How to use the audiomentations.augmentations.transforms.ClippingDistortion function in audiomentations

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github iver56 / audiomentations / tests / test_clipping_distortion.py View on Github external
def test_distort(self):
        sample_len = 1024
        samples_in = np.random.normal(0, 1, size=sample_len).astype(np.float32)
        sample_rate = 16000
        augmenter = Compose(
            [
                ClippingDistortion(
                    min_percentile_threshold=0, max_percentile_threshold=40, p=1.0
                )
            ]
        )

        samples_out = augmenter(samples=samples_in, sample_rate=sample_rate)
        self.assertEqual(samples_out.dtype, np.float32)
        self.assertEqual(len(samples_out), sample_len)
        self.assertLessEqual(sum(abs(samples_out)), sum(abs(samples_in)))