def __init__(self, musdb_root, subset, target_names, n_fft, hop_length, num_frame):
musdb_root = Path(musdb_root)
self.root = musdb_root.joinpath(subset)
if subset == 'test':
self.musdb_reference = musdb.DB(root=musdb_root, subsets='test', is_wav=True)
elif subset == 'train':
self.musdb_reference = musdb.DB(root=musdb_root, subsets='train', split='train', is_wav=True)
elif subset == 'valid':
self.musdb_reference = musdb.DB(root=musdb_root, subsets='train', split='valid', is_wav=True)
else:
raise ModuleNotFoundError
check_musdb_valid(self.musdb_reference)
self.source_names = ['vocals', 'drums', 'bass', 'other']
if target_names is None:
self.target_names = self.source_names
else:
self.target_names = target_names
self.num_tracks = len(self.musdb_reference)
self.num_targets = len(self.target_names)
# cache wav file dictionary
self.wav_dict = {i: {s: self.musdb_reference.tracks[i].sources[s].path for s in self.source_names}
for i in range(self.num_tracks)}
for i in range(self.num_tracks):
self.wav_dict[i]['mixture'] = self.musdb_reference[i].path
self.lengths = [self.get_audio(i, 'vocals').shape[0] for i in range(self.num_tracks)]
self.window_length = hop_length * (num_frame - 1)
def make_spectrograms(data, test):
"""
Generates all of the spectrograms from the musdb18 dataset.
:return: None
"""
if data=="train":
mus_data = musdb.DB(root="data/musdb18", subsets="train")
else:
mus_data = musdb.DB(root="data/musdb18", subsets="test")
dictionary = {}
dictionary["mix"] = []
dictionary["vocals"] = []
dictionary["instrumental"] = []
# Creating the spectogram arrays from the training data
num_tracks = len(mus_data)
percent = 0.1
for i, track in enumerate(mus_data):
if i / num_tracks > percent:
print(int(100 * percent), "%", "of " + data + " data generated")
percent += 0.1
# Converting samples to target rate of 22050
original_sr = track.rate
target_sr = 22050
mix_data = librosa.resample(librosa.to_mono(track.audio.T), orig_sr=original_sr, target_sr=target_sr, res_type='kaiser_best', fix=True, scale=False)
vocal_data = librosa.resample(librosa.to_mono(track.targets['vocals'].audio.T), orig_sr=original_sr, target_sr=target_sr, res_type='kaiser_best', fix=True, scale=False)
instrumental_data = librosa.resample(librosa.to_mono(track.targets['accompaniment'].audio.T), orig_sr=original_sr, target_sr=target_sr, res_type='kaiser_best', fix=True, scale=False)
# Length of frame; 66150 should be 3 seconds (appears as 6 seconds on graph)
len_frame = target_sr*3
num_frames = int(len(mix_data)/len_frame)
# Saving each frame as a spectrogram array (and putting track in mix folders and vocals in vocals folder)
for frame in range(num_frames):
dictionary["mix"].append(generate_spectrogram_array(mix_data[frame * len_frame : frame * len_frame + len_frame]))
dictionary["vocals"].append(generate_spectrogram_array(vocal_data[frame * len_frame : frame * len_frame + len_frame]))
dictionary["instrumental"].append(generate_spectrogram_array(instrumental_data[frame * len_frame : frame * len_frame + len_frame]))
if test:
pickle.dump(dictionary, open( "data/spectrograms/" + data + "-1", "wb" ))
make_spectrogram_image(mix_data[frame * len_frame : frame * len_frame + len_frame],"test-image")
return
# pickle dictionary here
pickle.dump(dictionary, open( "data/spectrograms/" + data, "wb" ))
return
def __init__(self, musdb_root='data/musdb18_wav/', is_wav=True):
self.musdb_train = musdb.DB(root=musdb_root,
subsets="train",
split='train',
is_wav=is_wav)
self.musdb_valid = musdb.DB(root=musdb_root,
subsets="train",
split='valid',
is_wav=is_wav)
self.musdb_test = musdb.DB(root=musdb_root,
subsets="test",
is_wav=is_wav)
assert (len(self.musdb_train) > 0)
def __init__(self, musdbwav_path, subset_split, instruments,
sample_length):
assert subset_split in ('train', 'test', 'valid')
if subset_split in ('train', 'valid'):
self.mus = musdb.DB(root=musdbwav_path,
subsets='train',
split=subset_split,
is_wav=True)
elif subset_split == 'test':
self.mus = musdb.DB(root=musdbwav_path,
subsets='test',
is_wav=True)
self.sample_length = sample_length
self.instruments = instruments
def eval_mus_dir(dataset, estimates_dir, output_dir=None, ext='wav'):
"""Run evaluation of musdb estimate dir
Parameters
----------
dataset : DB(object)
MUSDB18 Database object.
