67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Copyright 2016 Jack Humbert
|
|
* Copyright 2020 JohSchneider
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include "wait.h"
|
|
#include "luts.h"
|
|
|
|
float voice_envelope(float frequency);
|
|
|
|
typedef enum {
|
|
default_voice,
|
|
#ifdef AUDIO_VOICES
|
|
vibrating,
|
|
something,
|
|
drums,
|
|
butts_fader,
|
|
octave_crunch,
|
|
duty_osc,
|
|
duty_octave_down,
|
|
delayed_vibrato,
|
|
// delayed_vibrato_octave,
|
|
// duty_fifth_down,
|
|
// duty_fourth_down,
|
|
// duty_third_down,
|
|
// duty_fifth_third_down,
|
|
#endif
|
|
number_of_voices // important that this is last
|
|
} voice_type;
|
|
|
|
void set_voice(voice_type v);
|
|
void voice_iterate(void);
|
|
void voice_deiterate(void);
|
|
|
|
// Vibrato functions
|
|
void voice_set_vibrato_rate(float rate);
|
|
void voice_increase_vibrato_rate(float change);
|
|
void voice_decrease_vibrato_rate(float change);
|
|
void voice_set_vibrato_strength(float strength);
|
|
void voice_increase_vibrato_strength(float change);
|
|
void voice_decrease_vibrato_strength(float change);
|
|
|
|
// Timbre functions
|
|
/**
|
|
* @brief set the global timbre for tones to be played
|
|
* @note: only applies to pwm implementations - where it adjusts the duty-cycle
|
|
* @note: using any instrument from voices.[ch] other than 'default' may override the set value
|
|
* @param[in]: timbre: valid range is (0,100)
|
|
*/
|
|
void voice_set_timbre(uint8_t timbre);
|
|
uint8_t voice_get_timbre(void);
|