31 void setB0( StkFloat b0 ) { b_[0] = b0; };
34 void setA1( StkFloat a1 ) { a_[1] = a1; };
51 StkFloat
lastOut(
void )
const {
return lastFrame_[0]; };
54 StkFloat
tick( StkFloat input );
82 inputs_[0] = gain_ * input;
83 lastFrame_[0] = b_[0] * inputs_[0] - a_[1] * outputs_[1];
84 outputs_[1] = lastFrame_[0];
91 #if defined(_STK_DEBUG_)
92 if ( channel >= frames.
channels() ) {
93 oStream_ <<
"OnePole::tick(): channel and StkFrames arguments are incompatible!";
98 StkFloat *samples = &frames[channel];
99 unsigned int hop = frames.
channels();
100 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
101 inputs_[0] = gain_ * *samples;
102 *samples = b_[0] * inputs_[0] - a_[1] * outputs_[1];
103 outputs_[1] = *samples;
106 lastFrame_[0] = outputs_[1];
112 #if defined(_STK_DEBUG_)
114 oStream_ <<
"OnePole::tick(): channel and StkFrames arguments are incompatible!";
119 StkFloat *iSamples = &iFrames[iChannel];
120 StkFloat *oSamples = &oFrames[oChannel];
122 for (
unsigned int i=0; i<iFrames.
frames(); i++, iSamples += iHop, oSamples += oHop ) {
123 inputs_[0] = gain_ * *iSamples;
124 *oSamples = b_[0] * inputs_[0] - a_[1] * outputs_[1];
125 outputs_[1] = *oSamples;
128 lastFrame_[0] = outputs_[1];
STK abstract filter class.
Definition: Filter.h:23
STK one-pole filter class.
Definition: OnePole.h:21
~OnePole()
Class destructor.
StkFloat lastOut(void) const
Return the last computed output value.
Definition: OnePole.h:51
void setA1(StkFloat a1)
Set the a[1] coefficient value.
Definition: OnePole.h:34
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: OnePole.h:80
void setCoefficients(StkFloat b0, StkFloat a1, bool clearState=false)
Set all filter coefficients.
void setPole(StkFloat thePole)
Set the pole position in the z-plane.
OnePole(StkFloat thePole=0.9)
The default constructor creates a low-pass filter (pole at z = 0.9).
void setB0(StkFloat b0)
Set the b[0] coefficient value.
Definition: OnePole.h:31
An STK class to handle vectorized audio data.
Definition: Stk.h:287
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition: Stk.h:415
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition: Stk.h:418
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
The STK namespace.
Definition: ADSR.h:8