Version 4.1

include/DelayL.h

@@ -1,61 +1,69 @@
-/***************************************************/
-/*! \class DelayL
-    \brief STK linear interpolating delay line class.
-
-    This Delay subclass implements a fractional-
-    length digital delay-line using first-order
-    linear interpolation.  A fixed maximum length
-    of 4095 and a delay of zero is set using the
-    default constructor.  Alternatively, the
-    delay and maximum length can be set during
-    instantiation with an overloaded constructor.
-
-    Linear interpolation is an efficient technique
-    for achieving fractional delay lengths, though
-    it does introduce high-frequency signal
-    attenuation to varying degrees depending on the
-    fractional delay setting.  The use of higher
-    order Lagrange interpolators can typically
-    improve (minimize) this attenuation characteristic.
-
-    by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
-*/
-/***************************************************/
-
-#if !defined(__DELAYL_H)
-#define __DELAYL_H
-
-#include "Delay.h"
-
-class DelayL : public Delay
-{
-public:
-
-  //! Default constructor creates a delay-line with maximum length of 4095 samples and zero delay.
-  DelayL();
-
-  //! Overloaded constructor which specifies the current and maximum delay-line lengths.
-  
-  DelayL(MY_FLOAT theDelay, long maxDelay);
-
-  //! Class destructor.
-  ~DelayL();
-
-  //! Set the delay-line length.
-  /*!
-    The valid range for \e theDelay is from 0 to the maximum delay-line length.
-  */
-  void setDelay(MY_FLOAT theDelay);
-
-  //! Return the current delay-line length.
-  MY_FLOAT getDelay(void) const;
-
-  //! Input one sample to the delay-line and return one output.
-  MY_FLOAT tick(MY_FLOAT sample);
-
- protected:  
-  MY_FLOAT alpha;
-  MY_FLOAT omAlpha;
-};
-
-#endif
+/***************************************************/
+/*! \class DelayL
+    \brief STK linear interpolating delay line class.
+
+    This Delay subclass implements a fractional-
+    length digital delay-line using first-order
+    linear interpolation.  A fixed maximum length
+    of 4095 and a delay of zero is set using the
+    default constructor.  Alternatively, the
+    delay and maximum length can be set during
+    instantiation with an overloaded constructor.
+
+    Linear interpolation is an efficient technique
+    for achieving fractional delay lengths, though
+    it does introduce high-frequency signal
+    attenuation to varying degrees depending on the
+    fractional delay setting.  The use of higher
+    order Lagrange interpolators can typically
+    improve (minimize) this attenuation characteristic.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
+*/
+/***************************************************/
+
+#if !defined(__DELAYL_H)
+#define __DELAYL_H
+
+#include "Delay.h"
+
+class DelayL : public Delay
+{
+public:
+
+  //! Default constructor creates a delay-line with maximum length of 4095 samples and zero delay.
+  DelayL();
+
+  //! Overloaded constructor which specifies the current and maximum delay-line lengths.
+  
+  DelayL(MY_FLOAT theDelay, long maxDelay);
+
+  //! Class destructor.
+  ~DelayL();
+
+  //! Set the delay-line length.
+  /*!
+    The valid range for \e theDelay is from 0 to the maximum delay-line length.
+  */
+  void setDelay(MY_FLOAT theDelay);
+
+  //! Return the current delay-line length.
+  MY_FLOAT getDelay(void) const;
+
+  //! Return the value which will be output by the next call to tick().
+  /*!
+    This method is valid only for delay settings greater than zero!
+   */
+  MY_FLOAT nextOut(void);
+
+  //! Input one sample to the delay-line and return one output.
+  MY_FLOAT tick(MY_FLOAT sample);
+
+ protected:  
+  MY_FLOAT alpha;
+  MY_FLOAT omAlpha;
+  MY_FLOAT nextOutput;
+  bool doNextOut;
+};
+
+#endif