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add sample and wavetable examples, parsers for both

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This commit is contained in:
Jack Humbert
2019-06-05 00:47:31 -04:00
parent bfe468ef1d
commit f52faeb5d6
15 changed files with 6884 additions and 2348 deletions
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keyboards/planck/keymaps/synth_sample/config.h
+39
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@@ -0,0 +1,39 @@
#pragma once
#ifdef AUDIO_ENABLE
#define STARTUP_SONG SONG(PLANCK_SOUND)
// #define STARTUP_SONG SONG(NO_SOUND)
#define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
SONG(COLEMAK_SOUND), \
SONG(DVORAK_SOUND) \
}
#endif
/*
* MIDI options
*/
/* Prevent use of disabled MIDI features in the keymap */
//#define MIDI_ENABLE_STRICT 1
/* enable basic MIDI features:
- MIDI notes can be sent when in Music mode is on
*/
#define MIDI_BASIC
/* enable advanced MIDI features:
- MIDI notes can be added to the keymap
- Octave shift and transpose
- Virtual sustain, portamento, and modulation wheel
- etc.
*/
//#define MIDI_ADVANCED
/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
//#define MIDI_TONE_KEYCODE_OCTAVES 2
// Most tactile encoders have detents every 4 stages
#define ENCODER_RESOLUTION 4
keyboards/planck/keymaps/synth_sample/keymap.c
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keyboards/planck/keymaps/synth_sample/rules.mk
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keyboards/planck/keymaps/synth_sample/sample.h
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keyboards/planck/keymaps/synth_wavetable/config.h
+39
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@@ -0,0 +1,39 @@
#pragma once
#ifdef AUDIO_ENABLE
#define STARTUP_SONG SONG(PLANCK_SOUND)
// #define STARTUP_SONG SONG(NO_SOUND)
#define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
SONG(COLEMAK_SOUND), \
SONG(DVORAK_SOUND) \
}
#endif
/*
* MIDI options
*/
/* Prevent use of disabled MIDI features in the keymap */
//#define MIDI_ENABLE_STRICT 1
/* enable basic MIDI features:
- MIDI notes can be sent when in Music mode is on
*/
#define MIDI_BASIC
/* enable advanced MIDI features:
- MIDI notes can be added to the keymap
- Octave shift and transpose
- Virtual sustain, portamento, and modulation wheel
- etc.
*/
//#define MIDI_ADVANCED
/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
//#define MIDI_TONE_KEYCODE_OCTAVES 2
// Most tactile encoders have detents every 4 stages
#define ENCODER_RESOLUTION 4
keyboards/planck/keymaps/synth_wavetable/keymap.c
+326
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keyboards/planck/keymaps/synth_wavetable/rules.mk
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keyboards/planck/keymaps/synth_wavetable/wavetable.h
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quantum/audio/audio.h
+6 -4
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@@ -13,8 +13,8 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AUDIO_H
#define AUDIO_H
#pragma once
#include <stdint.h>
#include <stdbool.h>
@@ -27,6 +27,9 @@
#include "voices.h"
#include "quantum.h"
#include <math.h>
#if defined(PROTOCOL_CHIBIOS)
#include "audio_arm.h"
#endif
// Largely untested PWM audio mode (doesn't sound as good)
// #define PWM_AUDIO
@@ -107,6 +110,5 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat);
#define PLAY_SONG(note_array) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), false)
#define PLAY_LOOP(note_array) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), true)
bool is_playing_note(void);
bool is_playing_notes(void);
#endif
quantum/audio/audio_arm.c
+48 -143
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quantum/audio/audio_arm.h
+89
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/* Copyright 2019 Jack Humbert
*
* 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 "ch.h"
/**
* Size of the dac_buffer arrays. All must be the same size.
*/
#define DAC_BUFFER_SIZE 256U
/**
* Highest value allowed by our 12bit DAC.
*/
#ifndef DAC_SAMPLE_MAX
#define DAC_SAMPLE_MAX 4095U
#endif
// #define DAC_LOW_QUALITY
/**
* These presets allow you to quickly switch between quality/voice settings for
* the DAC. The sample rate and number of voices roughly has an inverse
* relationship - slightly higher sample rates may be possible.
