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66 lines
2.0 KiB
66 lines
2.0 KiB
/* Copyright 2016 Jack Humbert
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* Copyright 2020 JohSchneider
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "wait.h"
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#include "luts.h"
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float voice_envelope(float frequency);
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typedef enum {
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default_voice,
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#ifdef AUDIO_VOICES
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vibrating,
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something,
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drums,
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butts_fader,
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octave_crunch,
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duty_osc,
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duty_octave_down,
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delayed_vibrato,
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// delayed_vibrato_octave,
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// duty_fifth_down,
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// duty_fourth_down,
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// duty_third_down,
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// duty_fifth_third_down,
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#endif
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number_of_voices // important that this is last
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} voice_type;
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void set_voice(voice_type v);
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void voice_iterate(void);
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void voice_deiterate(void);
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// Vibrato functions
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void voice_set_vibrato_rate(float rate);
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void voice_increase_vibrato_rate(float change);
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void voice_decrease_vibrato_rate(float change);
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void voice_set_vibrato_strength(float strength);
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void voice_increase_vibrato_strength(float change);
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void voice_decrease_vibrato_strength(float change);
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// Timbre functions
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/**
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* @brief set the global timbre for tones to be played
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* @note: only applies to pwm implementations - where it adjusts the duty-cycle
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* @note: using any instrument from voices.[ch] other than 'default' may override the set value
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* @param[in]: timbre: valid range is (0,100)
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*/
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void voice_set_timbre(uint8_t timbre);
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uint8_t voice_get_timbre(void);
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