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- import os
- import argparse
- import librosa
- from multiprocessing import Pool, cpu_count
-
- import soundfile
- from tqdm import tqdm
-
- from config import config
-
-
- def process(item):
- spkdir, wav_name, args = item
- wav_path = os.path.join(args.in_dir, spkdir, wav_name)
- if os.path.exists(wav_path) and wav_path.lower().endswith(".wav"):
- wav, sr = librosa.load(wav_path, sr=args.sr)
- soundfile.write(os.path.join(args.out_dir, spkdir, wav_name), wav, sr)
-
-
- if __name__ == "__main__":
- parser = argparse.ArgumentParser()
- parser.add_argument(
- "--sr",
- type=int,
- default=config.resample_config.sampling_rate,
- help="sampling rate",
- )
- parser.add_argument(
- "--in_dir",
- type=str,
- default=config.resample_config.in_dir,
- help="path to source dir",
- )
- parser.add_argument(
- "--out_dir",
- type=str,
- default=config.resample_config.out_dir,
- help="path to target dir",
- )
- parser.add_argument(
- "--processes",
- type=int,
- default=0,
- help="cpu_processes",
- )
- args, _ = parser.parse_known_args()
- # autodl 无卡模式会识别出46个cpu
- if args.processes == 0:
- processes = cpu_count() - 2 if cpu_count() > 4 else 1
- else:
- processes = args.processes
- pool = Pool(processes=processes)
-
- tasks = []
-
- for dirpath, _, filenames in os.walk(args.in_dir):
- # 子级目录
- spk_dir = os.path.relpath(dirpath, args.in_dir)
- spk_dir_out = os.path.join(args.out_dir, spk_dir)
- if not os.path.isdir(spk_dir_out):
- os.makedirs(spk_dir_out, exist_ok=True)
- for filename in filenames:
- if filename.lower().endswith(".wav"):
- twople = (spk_dir, filename, args)
- tasks.append(twople)
-
- for _ in tqdm(
- pool.imap_unordered(process, tasks),
- ):
- pass
-
- pool.close()
- pool.join()
-
- print("音频重采样完毕!")
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