estimates_dir : str
Path to estimates folder.
output_dir : str
Output folder where evaluation json files are stored.
ext : str
estimate file extension, defaults to `wav`
"""
# create a new musdb instance for estimates with the same file structure
est = musdb.DB(root=estimates_dir, is_wav=True)
# get a list of track names
tracks_to_be_estimated = [t.name for t in est.tracks]
for track in dataset:
if track.name not in tracks_to_be_estimated:
continue
_load_track_estimates(track=track,
estimates_dir=estimates_dir,
output_dir=output_dir)
def __init__(self, root, split, target, samples_per_track, seq_duration, dtype):
self.mus = musdb.DB(root = root, split = split)
self.split = split
self.samples_per_track = samples_per_track
self.seq_duration = seq_duration
self.dtype = dtype
self.target = target
def calculate_score(model,
model_weights_path,
musdb_dir='musdb',
n_workers=1,
n_fft=2048,
hop_length=512,
slice_duration=2):
mus = musdb.DB(root_dir=musdb_dir)
music_list = mus.load_mus_tracks(subsets='test')
model_weights = torch.load(model_weights_path)
model.load_state_dict(model_weights)
# model.cuda()
scores = parmap.map(calculate_SDR,
music_list,
pm_processes=n_workers,
pm_pbar=True,
model=model,
n_fft=n_fft,
hop_length=hop_length,
slice_duration=slice_duration)
print(scores)
print(np.mean(scores))
print(np.median(scores))
torch.save(scores, 'scores')
def __init__(self,
base_path: str,
subset: str,
split: str,
target: str,
duration: Optional[float],
samples: int = 1,
random: bool = False,
partitions: int = 1) -> None:
"""
base_path -- Ruta del dataset
subset -- Nombre del conjunto: 'train' o 'test'
split -- División del entrenamiento: 'train' o 'valid' cuando subset='train'
target -- Instrumento que se va a separar 'vocals', 'drums', 'bass' o 'vocal'
duration -- Duración de cada canción en segundos
samples -- Cantidad de muestras de cada cancion
random -- True si se van a mezclar las canciones de forma aleatoria
partitions -- Cantidad de particiones de las canciones de validación
"""
super(MUSDB18Dataset, self).__init__()
self.sample_rate = 44100 # Por ahora no se usa
self.split = split
self.target = target
self.duration = duration
self.samples = samples
self.random = random
self.partitions = partitions
self.mus = musdb.DB(root=base_path, subsets=subset, split=split)
def museval(inargs=None):
"""
Commandline interface for museval evaluation tools
"""
parser = argparse.ArgumentParser()
parser.add_argument('estimates_dir', type=str)
parser.add_argument('-o', help='output_dir')
parser.add_argument('--musdb', help='path to musdb', type=str)
parser.add_argument(
'--is-wav',
help='Read musdb wav instead of stems',
action='store_true',
)
args = parser.parse_args(inargs)
mus = musdb.DB(root=args.musdb, is_wav=args.is_wav)
if not args.o:
output_dir = args.estimates_dir
else:
output_dir = args.o
# evaluate an existing estimate folder with wav files
eval_mus_dir(
dataset=mus, # instance of musdb
estimates_dir=args.estimates_dir, # path to estiamte folder
output_dir=output_dir, # set a folder to write eval json files
)
def prepare_dataset(data_path,
subset=None,
path_to_save='./numpy_data',
processed_csv_path='./processed_dataset.csv',
resample_rate=None,
n_fft=2048,
hop_length=512,
slice_duration=2,
n_workers=1):
print('hop_length = ', hop_length)
mus = musdb.DB(root_dir=data_path)
music_list = mus.load_mus_tracks(subsets=subset)
print('Starting preparing dataset...')
