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Running
on
Zero
Running
on
Zero
File size: 2,554 Bytes
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# Copyright (c) 2023 Amphion.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import os
import glob
import librosa
import json
from utils.util import has_existed
from preprocessors import GOLDEN_TEST_SAMPLES
def main(output_path, dataset_path):
print("-" * 10)
print("Preparing training dataset for svcc...")
data_dir = os.path.join(dataset_path, "Data")
save_dir = os.path.join(output_path, "svcc")
os.makedirs(save_dir, exist_ok=True)
singer_dict_file = os.path.join(save_dir, "singers.json")
utt2singer_file = os.path.join(save_dir, "utt2singer")
utt2singer = open(utt2singer_file, "w")
# Load utterances
train = []
test = []
singers = []
for wav_file in glob.glob(os.path.join(data_dir, "*/*.wav")):
singer, filename = wav_file.split("/")[-2:]
uid = filename.split(".")[0]
utt = {
"Dataset": "svcc",
"Singer": singer,
"Uid": "{}_{}".format(singer, uid),
"Path": wav_file,
}
# Duration
duration = librosa.get_duration(filename=wav_file)
utt["Duration"] = duration
if utt["Uid"] in GOLDEN_TEST_SAMPLES["svcc"]:
test.append(utt)
else:
train.append(utt)
singers.append(singer)
utt2singer.write("{}\t{}\n".format(utt["Uid"], utt["Singer"]))
# Save singers.json
unique_singers = list(set(singers))
unique_singers.sort()
singer_lut = {name: i for i, name in enumerate(unique_singers)}
with open(singer_dict_file, "w") as f:
json.dump(singer_lut, f, indent=4, ensure_ascii=False)
train_total_duration = sum([utt["Duration"] for utt in train])
test_total_duration = sum([utt["Duration"] for utt in test])
for dataset_type in ["train", "test"]:
output_file = os.path.join(save_dir, "{}.json".format(dataset_type))
if has_existed(output_file):
continue
utterances = eval(dataset_type)
utterances = sorted(utterances, key=lambda x: x["Uid"])
for i in range(len(utterances)):
utterances[i]["index"] = i
print("{}: Total size: {}\n".format(dataset_type, len(utterances)))
# Save
with open(output_file, "w") as f:
json.dump(utterances, f, indent=4, ensure_ascii=False)
print(
"#Train hours= {}, #Test hours= {}".format(
train_total_duration / 3600, test_total_duration / 3600
)
)
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