earthspecies / cornell-birdcall-competition-starter-pack Goto Github PK

The last two cells of the notebook are:

mkdir -p data/npy/shifted

for recording in Path('data/shifted/').iterdir():
    x = sf.read(recording)[0]
    x = audio_to_melspec(x).astype(np.float32)
    np.save(f'data/npy/shifted/{recording.stem}.npy', x)

Yet data/shifted has never been populated if you run notebooks 00, 01, 01a, 01b, 01c

In 01b the MelspecPoolWithShiftedDataset is created and has the ability to return files read from data/shifted but yet it's not created or used yet. Then at the end of 01c an attempt is made to iterate through data/shifted to produce shifted spectrograms in data/npy/shifted.

In notebook 01b_melspectogram_dataset_for_pool.ipynb, cell 16 tries to read data/class2train_items.pkl but this file has not been created yet. From what I can see its not created until 02j_train_on_melspectograms_pytorch_lme_pool_all_classes_simple.ipynb much later in the tutorial.

classes = pd.read_pickle('data/classes.pkl')
train_ds = MelspecPoolDataset(pd.read_pickle('data/class2train_items.pkl'), classes)

What code should be before this cell to generate the file? I think perhaps that cell just got put in by mistake as all it does is create train_ds which we already did in the previous cell.