/* 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);