if not os.path.exists(path_to_save):
os.makedirs(path_to_save)
processed_csv = pd.DataFrame(columns=['mix'] +
list(music_list[0].targets.keys()))
# p = multiprocessing.Pool(6)
rows = parmap.map(process_audio,
music_list,
processed_csv,
pm_pbar=True,
pm_processes=n_workers,
path_to_save=path_to_save,
n_fft=n_fft,
resample_rate=resample_rate,
hop_length=hop_length,
slice_duration=slice_duration)
for r in rows:
for n in r:
processed_csv.loc[len(processed_csv)] = n
processed_csv.to_csv(processed_csv_path, index=False)
def eval_mus_dir(dataset, estimates_dir, output_dir=None, *args, **kwargs):
"""Run musdb.run for the purpose of evaluation of musdb estimate dir
Parameters
----------
dataset : DB(object)
Musdb Database object.
estimates_dir : str
Path to estimates folder.
output_dir : str
Output folder where evaluation json files are stored.
*args
Variable length argument list for `musdb.run()`.
**kwargs
Arbitrary keyword arguments for `musdb.run()`.
"""
# create a new musdb instance for estimates with the same file structure
est = musdb.DB(root_dir=estimates_dir, is_wav=True)
# load all estimates track_names
est_tracks = est.load_mus_tracks()
# get a list of track names
tracknames = [t.name for t in est_tracks]
# load only musdb tracks where we have estimate tracks
tracks = dataset.load_mus_tracks(tracknames=tracknames)
# wrap the estimate loader
run_fun = functools.partial(_load_track_estimates,
estimates_dir=estimates_dir,
output_dir=output_dir)
# evaluate tracks
dataset.run(run_fun, estimates_dir=None, tracks=tracks, *args, **kwargs)
def __init__(
self,
frame_length=3,
sample_rate=44100,
num_worker=1,
MUSDB18_PATH="",
BIG_DATA=False,
additional_background_data=[],
additional_vocal_data=[],
):
np.random.seed(1)
self.sample_rate = sample_rate
self.wh = WaveHandler()
self.BIG_DATA = BIG_DATA
self.music_folders = []
for each in additional_background_data:
self.music_folders += self.readList(each)
self.vocal_folders = []
for each in additional_vocal_data:
self.vocal_folders += self.readList(each)
self.frame_length = frame_length
self.bac_file_num = len(self.music_folders)
self.voc_file_num = len(self.vocal_folders)
self.num_worker = num_worker
self.mus = musdb.DB(MUSDB18_PATH, is_wav=True, subsets='train')
self.pitch_shift_high = [2.0, 3.0, 4.0, 5.0, 6.0, 7.0]
self.pitch_shift_low = [-2.0, -3.0, -4.0, -5.0, -6.0, -7.0]
def score(dataset='musdb18'):
if dataset == 'musdb18':
# initiate musdb
mus = musdb.DB(root_dir="/data/musdb18")
tracks = mus.load_mus_tracks(
tracknames=['Music Delta - Gospel',
'Music Delta - Reggae',
'Music Delta - Rock',
'ANiMAL - Rockshow',
"Actions - Devil's Words",
'Johnny Lokke - Whisper To A Scream',
'Auctioneer - Our Future Faces',
'St Vitus - Word Gets Around',
'Strand Of Oaks - Spacestation',
'Sweet Lights - You Let Me Down'])
elif dataset == 'medleydb':
with open('preprocessing/resources/index_simple_test00.json', 'r') as f:
test_songs = json.load(f)
dataset_subset = mdb.load_multitracks(test_songs['id'])
tracks = []
for mtrack in dataset_subset:
tracks.append(MedleyTrack(mtrack))
# compute IBM stats
datas = []
for track in tracks:
estimates, data = IRM(track, alpha=2)
datas.append(data)
return datas
def __init__(self,
batch_size,
num_leading_frames,
num_trailing_frames,
frame_length=1024,
frame_step=512,
target_stem_id=1):
# download the db if needed
self._ensure_dataset_exists_locally()
self.database = musdb.DB(self.data_dirname() / 'musdb18')
# configuration
self.batch_size = batch_size
self.num_leading_frames = num_leading_frames
self.num_trailing_frames = num_trailing_frames
self.frame_length = frame_length
self.frame_step = frame_step
self.target_stem_id = target_stem_id
# expose dataset args for network shape
num_fft_bins = (self.frame_length // 2) + 1
frame_len_with_context = self.num_leading_frames + self.num_trailing_frames + 1
self.input_shape = (num_fft_bins * 2 * frame_len_with_context, )
self.output_shape = (num_fft_bins * 2, )
# internal state
self.train_tracks = None
self.test_tracks = None
