f1271b4ce81cdecc940b8ffa8a1f12c3476ef01f,utils/audio.py,AudioProcessor,_griffin_lim,#AudioProcessor#Any#,110

Before Change

        for i in range(self.griffin_lim_iters):
            S_t = self._istft(S_best)
            est = self._stft(S_t)
            phase = est / np.maximum(1e-8, np.abs(est))
            S_best = S * phase
        S_t = self._istft(S_best)
        y = np.real(S_t)
        return y

After Change

    def _griffin_lim(self, S):
        angles = np.exp(2j * np.pi * np.random.rand(*S.shape))
        S_complex = np.abs(S).astype(np.complex)
        y = self._istft(S_complex * angles)
        for i in range(self.griffin_lim_iters):
            angles = np.exp(1j * np.angle(self._stft(y)))
            y = self._istft(S_complex * angles)
        return y

Instances