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   37   DelayL( StkFloat delay = 0.0, 
unsigned long maxDelay = 4095 );
 
   62   StkFloat 
getDelay( 
void )
 const { 
return delay_; };
 
   70   StkFloat 
tapOut( 
unsigned long tapDelay );
 
   73   void tapIn( StkFloat value, 
unsigned long tapDelay );
 
   76   StkFloat 
lastOut( 
void )
 const { 
return lastFrame_[0]; };
 
   85   StkFloat 
tick( StkFloat input );
 
  111   unsigned long inPoint_;
 
  112   unsigned long outPoint_;
 
  116   StkFloat nextOutput_;
 
  124     nextOutput_ = inputs_[outPoint_] * omAlpha_;
 
  126     if (outPoint_+1 < inputs_.
size())
 
  127       nextOutput_ += inputs_[outPoint_+1] * alpha_;
 
  129       nextOutput_ += inputs_[0] * alpha_;
 
  138   if ( delay + 1 > inputs_.
size() ) { 
 
  139     oStream_ << 
"DelayL::setDelay: argument (" << delay << 
") greater than  maximum!";
 
  144     oStream_ << 
"DelayL::setDelay: argument (" << delay << 
") less than zero!";
 
  148   StkFloat outPointer = inPoint_ - delay;  
 
  151   while ( outPointer < 0 )
 
  152     outPointer += inputs_.
size(); 
 
  154   outPoint_ = (long) outPointer;   
 
  156   alpha_ = outPointer - outPoint_; 
 
  157   omAlpha_ = (StkFloat) 1.0 - alpha_;
 
  159   if ( outPoint_ == inputs_.
size() ) outPoint_ = 0;
 
  165   inputs_[inPoint_++] = input * gain_;
 
  168   if ( inPoint_ == inputs_.
size() )
 
  175   if ( ++outPoint_ == inputs_.
size() )
 
  178   return lastFrame_[0];
 
  183 #if defined(_STK_DEBUG_) 
  184   if ( channel >= frames.
channels() ) {
 
  185     oStream_ << 
"DelayL::tick(): channel and StkFrames arguments are incompatible!";
 
  190   StkFloat *samples = &frames[channel];
 
  191   unsigned int hop = frames.
channels();
 
  192   for ( 
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
 
  193     inputs_[inPoint_++] = *samples * gain_;
 
  194     if ( inPoint_ == inputs_.
size() ) inPoint_ = 0;
 
  197     if ( ++outPoint_ == inputs_.
size() ) outPoint_ = 0;
 
  200   lastFrame_[0] = *(samples-hop);
 
  206 #if defined(_STK_DEBUG_) 
  208     oStream_ << 
"DelayL::tick(): channel and StkFrames arguments are incompatible!";
 
  213   StkFloat *iSamples = &iFrames[iChannel];
 
  214   StkFloat *oSamples = &oFrames[oChannel];
 
  216   for ( 
unsigned int i=0; i<iFrames.
frames(); i++, iSamples += iHop, oSamples += oHop ) {
 
  217     inputs_[inPoint_++] = *iSamples * gain_;
 
  218     if ( inPoint_ == inputs_.
size() ) inPoint_ = 0;
 
  221     if ( ++outPoint_ == inputs_.
size() ) outPoint_ = 0;
 
  224   lastFrame_[0] = *(oSamples-oHop);
 
  
StkFloat tapOut(unsigned long tapDelay)
Return the value at tapDelay samples from the delay-line input.
void setMaximumDelay(unsigned long delay)
Set the maximum delay-line length.
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition: Stk.h:407
DelayL(StkFloat delay=0.0, unsigned long maxDelay=4095)
Default constructor creates a delay-line with maximum length of 4095 samples and zero delay.
size_t size() const
Returns the total number of audio samples represented by the object.
Definition: Stk.h:362
~DelayL()
Class destructor.
void tapIn(StkFloat value, unsigned long tapDelay)
Set the value at tapDelay samples from the delay-line input.
STK linear interpolating delay line class.
Definition: DelayL.h:28
StkFloat lastOut(void) const
Return the last computed output value.
Definition: DelayL.h:76
An STK class to handle vectorized audio data.
Definition: Stk.h:276
StkFloat nextOut(void)
Return the value which will be output by the next call to tick().
Definition: DelayL.h:120
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition: Stk.h:404
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
StkFloat getDelay(void) const
Return the current delay-line length.
Definition: DelayL.h:62
unsigned long getMaximumDelay(void)
Get the maximum delay-line length.
Definition: DelayL.h:43
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayL.h:163
void setDelay(StkFloat delay)
Set the delay-line length.
Definition: DelayL.h:136
The STK namespace.
Definition: ADSR.h:6
STK abstract filter class.
Definition: Filter.h:23