*/
#ifdef DAC_VERY_LOW_QUALITY
#define DAC_SAMPLE_RATE 11025U
#define DAC_VOICES_MAX 8
#endif
#ifdef DAC_LOW_QUALITY
#define DAC_SAMPLE_RATE 22050U
#define DAC_VOICES_MAX 4
#endif
#ifdef DAC_HIGH_QUALITY
#define DAC_SAMPLE_RATE 44100U
#define DAC_VOICES_MAX 2
#endif
#ifdef DAC_VERY_HIGH_QUALITY
#define DAC_SAMPLE_RATE 88200U
#define DAC_VOICES_MAX 1
#endif
/**
* Effective bitrate of the DAC. 44.1khz is the standard for most audio - any
* lower will sacrifice perceptible audio quality. Any higher will limit the
* number of simultaneous voices. In most situations, a tenth (1/10) of the
* sample rate is where notes become unbearable.
*/
#ifndef DAC_SAMPLE_RATE
#define DAC_SAMPLE_RATE 44100U
#endif
/**
* The number of voices (in polyphony) that are supported. If too high a value
* is used here, the keyboard will freeze and glitch-out when that many voices
* are being played.
*/
#ifndef DAC_VOICES_MAX
#define DAC_VOICES_MAX 2
#endif
/**
* The default value of the DAC when not playing anything. Certain hardware
* setups may require a high (DAC_SAMPLE_MAX) or low (0) value here.
*/
#ifndef DAC_OFF_VALUE
#define DAC_OFF_VALUE DAC_SAMPLE_MAX / 2
#endif
uint8_t dac_number_of_voices(void);
float dac_get_frequency(uint8_t index);
uint16_t dac_value_generate(void);
void dac_setup_note(void);
quantum/audio/wavetable.h
-2178
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util/sample_parser.py
+39
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#! /bin/python
#
# Copyright 2019 Jack Humbert
#
# 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/>.
#
import wave, struct, sys
waveFile = wave.open(sys.argv[1], 'r')
# print(str(waveFile.getparams()))
# sys.exit()
if (waveFile.getsampwidth() != 2):
raise(Exception("This script currently only works with 16bit audio files"))
length = waveFile.getnframes()
out = "#define DAC_SAMPLE_CUSTOM_LENGTH " + str(length) + "\n\n"
out += "static const dacsample_t dac_sample_custom[" + str(length) + "] = {"
for i in range(0,length):
if (i % 8 == 0):
out += "\n "
waveData = waveFile.readframes(1)
data = struct.unpack("<h", waveData)
out += str(int((int(data[0]) + 0x8000) / 16)) + ", "
out = out[:-2]
out += "\n};"
print(out)
util/wav_parser.py
-23
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@@ -1,23 +0,0 @@
#! /bin/python
import wave, struct, sys
waveFile = wave.open(sys.argv[1], 'r')
length = waveFile.getnframes()
out = "static const dacsample_t dac_buffer_custom[" + str(int(length / 256)) + "][256] = {"
for i in range(0,length):
if (i % 8 == 0):
out += "\n "
if (i % 256 == 0):
out = out[:-2]
out += "{\n "
waveData = waveFile.readframes(1)
data = struct.unpack("<h", waveData)
out += str(int((int(data[0]) + 0x8000) / 16)) + ", "
if (i % 256 == 255):
out = out[:-2]
out += "\n },"
out = out[:-1]
out += "\n};"
print(out)
util/wavetable_parser.py
+40
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@@ -0,0 +1,40 @@
#! /bin/python
#
# Copyright 2019 Jack Humbert
#
# 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/>.
#
import wave, struct, sys
waveFile = wave.open(sys.argv[1], 'r')
length = waveFile.getnframes()
out = "#define DAC_WAVETABLE_CUSTOM_LENGTH " + str(int(length / 256)) + "\n\n"
out += "static const dacsample_t dac_wavetable_custom[" + str(int(length / 256)) + "][256] = {"
for i in range(0,length):
if (i % 8 == 0):
out += "\n "
if (i % 256 == 0):
out = out[:-2]
out += "{\n "
waveData = waveFile.readframes(1)
data = struct.unpack("<h", waveData)
out += str(int((int(data[0]) + 0x8000) / 16)) + ", "
if (i % 256 == 255):
out = out[:-2]
out += "\n },"
out = out[:-1]
out += "\n};"
print(out)