def METHOD_NAME(self) -> None:
    @dataclass
    class AudioConfig(Coqpit):
        sample_rate: int = 22050
        fft_size: int = 1024
        num_mels: int = 256
        mel_fmax: int = 1800
        mel_fmin: int = 0
        hop_length: int = 256
        win_length: int = 1024
        pitch_fmax: int = 640
        pitch_fmin: int = 1
        trim_db: int = -1
        min_silence_sec: float = 0.01
        gain: float = 1.0
        base: float = 10.0
    self.config = AudioConfig()
    self.sample_wav, _ = librosa.load(WAV_FILE, sr=self.config.sample_rate)