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81 lines
2.2 KiB
81 lines
2.2 KiB
/*
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MicroDexed
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MicroDexed is a port of the Dexed sound engine
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(https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6/4.x with audio shield.
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Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
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(c)2018-2021 H. Wirtz <wirtz@parasitstudio.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _SGTL5000PLUS_H_
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#define _SGTL5000PLUS_H_
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#include <Arduino.h>
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#include <Audio.h>
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#define EQ_TYPE_0 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_0 50.0
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#define EQ_Q_0 1.0
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#define EQ_TYPE_1 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_1 120.0
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#define EQ_Q_1 1.0
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#define EQ_TYPE_2 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_2 220.0
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#define EQ_Q_2 1.0
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#define EQ_TYPE_3 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_3 1000.0
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#define EQ_Q_3 1.0
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#define EQ_TYPE_4 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_4 2000.0
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#define EQ_Q_4 1.0
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#define EQ_TYPE_5 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_5 7000.0
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#define EQ_Q_5 1.0
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#define EQ_TYPE_6 FILTER_PARAEQ
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#define EQ_CENTER_FRQ_6 10000.0
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#define EQ_Q_6 1.0
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class AudioControlSGTL5000Plus : public AudioControlSGTL5000
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{
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public:
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AudioControlSGTL5000Plus(uint8_t n = 7) {
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num_bands = constrain(n, 1, 7);
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init_parametric_eq();
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};
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void setEQType(uint8_t band, uint8_t ft);
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void setEQFc(uint8_t band, float frq);
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void setEQQ(uint8_t band, float q);
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void setEQGain(uint8_t band, float gain);
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void commitFilter(uint8_t band);
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private:
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void init_parametric_eq(void);
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uint8_t num_bands;
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int* filter_coeff;
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uint8_t* filter_type;
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float* Fc;
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float* Q;
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float* peakGainDB;
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};
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#endif
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