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Pre-loading background noise (and IR) in init?

See original GitHub issue

If one of the objective of torch-audiomentations is to do fast augmentation on GPU as part of a larger network, reading from disk for each new audio sample would slow down the forward pass dramatically, wouldn’t it?

https://github.com/asteroid-team/torch-audiomentations/blob/02752c9d6b7892c67d541af0c5279ec00f8216e3/torch_audiomentations/augmentations/background_noise.py#L47-L51

Would it make sense to allow the user to preload the whole background noise collection in memory during __init__ and then read from memory in apply_transform?

Or, if the background noise collection is too big to fit in memory, we could load a bunch of them, use them for a while, and then load another (random) bunch of them, etc.

Issue Analytics

State:
Created 3 years ago
Reactions:2
Comments:5 (2 by maintainers)

Top GitHub Comments

2reactions

mparientecommented, Oct 9, 2020

I usually have 64GB or more of RAM but quite slow I/O, so yes, it makes complete sense.

Or, if the background noise collection is too big to fit in memory, we could load a bunch of them, use them for a while, and then load another (random) bunch of them, etc.

This is more complicated, because you don’t know what the user can afford etc… But still doable. But the first option is definitely possible and a preload_wavs flag or something like that could completely do the job.

1reaction

hbredincommented, Oct 9, 2020

Yes. Big RAM, slow I/O as well, here 😃

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