self.track_idx = None
self.track_batch_idx = 0
self.current_track = None
self.padded_x_stft = None
self.padded_y_stft = None
def make_dataset(data_path, mode=None):
try:
mixture_array = sa.attach(f"shm://{mode}_mixture_array")
vocal_array = sa.attach(f"shm://{mode}_vocal_array")
except:
mus = musdb.DB(root=data_path, is_wav=True, subsets=mode)
mixture_list = list()
vocal_list = list()
for track in tqdm(mus):
#mixture_list.append(track.audio.sum(axis=-1))
mixture_list.append(norm(track.audio)[0])
#vocal_list.append(track.targets['vocals'].audio.sum(axis=-1))
vocal_list.append(norm(track.targets['vocals'].audio)[0])
mixture_array = np.concatenate(mixture_list)
vocal_array = np.concatenate(vocal_list)
assert mixture_array.shape == vocal_array.shape
mixture_array_sa = sa.create(f"shm://{mode}_mixture_array",
mixture_array.shape)
vocal_array_sa = sa.create(f"shm://{mode}_vocal_array",
vocal_array.shape)
mixture_array_sa[::] = mixture_array
vocal_array_sa[::] = vocal_array
return dict(mixture_array=mixture_array, vocal_array=vocal_array)
def loadSet(subset='train'):
'''
I did this so later we can directly call this function instead of running another piece of code
'''
# init objects
mus = musdb.DB(root_dir='../MUS-STEMS-SAMPLE')
db = loadDatabase()
### choose subset 'train' or 'test' or both (don't send any argument)
track_list = db.chooseSubset(subset)
#print 'track-list ', track_list
# check it's correctly working
#assert mus.test(db.loadTestTrack), "doesn't work"
if subset is 'train':
tracks = mus.run(db.loadTrainTrack,
estimates_dir='./Estimates',
tracks=track_list,
subsets=subset)
for i in tracks:
print i # why does this return None?
else:
tracks = mus.run(db.loadTestTrack,
estimates_dir='./Estimates',
tracks=track_list,
subsets=subset)
def compute_musdb_metrics(musdb_root, subset, result_root, metrics_root,
instruments, metrics):
dataset = musdb.DB(root=musdb_root, is_wav=True, subsets=[subset])
museval.eval_mus_dir(dataset=dataset,
estimates_dir=result_root,
output_dir=metrics_root)
songs = glob(os.path.join(metrics_root, subset, '*.json'))
metrics = {
instrument: {k: []
for k in metrics}
for instrument in instruments
}
for song in songs:
with open(song, 'r') as stream:
data = json.load(stream)
for target in data['targets']:
instrument = target['name']
for metric in metrics:
sdr_med = np.median([
frame['metrics'][metric] for frame in target['frames']
if not np.isnan(frame['metrics'][metric])
])
metrics[instrument][metric].append(sdr_med)
return metrics
def __init__(
self,
target='vocals',
root=None,
download=False,
is_wav=False,
subsets='train',
split='train',
seq_duration=6.0,
samples_per_track=64, #64,
source_augmentations=lambda audio: audio,
random_track_mix=False,
dtype=torch.float32,
seed=42,
*args,
**kwargs):
random.seed(seed)
self.is_wav = is_wav
self.seq_duration = seq_duration
self.target = target
self.subsets = subsets
self.split = split
self.samples_per_track = samples_per_track
self.source_augmentations = source_augmentations
self.random_track_mix = random_track_mix
self.mus = musdb.DB(root=root,
is_wav=is_wav,
split=split,
subsets=subsets,
download=download,
*args,
**kwargs)
self.sample_rate = 44100 # musdb is fixed sample rate
self.dtype = dtype
def test_audio_regression():
"""test audio loading capabilities"""
mus = musdb.DB(download=True)
s = 0
for track in mus:
s += track.audio.sum()
assert np.allclose(s, -24778.126983642578)
def evaluate(
adapter: str = AudioAdapterOption,
output_path: Path = AudioOutputOption,
stft_backend: STFTBackend = AudioSTFTBackendOption,
params_filename: str = ModelParametersOption,
mus_dir: Path = MUSDBDirectoryOption,
mwf: bool = MWFOption,
verbose: bool = VerboseOption,
) -> Dict:
"""
Evaluate a model on the musDB test dataset
"""
import numpy as np
configure_logger(verbose)
try:
import musdb
import museval
except ImportError:
logger.error("Extra dependencies musdb and museval not found")
logger.error("Please install musdb and museval first, abort")
raise Exit(10)
