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this doesn't seem ideal, but we can't add "inf" values to the hoplite db, and don't want to rescale or normalize because the hoplite db doesn't contain any additional scaling metadata
untested! need to check implementation and see how it works
this is a pretty big refactor aimed at making things like the BMZ Perch2/Birdnet/TF models and ONNXModel only need to implement batch_forward() and otherwise be able to use SpectrogramPreprocessor methods like .predict() and .embed() The strategy is that you implement batch_forward as appropraite for the class, and it returns a dictionary of outputs. Then predict() and embed() just need to make the dataloader with self.predict_dataloader(), iterate the dataloader to get batches, call batch_forward() on each batch, and aggregate the results across batches. Some things in the tutorials are likely broken after this refactor, I haven't run/tested/checked them.
the DataLoader needs to return lists of AudioSample anyways for other parts of the code to work, so we can specify using collate_audio_samples to get the sample.data and sample.labels of each sample after getting a batch of AudioSamples from a dataloader. This reduces complexity/confusion.
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