def getMedleyDB(xml_path):
tree = etree.parse(xml_path)
root = tree.getroot()
db_path = root.find("./databaseFolderPath").text
mixes, accs, vocals = list(), list(), list()
tracks = root.xpath(".//track")
for track in tracks:
instrument_paths = list()
# Mix together vocals, if they exist
vocal_tracks = track.xpath(".//instrument[instrumentName='Voice']/relativeFilepath") + \
track.xpath(".//instrument[instrumentName='Voice']/relativeFilepath") + \
track.xpath(".//instrument[instrumentName='Voice']/relativeFilepath")
if len(
vocal_tracks
) > 0: # If there are vocals, get their file paths and mix them together
vocal_track = Input.Input.add_audio(
[db_path + os.path.sep + f.text for f in vocal_tracks],
"vocalmix")
instrument_paths.append(vocal_track)
vocals.append(Sample.from_path(vocal_track))
else: # Otherwise append duration of track so silent input can be generated later on-the-fly
duration = float(
track.xpath("./instrumentList/instrument/length")[0].text)
vocals.append(duration)
# Mix together accompaniment, if it exists
acc_tracks = track.xpath(
".//instrument[not(instrumentName='Voice') and not(instrumentName='Mix') and not(instrumentName='Instrumental')]/relativeFilepath"
) #TODO # We assume that there is no distinction between male/female here
if len(
acc_tracks
) > 0: # If there are vocals, get their file paths and mix them together
acc_track = Input.Input.add_audio(
[db_path + os.path.sep + f.text for f in acc_tracks], "accmix")
instrument_paths.append(acc_track)
accs.append(Sample.from_path(acc_track))
else: # Otherwise append duration of track so silent input can be generated later on-the-fly
duration = float(
track.xpath("./instrumentList/instrument/length")[0].text)
accs.append(duration)
# Mix together vocals and accompaniment
mix_track = Input.Input.add_audio(instrument_paths, "totalmix")
mixes.append(Sample.from_path(mix_track))
return [mixes, accs, vocals]
def getVocalFMA(database_path, audio_path=None):
if audio_path is None:
audio_path = database_path
track_csv = os.path.join(database_path, "fma_metadata", "raw_tracks.csv")
sample_list = list()
with open(track_csv, 'rb') as csvfile:
reader = csv.DictReader(csvfile)
for row in reader:
if not int(row["track_instrumental"]):
track_id = int(row["track_id"])
filename = '{:06d}'.format(track_id) + ".mp3"
folder_id = track_id // 1000
foldername = '{:03d}'.format(folder_id)
audio_file = os.path.join(audio_path, "fma_full", foldername, filename)
print("Reading in metadata of file " + audio_file)
try:
sample = Sample.from_path(audio_file)
except Exception as e:
print("Skipping sample at path " + audio_file)
print(e)
continue
sample_list.append(sample)
return sample_list
def get_samples_in_folder(audio_path, extension):
audio_file_list = getAllFilesOfType(audio_path, extension)
sample_list = list()
for audio_file in audio_file_list:
print("Reading in metadata of file " + audio_file)
try:
sample = Sample.from_path(audio_file)
except Exception:
print("Skipping sample at path " + audio_path)
continue
sample_list.append(sample)
assert(len(sample_list) > 0) # If we did not find any samples something must have gone wrong
return sample_list
