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