# Separate musdb sources.
songs = glob(join(mus_dir, EVALUATION_SPLIT, "*/"))
mixtures = [join(song, EVALUATION_MIXTURE) for song in songs]
audio_output_directory = join(output_path, EVALUATION_AUDIO_DIRECTORY)
separate(
deprecated_files=None,
files=mixtures,
adapter=adapter,
bitrate="128k",
codec=Codec.WAV,
duration=600.0,
offset=0,
output_path=join(audio_output_directory, EVALUATION_SPLIT),
stft_backend=stft_backend,
filename_format="{foldername}/{instrument}.{codec}",
params_filename=params_filename,
mwf=mwf,
verbose=verbose,
)
# Compute metrics with musdb.
metrics_output_directory = join(output_path, EVALUATION_METRICS_DIRECTORY)
logger.info("Starting musdb evaluation (this could be long) ...")
dataset = musdb.DB(root=mus_dir, is_wav=True, subsets=[EVALUATION_SPLIT])
museval.eval_mus_dir(
dataset=dataset,
estimates_dir=audio_output_directory,
output_dir=metrics_output_directory,
)
logger.info("musdb evaluation done")
# Compute and pretty print median metrics.
metrics = _compile_metrics(metrics_output_directory)
for instrument, metric in metrics.items():
logger.info(f"{instrument}:")
for metric, value in metric.items():
logger.info(f"{metric}: {np.median(value):.3f}")
return metrics
def main():
source_names = ["drums", "bass", "other", "vocals"]
random_order = True
np.random.seed(42)
channels = [0, 1]
path = '/tsi/doctorants/gcantisani/Datasets/MUSDB18/'
new_path = '/tsi/doctorants/gcantisani/Datasets/MUSDB18_UGOSA/'
os.makedirs(new_path, exist_ok=True)
# Iterate over all the tracks in the test set
test_set = musdb.DB(root=path, subsets=["test"], is_wav=False)
for idx in range(len(test_set)):
track = test_set.tracks[idx]
print('-------------------')
print(idx, str(track.name))
# copy the track object and associate the new path
new_track = cp(track)
new_track.path = os.path.join(new_path, track.subset, track.name)
os.makedirs(os.path.join(new_path, track.subset, track.name),
exist_ok=True)
# generate a random order of sources
if random_order:
sources = random.sample(source_names, 4)
print(sources)
# Load the mixture, make STFT, divide it into a number of
# segments equal to the number of sources and make ISTFT
# Transoform to STFT and then back to have smoothing at boarders
linear_mixture = track.targets['linear_mixture'].audio
stft_mixture = librosa.stft(linear_mixture[:, 0])
segment_len = stft_mixture.shape[1] // len(source_names)
new_references = []
for t, name in enumerate(sources):
audio = track.targets[name].audio
audio_new = np.zeros_like(audio)
win = slice(t * segment_len, (t + 1) * segment_len)
if t == len(source_names) - 1:
win = slice(t * segment_len, stft_mixture.shape[1])
for ch in channels:
stft = librosa.stft(audio[:, ch])
stft[:, win] = 0
istft = librosa.istft(stft)
audio_new[:, ch] = istft
new_track.sources[name].audio = audio_new
sf.write(os.path.join(new_track.path, name + '.wav'), audio_new,
track.rate)
new_references = np.stack(
[new_track.sources[name].audio for name in source_names])
audio_mix = new_references.sum(0)
sf.write(os.path.join(new_track.path, 'mixture.wav'), audio_mix,
track.rate)
def getMUSDB(database_path):
mus = musdb.DB(root_dir=database_path, is_wav=False)
subsets = list()
for subset in ["train", "test"]:
tracks = mus.load_mus_tracks(subset)
samples = list()
# Go through tracks
for track in tracks:
# Skip track if mixture is already written, assuming this track is done already
track_path = track.path[:-4]
mix_path = track_path + "_mix.wav"
acc_path = track_path + "_accompaniment.wav"
if os.path.exists(mix_path):
print("WARNING: Skipping track " + mix_path + " since it exists already")
# Add paths and then skip
paths = {"mix" : mix_path, "accompaniment" : acc_path}
paths.update({key : track_path + "_" + key + ".wav" for key in ["bass", "drums", "other", "vocals"]})
samples.append(paths)
continue
rate = track.rate
# Go through each instrument
paths = dict()
stem_audio = dict()
