examples/sound_play_speed/by_pydub.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-
"""
这调整的是播放速度, 会改变声音的频率.
"""
import argparse
import os.path

from pydub import AudioSegment
from pydub.playback import play

from project_settings import project_path


def get_args():
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--filename",
        default=(project_path / "data/voice_clone_audio/e2_tts/audio_0_3_clone_from_audio_0_2.wav").as_posix(),
        type=str,
    )
    parser.add_argument(
        "--output_file",
        default="temp.wav",
        type=str,
    )
    parser.add_argument("--speed", default=1.3, type=float)
    args = parser.parse_args()
    return args


def main():
    args = get_args()

    sound = AudioSegment.from_wav(args.filename)
    altered_sound  = sound._spawn(sound.raw_data, overrides={
        "frame_rate": int(sound.frame_rate * args.speed)
    })
    altered_sound .set_frame_rate(sound.frame_rate)

    # play(altered_sound)

    if os.path.exists(args.output_file):
        os.remove(args.output_file)
    altered_sound.export(args.output_file, format="wav")

    return


if __name__ == "__main__":
    main()