toolbox/k2_sherpa/utils.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import librosa
import numpy as np
from scipy.io import wavfile


def audio_convert(in_filename: str,
                  out_filename: str,
                  sample_rate: int = 16000):
    signal, _ = librosa.load(in_filename, sr=sample_rate)
    signal *= 32768.0
    signal = np.array(signal, dtype=np.int16)

    wavfile.write(
        out_filename,
        rate=sample_rate,
        data=signal
    )
    return out_filename


if __name__ == "__main__":
    pass