Data Augmentation on 1D Signal image

[ptrblck]

@brunoj

Now my problem is how can I fix it? why it is happening ?

You didn’t explain the issue, so I don’t know what exactly is unexpected.

@brunoj

besides as I said i need class balance but how will I ensure that classes got balanced. ?

You could use a WeightedRandomSampler as explained e.g. here assuming you are working on a multi-class classification.