficents
f = Frequency of resonator in Hz bw = Bandwidth of resonator in Hz

void SetABCG(long int f,long int bw,float gain)

Convienience function for setting parallel resonators with gain
f = Frequency of resonator in Hz bw = Bandwidth of resonator in Hz gain = Gain to use.

void SetZeroABC(long int f,long int bw)

Convert formant freqencies and bandwidth into anti-resonator difference equation constants
f = Frequency of resonator in Hz bw = Bandwidth of resonator in Hz

float & A()

Access the 'a' paramiter.