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37 lines
811 B
C
37 lines
811 B
C
#pragma once
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#ifdef DEBUG
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#define BS412_DEBUG
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#endif
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#include <math.h>
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#include <string.h>
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#include <stdint.h>
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#ifdef BS412_DEBUG
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#include "../lib/debug.h"
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#endif
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typedef struct
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{
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uint32_t mpx_deviation;
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uint32_t sample_rate;
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uint32_t sample_counter;
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float target;
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float attack;
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float release;
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float max_gain;
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float gain;
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double avg_power;
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float alpha;
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uint8_t can_compress : 1;
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uint8_t second_counter;
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float last_output;
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float avg_deviation;
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float modulation_power;
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} BS412Compressor;
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// float dbr_to_deviation(float dbr);
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float deviation_to_dbr(float deviation);
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void init_bs412(BS412Compressor *comp, uint32_t mpx_deviation, float target_power, float attack, float release, float max_gain, uint32_t sample_rate);
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float bs412_compress(BS412Compressor *comp, float audio, float sample_mpx); |