32 lines
980 B
Python
32 lines
980 B
Python
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"""Contains the volume perturb augmentation model."""
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import random
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from mvector.data_utils.audio import AudioSegment
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from mvector.data_utils.augmentor.base import AugmentorBase
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class ShiftPerturbAugmentor(AugmentorBase):
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"""添加随机位移扰动的增强模型
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:param min_shift_ms: Minimal shift in milliseconds.
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:type min_shift_ms: float
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:param max_shift_ms: Maximal shift in milliseconds.
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:type max_shift_ms: float
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"""
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def __init__(self, min_shift_ms, max_shift_ms):
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self._min_shift_ms = min_shift_ms
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self._max_shift_ms = max_shift_ms
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def transform_audio(self, audio_segment: AudioSegment):
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"""Shift audio.
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Note that this is an in-place transformation.
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:param audio_segment: Audio segment to add effects to.
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:type audio_segment: AudioSegmenet|SpeechSegment
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"""
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shift_ms = random.uniform(self._min_shift_ms, self._max_shift_ms)
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audio_segment.shift(shift_ms)
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