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124 lines
4.2 KiB
124 lines
4.2 KiB
/*
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* Company: Blackaddr Audio
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* Effect Name: Tuner
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* Description: A noise gate wtih controllable threshold, opening and closing times and DC removal filter. Basic tuner included.
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*
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* This file was auto-generated by Aviate Audio Effect Creator for the Multiverse.
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*/
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#pragma once
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#include <Audio.h>
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#include <arm_math.h>
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#include "Aviate/AudioEffectWrapper.h"
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//!s - START_USER_INCLUDES - put your #includes below this line before the matching END
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//!e - END_USER_INCLUDES
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namespace BlackaddrAudio_Tuner {
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//!s - START_USER_EFFECT_TYPES - put your effect types below this line before the matching END
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//!e - END_USER_EFFECT_TYPES
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class Tuner : public AudioStream, public Aviate::AudioEffectWrapper {
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public:
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static constexpr unsigned NUM_INPUTS = 1;
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static constexpr unsigned NUM_OUTPUTS = 1;
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// List of effect control names
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enum {
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Bypass_e = 0,
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Volume_e = 1,
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TunerSilent_e = 2,
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TunerCents_e = 3,
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TunerNote_e = 4,
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NUM_CONTROLS
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};
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//!s - START_USER_CLASS_TYPES - put your custom class types below this line before the matching END
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//!e - END_USER_CLASS_TYPES
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Tuner();
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//!s - START_USER_CONSTRUCTORS - put your custom constructors below this line before the matching END
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//!e - END_USER_CONSTRUCTORS
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virtual ~Tuner();
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// Standard EFX interface functions - do not change these declaration
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virtual void update(); // main audio processing loop function
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void mapMidiControl(int parameter, int midiCC, int midiChannel = 0) override;
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void processMidi(int channel, int midiCC, int value) override;
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void setParam(int paramIndex, float paramValue) override;
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float getUserParamValue(int paramIndex, float normalizedParamValue);
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const char* getName() override;
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const uint8_t* getRblk() override;
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// control value set functions, must take floats between 0.0f and 1.0f - do not change these declarations
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void volume(float value) override;
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void tunersilent(float value);
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void tunercents(float value);
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void tunernote(float value);
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//!s - START_USER_PUBLIC_MEMBERS - put your public members below this line before the matching END
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void bypass(bool byp) override;
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//!e - END_USER_PUBLIC_MEMBERS
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private:
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audio_block_t *m_inputQueueArray[1]; // required by AudioStream base class, array size is num inputs
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int m_midiConfig[NUM_CONTROLS][2]; // stores the midi parameter mapping
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// m_bypass and m_volume are already provided by the base class AudioEffectWrapper
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float m_tunersilent = 0.0f;
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float m_tunercents = 0.0f;
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float m_tunernote = 0.0f;
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audio_block_t* m_basicInputCheck(audio_block_t* inputAudioBlock, unsigned outputChannel);
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//!s - START_USER_PRIVATE_MEMBERS - put your private members below this line before the matching END
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// Tuner
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// code excerpts from Teensy Audio Library analyze_notefreq.*
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static constexpr unsigned AUDIO_GUITARTUNER_BLOCKS = 24;
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uint64_t running_sum;
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uint16_t tau_global;
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uint64_t yin_buffer[5];
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uint64_t rs_buffer[5];
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int16_t AudioBuffer[AUDIO_GUITARTUNER_BLOCKS*128] __attribute__ ( ( aligned ( 4 ) ) );
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uint8_t yin_idx, state;
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float periodicity, yin_threshold, cpu_usage_max, data;
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bool next_buffer, first_run;
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volatile bool new_output = false, process_buffer;
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audio_block_t *blocklist1[AUDIO_GUITARTUNER_BLOCKS];
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audio_block_t *blocklist2[AUDIO_GUITARTUNER_BLOCKS];
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bool m_initialized = false;
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bool m_tunerEnabled = false;
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bool m_silentEnabled = false;
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unsigned m_skipUpdateCount = 0;
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bool m_signalDetect = false;
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float m_dcValueSum = 0.0f;
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float m_dcValue = 0.0f;
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unsigned m_dcValueCount = 0;
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bool m_calibrateEnabled = false;
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bool m_startupInProgress = true;
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static constexpr float m_ALPHA = 0.95f;
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static constexpr float m_ONE_MINUS_ALPHA = 1.0f - m_ALPHA;
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float m_centsFiltered = 0.0f;
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//SysPlatform::ElapsedMillis m_timer;
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bool available( void );
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float probability( void );
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float read( void );
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uint16_t estimate( uint64_t *yin, uint64_t *rs, uint16_t head, uint16_t tau );
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void process( void );
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void tunerReset();
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void init( float thresholdIn );
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static void copy_buffer(void *destination, const void *source);
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//!e - END_USER_PRIVATE_MEMBERS
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};
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}
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