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- #include "AudioStream.h"
-
- class AudioEffectGranular : public AudioStream
- {
- public:
- AudioEffectGranular(void): AudioStream(1,inputQueueArray) { }
- void begin(int16_t *sample_bank_def, int16_t max_len_def);
- void setSpeed(float ratio) {
- if (ratio < 0.125) ratio = 0.125;
- else if (ratio > 8.0) ratio = 8.0;
- playpack_rate = ratio * 65536.0 + 0.499;
- }
- void beginFreeze(float grain_length) {
- if (grain_length <= 0.0) return;
- beginFreeze_int(grain_length * (AUDIO_SAMPLE_RATE_EXACT * 0.001) + 0.5);
- }
- void beginPitchShift(float grain_length) {
- if (grain_length <= 0.0) return;
- beginPitchShift_int(grain_length * (AUDIO_SAMPLE_RATE_EXACT * 0.001) + 0.5);
- }
- void stop();
- virtual void update(void);
- private:
- void beginFreeze_int(int grain_samples);
- void beginPitchShift_int(int grain_samples);
- audio_block_t *inputQueueArray[1];
- int16_t *sample_bank;
- uint32_t playpack_rate;
- uint32_t accumulator;
- int16_t max_sample_len;
- int16_t write_head;
- int16_t read_head;
- int16_t grain_mode;
- int16_t freeze_len;
- int16_t prev_input;
- int16_t glitch_len;
- bool allow_len_change;
- bool sample_loaded;
- bool write_en;
- bool sample_req;
- };
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