for stem in ["bass", "drums", "other", "vocals"]:
path = track_path + "_" + stem + ".wav"
audio = track.targets[stem].audio
soundfile.write(path, audio, rate, "PCM_16")
stem_audio[stem] = audio
paths[stem] = path
# Add other instruments to form accompaniment
acc_audio = np.clip(sum([stem_audio[key] for key in list(stem_audio.keys()) if key != "vocals"]), -1.0, 1.0)
soundfile.write(acc_path, acc_audio, rate, "PCM_16")
paths["accompaniment"] = acc_path
# Create mixture
mix_audio = track.audio
soundfile.write(mix_path, mix_audio, rate, "PCM_16")
paths["mix"] = mix_path
diff_signal = np.abs(mix_audio - acc_audio - stem_audio["vocals"])
print("Maximum absolute deviation from source additivity constraint: " + str(np.max(diff_signal)))# Check if acc+vocals=mix
print("Mean absolute deviation from source additivity constraint: " + str(np.mean(diff_signal)))
samples.append(paths)
subsets.append(samples)
return subsets
def getMUSDB(database_path):
mus = musdb.DB(root_dir=database_path, is_wav=False)
subsets = list()
for subset in ["train", "test"]:
tracks = mus.load_mus_tracks(subset)
samples = list()
for track in tracks:
# Get mix and instruments
# Bass
bass_path = track.path[:-4] + "_bass.wav"
bass_audio = track.sources["bass"].audio
write_wav_skip_existing(bass_path, bass_audio, track.rate)
bass = Sample(bass_path, track.rate, track.audio.shape[1], track.duration)
# Drums
drums_path = track.path[:-4] + "_drums.wav"
drums_audio = track.sources["drums"].audio
write_wav_skip_existing(drums_path, drums_audio, track.rate)
drums = Sample(drums_path, track.rate, track.audio.shape[1], track.duration)
# Other
other_path = track.path[:-4] + "_other.wav"
other_audio = track.sources["other"].audio
write_wav_skip_existing(other_path, other_audio, track.rate)
other = Sample(other_path, track.rate, track.audio.shape[1], track.duration)
# Vocals
vocal_path = track.path[:-4] + "_vocals.wav"
vocal_audio = track.sources["vocals"].audio
write_wav_skip_existing(vocal_path, vocal_audio, track.rate)
vocal = Sample(vocal_path, track.rate, track.audio.shape[1], track.duration)
# Add other instruments to form accompaniment
acc_audio = track.sources["drums"].audio + track.sources["bass"].audio + track.sources["other"].audio
acc_path = track.path[:-4] + "_accompaniment.wav"
write_wav_skip_existing(acc_path, acc_audio, track.rate)
acc = Sample(acc_path, track.rate, track.audio.shape[1], track.duration)
# Create mixture
mix_path = track.path[:-4] + "_mix.wav"
mix_audio = track.audio
write_wav_skip_existing(mix_path, mix_audio, track.rate)
mix = Sample(mix_path, track.rate, track.audio.shape[1], track.duration)
diff_signal = np.abs(mix_audio - bass_audio - drums_audio - other_audio - vocal_audio)
print("Maximum absolute deviation from source additivity constraint: " + str(np.max(diff_signal)))# Check if acc+vocals=mix
print("Mean absolute deviation from source additivity constraint: " + str(np.mean(diff_signal)))
samples.append((mix, acc, bass, drums, other, vocal)) # Collect all sources for now. Later on for SVS: [mix, acc, vocal] Multi-instrument: [mix, bass, drums, other, vocals]
subsets.append(samples)
return subsets
def test_download_and_validation():
mus_all = musdb.DB(download=True)
assert len(mus_all) == 144
for track in mus_all:
assert track.audio.shape[1] > 0
assert track.audio.shape[-1] == 2
assert track.stems.shape[0] == 5
mus_test = musdb.DB(download=True, subsets='test', split=None)
assert len(mus_test) == 50
mus_train = musdb.DB(download=True, subsets='train', split='train')
assert len(mus_train) == 80
# test validation set
mus_valid = musdb.DB(download=True, subsets='train', split='valid')
assert len(mus_valid) == 14
assert len(mus_train) == len(mus_all) - len(mus_test) - len(mus_valid)
def __init__(self, param: DatasetParam, musdb_subsets: str = 'train', max_decoded: int = 100, **kwargs):
if max_decoded < 1:
raise ValueError("max_decoded must be greater than 0!")
