soundmentations.StartTrim¶

class soundmentations.StartTrim(start_time: float = 0.0, p: float = 1.0)[source]¶

Bases: BaseTrim

Trim audio to keep only the portion starting from start_time to the end.

This removes the beginning of the audio up to start_time, keeping everything after that point.

Parameters:

start_time (float, optional) – Start time in seconds to begin keeping audio, by default 0.0. Must be non-negative.
p (float, optional) – Probability of applying the transform, by default 1.0.

Examples

Remove silence from beginning:

>>> import numpy as np
>>> from soundmentations.transforms.time import StartTrim
>>>
>>> # Remove first 2 seconds
>>> trim_transform = StartTrim(start_time=2.0)
>>> trimmed = trim_transform(audio, sample_rate=44100)

Use in preprocessing pipeline:

>>> import soundmentations as S
>>>
>>> # Remove intro and normalize
>>> preprocess = S.Compose([
...     S.StartTrim(start_time=1.5, p=1.0),
...     S.PadToLength(pad_length=132300, p=1.0)  # 3 seconds
... ])
>>>
>>> processed = preprocess(raw_audio, sample_rate=44100)