audio_reader.py 文件源码

def norm_audio(self):
        '''Normalize the audio files
        used before training using a independent script'''
        for file in self.audiofiles:
            audio, sr = librosa.load(file, sr=16000)
            div_fac = 1 / np.max(np.abs(audio)) / 3.0
            audio = audio * div_fac
            librosa.output.write_wav(file, audio, sr)
        for file in self.noisefiles:
            audio, sr = librosa.load(file, sr=16000)
            div_fac = 1 / np.max(np.abs(audio)) / 3.0
            audio = audio * div_fac
            librosa.output.write_wav(file, audio, sr)