pulsatrix::ResampleTransform Class Reference

Resamples a waveform (sample.fields[0], shape (1, channels, num_samples) – WavReader's/AudioFolderDataset's convention) from source_sample_rate to target_sample_rate via linear interpolation. More...

#include <audio_transforms.hpp>

Inheritance diagram for pulsatrix::ResampleTransform:

Collaboration diagram for pulsatrix::ResampleTransform:

Public Member Functions
	ResampleTransform (int target_sample_rate, int source_sample_rate, DeviceBackend *backend)
Sample	apply (Sample sample) const override
	Applies this transform to a sample.
Public Member Functions inherited from pulsatrix::Transform
virtual	~Transform ()=default

Detailed Description

Resamples a waveform (sample.fields[0], shape (1, channels, num_samples) – WavReader's/AudioFolderDataset's convention) from source_sample_rate to target_sample_rate via linear interpolation.

Note

Waveform-only representation (campaign_exai_dl_library_data_pipeline Decision Point 4's Mission 12 sub-decision) – a spectrogram transform is explicitly descoped, not silently dropped: a real STFT/mel-spectrogram needs an FFT implementation, a meaningfully larger undertaking than resampling.

Needs a DeviceBackend to allocate the differently-shaped output Tensor, matching ResizeTransform/CenterCropTransform's (Phase 2) precedent.

Constructor & Destructor Documentation

ResampleTransform()

pulsatrix::ResampleTransform::ResampleTransform ( int  target_sample_rate, int  source_sample_rate, DeviceBackend *  backend  )

inline

Member Function Documentation

apply()

Sample pulsatrix::ResampleTransform::apply ( Sample  sample ) const

overridevirtual

Applies this transform to a sample.

Parameters

sample

Input sample.

Returns

The transformed sample.

Implements pulsatrix::Transform.

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The documentation for this class was generated from the following file:

• include/pulsatrix/audio_transforms.hpp