self.param = param
self.tracks = list(
musdb.DB(root=param.dataset_path, subsets=musdb_subsets))
self.num_tracks = len(self.tracks)
self.decoded = [None] * self.num_tracks
self.num_decoded = 0
self.max_decoded = max_decoded
self.ord_decoded = [-1] * self.num_tracks
self.next_ord = 0
def make_dataset(data_path, mode=None):
mus = musdb.DB(root=data_path, is_wav=True, subsets="test")
mixture_list = list()
vocal_list = list()
for track in tqdm(mus):
mixture_list.append(track.audio.sum(axis=-1))
vocal_list.append(track.targets['vocals'].audio.sum(axis=-1))
mixture_array = np.concatenate(mixture_list)
vocal_array = np.concatenate(vocal_list)
assert mixture_array.shape == vocal_array.shape
return dict(mixture_array=mixture_array, vocal_array=vocal_array)
def __init__(self, musdb_root='data/musdb18_wav/', is_wav=True):
self.musdb_train = musdb.DB(root=musdb_root,
subsets="train",
split='train',
is_wav=is_wav)
self.musdb_valid = musdb.DB(root=musdb_root,
subsets="train",
split='valid',
is_wav=is_wav)
self.musdb_test = musdb.DB(root=musdb_root,
subsets="test",
is_wav=is_wav)
if len(self.musdb_train) > 0:
pass
else:
raise FileNotFoundError(
'\n1. musdb_root does exist or is not a valid path. \n'
'2. please try a valid path for --musdb_root \n'
'3. You should also check whether the given musdb path is wave-filed version'
' (i.e., --musdb_is_wav True) or not.')
def main():
parser = argparse.ArgumentParser('rawset')
parser.add_argument('--workers', type=int, default=10)
parser.add_argument('--samplerate', type=int, default=44100)
parser.add_argument('--channels', type=int, default=2)
parser.add_argument('musdb', type=Path)
parser.add_argument('destination', type=Path)
args = parser.parse_args()
build_raw(musdb.DB(root=args.musdb, subsets=["train"], split="train"),
args.destination / "train",
normalize=True,
channels=args.channels,
samplerate=args.samplerate,
workers=args.workers)
build_raw(musdb.DB(root=args.musdb, subsets=["train"], split="valid"),
args.destination / "valid",
normalize=True,
samplerate=args.samplerate,
channels=args.channels,
workers=args.workers)
def produce_musdb_source_estimates(model_config, load_model, musdb_path, output_path, subsets=None):
'''
Predicts source estimates for MUSDB for a given model checkpoint and configuration, and evaluate them.
:param model_config: Model configuration of the model to be evaluated
:param load_model: Model checkpoint path
:return:
'''
print("Evaluating trained model saved at " + str(load_model)+ " on MUSDB and saving source estimate audio to " + str(output_path))
mus = musdb.DB(root_dir=musdb_path)
predict_fun = lambda track : predict(track, model_config, load_model, output_path)
assert(mus.test(predict_fun))
mus.run(predict_fun, estimates_dir=output_path, subsets=subsets)
def produce_source_estimates(model_config, load_model, musdb_path, output_path, subsets=None):
'''
Predicts source estimates for MUSDB for a given model checkpoint and configuration, and evaluate them.
:param model_config: Model configuration of the model to be evaluated
:param load_model: Model checkpoint path
:return:
'''
prediction_parameters = [model_config, load_model]
with open("prediction_params.pkl", "wb") as file:
pickle.dump(prediction_parameters, file)
mus = musdb.DB(root_dir=musdb_path)
#if mus.test(predict):
# print "Function is valid"
mus.run(predict, estimates_dir=output_path, subsets=subsets)