File size: 13,593 Bytes
a03c9b4 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 |
# Copyright 2024 The YourMT3 Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Please see the details in the LICENSE file.
"""preprocess_rnsynth.py
RNSynth: Randomly generated note sequences using the NSynth dataset.
"""
import os
import random
import glob
import json
import logging
import numpy as np
from typing import Dict, Literal, Optional
from utils.note_event_dataclasses import Note
from utils.audio import get_audio_file_info, load_audio_file, write_wav_file, guess_onset_offset_by_amp_envelope
from utils.midi import note_event2midi
from utils.note2event import note2note_event, sort_notes, validate_notes, trim_overlapping_notes, mix_notes
# yapf: disable
QUALITY_VOCAB = [
'bright', 'dark', 'distortion', 'fast_decay', 'long_release', 'multiphonic', 'nonlinear_env',
'percussive', 'reverb', 'tempo-synced'
]
INSTRUMENT_FAMILY_VOCAB = [
'bass', 'brass', 'flute', 'guitar', 'keyboard', 'mallet', 'organ', 'reed', 'string', 'vocal',
'synth_lead'
]
INSTRUMENT_SOURCE_VOCAB = ['acoustic', 'electronic', 'synthetic']
INSTRUMENT_MAPPING = {
# key: (instrument_family, instrument_source)
('bass', 'acoustic'): {'program': 32, 'channel': 0, 'allow_poly': False,},
('bass', 'electronic'): {'program': 33, 'channel': 0, 'allow_poly': False,},
('bass', 'synthetic'): {'program': 38, 'channel': 0, 'allow_poly': False,},
('brass', 'acoustic'): {'program': 61, 'channel': 1, 'allow_poly': True,},
('brass', 'electronic'): {'program': 62, 'channel': 1, 'allow_poly': True,},
('brass', 'synthetic'): {'program': 62, 'channel': 1, 'allow_poly': True, },
('flute', 'acoustic'): {'program': 73, 'channel': 2, 'allow_poly': False,},
('flute', 'electronic'): {'program': 76, 'channel': 2, 'allow_poly': False,},
('flute', 'synthetic'): {'program': 76, 'channel': 2, 'allow_poly': False,},
('guitar', 'acoustic'): {'program': 24, 'channel': 3, 'allow_poly': True,},
('guitar', 'electronic'): {'program': 27, 'channel': 3, 'allow_poly': True,},
('guitar', 'synthetic'): {'program': 27, 'channel': 3, 'allow_poly': True,},
('keyboard', 'acoustic'): {'program': 0, 'channel': 4, 'allow_poly': True,},
('keyboard', 'electronic'): {'program': 4, 'channel': 4, 'allow_poly': True,},
('keyboard', 'synthetic'): {'program': 80, 'channel': 4, 'allow_poly': True,},
('mallet', 'acoustic'): {'program': 12, 'channel': 5, 'allow_poly': True,},
('mallet', 'electronic'): {'program': 12, 'channel': 5, 'allow_poly': True,},
('mallet', 'synthetic'): {'program': 12, 'channel': 5, 'allow_poly': True,},
('organ', 'acoustic'): {'program': 16, 'channel': 6, 'allow_poly': True,},
('organ', 'electronic'): {'program': 18, 'channel': 6, 'allow_poly': True,},
('organ', 'synthetic'): {'program': 18, 'channel': 6, 'allow_poly': True,},
('reed', 'acoustic'): {'program': 65, 'channel': 7, 'allow_poly': True,},
('reed', 'electronic'): {'program': 83, 'channel': 7, 'allow_poly': True,},
('reed', 'synthetic'): {'program': 83, 'channel': 7, 'allow_poly': True,},
('string', 'acoustic'): {'program': 48, 'channel': 8, 'allow_poly': True,},
('string', 'electronic'): {'program': 50, 'channel': 8, 'allow_poly': True,},
('string', 'synthetic'): {'program': 50, 'channel': 8, 'allow_poly': True,},
# ('vocal', 'acoustic'): [56],
# ('vocal', 'electronic'): [56],
# ('vocal', 'synthetic'): [56],
('synth_lead', 'acoustic'): {'program': 80, 'channel': 9, 'allow_poly': True,},
('synth_lead', 'electronic'): {'program': 80, 'channel': 9, 'allow_poly': True,},
('synth_lead', 'synthetic'): {'program': 80, 'channel': 9, 'allow_poly': True,},
}
CHANNEL_INFO = {
0: {'name': 'bass', 'max_poly': 1},
1: {'name': 'brass', 'max_poly': 4},
2: {'name': 'flute', 'max_poly': 1},
3: {'name': 'guitar', 'max_poly': 6},
4: {'name': 'keyboard', 'max_poly': 8},
5: {'name': 'mallet', 'max_poly': 4},
