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  1. /* Audio Library for Teensy 3.X
  2. * Copyright (c) 2014, Pete (El Supremo)
  3. *
  4. * Permission is hereby granted, free of charge, to any person obtaining a copy
  5. * of this software and associated documentation files (the "Software"), to deal
  6. * in the Software without restriction, including without limitation the rights
  7. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  8. * copies of the Software, and to permit persons to whom the Software is
  9. * furnished to do so, subject to the following conditions:
  10. *
  11. * The above copyright notice and this permission notice shall be included in
  12. * all copies or substantial portions of the Software.
  13. *
  14. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20. * THE SOFTWARE.
  21. */
  22. #ifndef effect_chorus_h_
  23. #define effect_chorus_h_
  24. #include "Arduino.h"
  25. #include "AudioStream.h"
  26. /******************************************************************/
  27. // A u d i o E f f e c t C h o r u s
  28. // Written by Pete (El Supremo) Jan 2014
  29. // 140219 - correct storage class (not static)
  30. #define CHORUS_DELAY_PASSTHRU -1
  31. class AudioEffectChorus :
  32. public AudioStream
  33. {
  34. public:
  35. AudioEffectChorus(void):
  36. AudioStream(1,inputQueueArray), num_chorus(2)
  37. { }
  38. boolean begin(short *delayline,int delay_length,int n_chorus);
  39. virtual void update(void);
  40. void voices(int n_chorus);
  41. private:
  42. audio_block_t *inputQueueArray[1];
  43. short *l_delayline;
  44. short l_circ_idx;
  45. int num_chorus;
  46. int delay_length;
  47. };
  48. #endif