dataloader.dataset.cuts()

[EmreOzkose]

Hello,

I trained a tdnn-lstm model successfully. However when I want to continue with decoding, this error occurs:

$ python tdnn_lstm_ctc/decode.py
2021-08-19 09:24:07,705 INFO [decode.py:319] Decoding started
2021-08-19 09:24:07,705 INFO [decode.py:320] {'exp_dir': PosixPath('tdnn_lstm_ctc/exp2'), 'lang_dir': PosixPath('data/lang_phone'), 'lm_dir': PosixPath('data/lm'), 'feature_dim': 80, 'subsampling_factor': 3, 'search_beam': 20, 'output_beam': 5, 'min_active_states': 30, 'max_active_states': 10000, 'use_double_scores': True, 'method': '1best', 'num_paths': 30, 'epoch': 9, 'avg': 5, 'feature_dir': PosixPath('data/fbank'), 'max_duration': 500.0, 'bucketing_sampler': False, 'num_buckets': 30, 'concatenate_cuts': True, 'duration_factor': 1.0, 'gap': 1.0, 'on_the_fly_feats': False, 'full_libri': False}
2021-08-19 09:24:07,974 INFO [lexicon.py:96] Loading pre-compiled data/lang_phone/Linv.pt
2021-08-19 09:24:08,077 INFO [decode.py:329] device: cuda:0
2021-08-19 09:24:20,422 INFO [decode.py:387] averaging ['tdnn_lstm_ctc/exp2/epoch-5.pt', 'tdnn_lstm_ctc/exp2/epoch-6.pt', 'tdnn_lstm_ctc/exp2/epoch-7.pt', 'tdnn_lstm_ctc/exp2/epoch-8.pt', 'tdnn_lstm_ctc/exp2/epoch-9.pt']
Traceback (most recent call last):
  File "tdnn_lstm_ctc/decode.py", line 419, in <module>
    main()
  File "path/to/env/miniconda3/envs/k2/lib/python3.8/site-packages/torch/autograd/grad_mode.py", line 27, in decorate_context
    return func(*args, **kwargs)
  File "tdnn_lstm_ctc/decode.py", line 402, in main
    results_dict = decode_dataset(
  File "tdnn_lstm_ctc/decode.py", line 239, in decode_dataset
    tot_num_cuts = len(dl.dataset.cuts)
AttributeError: 'K2SpeechRecognitionDataset' object has no attribute 'cuts'

The line is that: tot_num_cuts = len(dl.dataset.cuts)

I checked source code and there is not a .cuts attiribute/function. I think number of cuts should be equal to number of sample when each segment is audio itself. So, we can remove .cuts and tot_num_cuts = len(dl.dataset) should be okey for Librispeech?

[csukuangfj]

Sorry, will commit a fix. I was using an old version of lhotse.

[EmreOzkose]

Thank you for quick reply :).

[csukuangfj]

@EmreOzkose
Please pull the latest master. It's been fixed in #12

[EmreOzkose]

You are really fast team :) Thank you.