6: {'name': 'organ', 'max_poly': 8},
7: {'name': 'reed', 'max_poly': 2},
8: {'name': 'string', 'max_poly': 4},
9: {'name': 'synth_lead', 'max_poly': 2},
}
# yapf: enable
class RandomNSynthGenerator(object):
def __init__(self, channel_info: Dict=CHANNEL_INFO):
self.num_channels = len(channel_info)
self.channel_info = channel_info
self.channel_max_poly = [channel_info[ch]['max_poly'] for ch in range(self.num_channels)]
# channel_space_left[ch]: current state of empty space for notes left in channel
self.channel_space_left = [0] * self.num_channels
for ch in range(self.num_channels):
self.reset_space_left(ch)
def reset_space_left(self, ch: int):
max_poly = self.channel_max_poly[ch]
if max_poly == 1:
self.channel_space_left[ch] = 1
else:
self.channel_space_left[ch] = np.random.randint(1, max_poly + 1 )
def setup_logger(log_file: str) -> logging.Logger:
logger = logging.getLogger('my_logger')
logger.setLevel(logging.DEBUG)
file_handler = logging.FileHandler(log_file)
formatter = logging.Formatter('%(asctime)s:%(levelname)s:%(message)s')
file_handler.setFormatter(formatter)
if not logger.handlers:
logger.addHandler(file_handler)
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.DEBUG)
console_formatter = logging.Formatter('%(levelname)s - %(message)s')
console_handler.setFormatter(console_formatter)
logger.addHandler(console_handler)
return logger
def get_duration_by_detecting_offset(audio_file: os.PathLike,
side_info: Optional[str] = None,
offset_threshold: float = 0.02) -> float:
fs, n_frames, _ = get_audio_file_info(audio_file)
x = load_audio_file(audio_file, fs=fs)
if side_info is not None and 'fast_decay' in side_info or 'percussive' in side_info:
x = x[:int(fs * 2.0)] # limit to 1.5 sec
_, offset, _ = guess_onset_offset_by_amp_envelope(
x, fs=fs, onset_threshold=0., offset_threshold=offset_threshold, frame_size=128)
offset = min(offset, n_frames)
dur_sec = np.floor((offset / fs) * 1000) / 1000
return dur_sec
def random_key_cycle(d: Dict):
keys = list(d.keys())
while True:
random.shuffle(keys)
for i, key in enumerate(keys):
is_last_element = (i == len(keys) - 1) # Check if it's the last element in the cycle
yield (d[key], is_last_element)
def create_sound_info(base_dir: os.PathLike, logger: logging.Logger,
split: Literal['train', 'validation', 'test'], metadata_file: os.PathLike):
"""Create a dictionary of sound info from the metadata file."""
with open(metadata_file, 'r') as f:
metadata = json.load(f)
logger.info(f'Loaded {metadata_file}. Number of examples: {len(metadata)}')
# Create a sound_info dictionary
sound_info = {} # key: nsynth_id, value: dictionary of sound info
count_skipped = 0
skipped_instrument_family = set()
for i, (k, v) in enumerate(metadata.items()):
if i % 5000 == 0:
print(f'Creating sound info {i} / {len(metadata)}')
nsynth_id = v['note']
instrument_family = v['instrument_family_str']
instrument_source = v['instrument_source_str']
audio_file = os.path.join(base_dir, split, 'audio', k + '.wav')
if not os.path.exists(audio_file):
raise FileNotFoundError(audio_file)
dur_sec = get_duration_by_detecting_offset(
audio_file, side_info=v['qualities_str'], offset_threshold=0.001)
if INSTRUMENT_MAPPING.get((instrument_family, instrument_source), None) is not None:
sound_info[nsynth_id] = {
'audio_file':
audio_file,
'program':
INSTRUMENT_MAPPING[instrument_family, instrument_source]['program'],
'pitch':
int(v['pitch']),
'velocity':
int(v['velocity']),
'channel_group':
INSTRUMENT_MAPPING[instrument_family, instrument_source]['channel'],
'dur_sec':
dur_sec,
}
else:
count_skipped += 1
skipped_instrument_family.add(instrument_family)
logger.info(f'Created sound info. Number of examples: {len(sound_info)}')
logger.info(f'Number of skipped examples: {count_skipped}, {skipped_instrument_family}')
del metadata
# Regroup sound_info by channel_group
sound_info_by_channel_group = {} # key: channel_group, value: list of sound_info
