mirror of
https://github.com/thestk/stk
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44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
/*******************************************/
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/* AllPass Interpolating Delay Line */
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/* Object by Perry R. Cook 1995-96. */
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/* Revised by Gary P. Scavone, 1999. */
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/* */
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/* This one uses a delay line of maximum */
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/* length specified on creation, and */
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/* interpolates fractional length using */
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/* an all-pass filter. This version is */
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/* more efficient for computing static */
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/* length delay lines (alpha and coeff */
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/* are computed only when the length */
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/* is set, there probably is a more */
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/* efficient computational form if alpha */
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/* is changed often (each sample)). */
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/* */
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/*******************************************/
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#if !defined(__DLineA_h)
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#define __DLineA_h
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#include "Filter.h"
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class DLineA : public Filter
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{
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protected:
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long inPoint;
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long outPoint;
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long length;
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MY_FLOAT alpha;
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MY_FLOAT coeff;
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MY_FLOAT lastIn;
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public:
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DLineA();
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DLineA(long max_length);
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~DLineA();
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void clear();
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void setDelay(MY_FLOAT length);
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MY_FLOAT tick(MY_FLOAT sample);
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};
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#endif
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