num_channel_groups = 10
for i in range(num_channel_groups):
sound_info_by_channel_group[i] = {}
for nsynth_id, info in sound_info.items():
channel_group = info['channel_group']
sound_info_by_channel_group[channel_group][nsynth_id] = info
del sound_info
channel_group_counts = [
(CHANNEL_INFO[k]['name'], len(v)) for k, v in sound_info_by_channel_group.items()
]
logger.info('Count of sound_info in each channel_group: {}'.format(channel_group_counts))
return sound_info_by_channel_group, num_channel_groups
def random_nsynth_generator(data_home: os.PathLike,
dataset_name: str = 'random_nsynth',
generation_minutes_per_file: float = 4.0) -> None:
"""
Splits:
'train'
'validation'
'test'
Writes:
- {dataset_name}_{split}_file_list.json: a dictionary with the following keys:
{
index:
{
'random_nsynth_id': random_nsynth_id, # = nsynth_id
'n_frames': (int),
'stem_file': 'path/to/stem.npy',
'mix_audio_file': 'path/to/mix.wav',
'notes_file': 'path/to/notes.npy',
'note_events_file': 'path/to/note_events.npy',
'midi_file': 'path/to/midi.mid', # this is 120bpm converted midi file from note_events
'program': List[int],
'is_drum': List[int], # [0] or [1]
}
}
"""
# Directory and file paths
base_dir = os.path.join(data_home, dataset_name + '_yourmt3_16k')
output_index_dir = os.path.join(data_home, 'yourmt3_indexes')
os.makedirs(output_index_dir, exist_ok=True)
# Setup logger
log_file = os.path.join(base_dir, 'sound_genetation_log.txt')
logger = setup_logger(log_file)
# Load annotation json file as dictionary
split = 'validation'
metadata_file = os.path.join(base_dir, split, 'examples.json')
# Create a sound_info dictionary
sound_info_by_channel_group, num_channel_groups = create_sound_info(
base_dir, logger, split, metadata_file)
# Gnenerate random note sequences
max_frames_per_file = int(generation_minutes_per_file * 60 * 16000)
sound_gens = [
random_key_cycle(sound_info_by_channel_group[key])
for key in sorted(sound_info_by_channel_group.keys())
]
# 5-minute audio generation
notes = []
y = np.zeros((num_channel_groups, max_frames_per_file), dtype=np.float32) # (C, L)
bass_channel = 0 # loop for a cycle of bass channel generation
cur_frame = 0
# is_last_element_bass = False
#while cur_frame < max_frames_per_file and is_last_element_bass == False:
# x: source audio, y: target audio for each channel
x_info, is_last_element = next(sound_gens[ch])
if ch == bass_channel:
is_last_element = is_last_element_bass
# info about this channel
onset_in_frame = cur_frame
offset_in_frame = cur_frame + int(x_info['dur_sec'] * 16000)
x = load_audio_file(x_info['audio_file'], fs=16000)
x = x[:int(x_info['dur_sec'] * 16000)]
y[ch, :] = 0
def preprocess_random_nsynth_16k(data_home=os.PathLike, dataset_name='random_nsynth') -> None:
"""
Splits:
'train'
'validation'
'test'
Writes:
- {dataset_name}_{split}_file_list.json: a dictionary with the following keys:
{
index:
{
'random_nsynth_id': random_nsynth_id, # = nsynth_id
'n_frames': (int),
'stem_file': 'path/to/stem.npy',
'mix_audio_file': 'path/to/mix.wav',
'notes_file': 'path/to/notes.npy',
'note_events_file': 'path/to/note_events.npy',
'midi_file': 'path/to/midi.mid', # this is 120bpm converted midi file from note_events
'program': List[int],
'is_drum': List[int], # [0] or [1]
}
}
"""
# Directory and file paths
base_dir = os.path.join(data_home, dataset_name + '_yourmt3_16k')
output_index_dir = os.path.join(data_home, 'yourmt3_indexes')
os.makedirs(output_index_dir, exist_ok=True)
# Setup logger
log_file = os.path.join(base_dir, 'log.txt')
logger = setup_logger(log_file)
# Load annotation json file as dictionary
split = 'validation'
metadata_file = os.path.join(base_dir, split, 'examples.json')
with open(metadata_file, 'r') as f:
metadata = json.load(f)
logger.info(f'Loaded {metadata_file}. Number of examples: {len(metadata)}') |