TCNTempoDetector fails with IndexError: list index out of range

[alastair]

Expected behaviour

I'm running the TCNTempoDetector from the latest git installed in a virtualenv.

The error occurs with both mp3 and wav input.

TempoDetector works as expected.

Actual behaviour

$ TCNTempoDetector single song.wav 
Traceback (most recent call last):
  File "/Users/alastair/code/env/bin/TCNTempoDetector", line 107, in <module>
    main()
  File "/Users/alastair/code/env/bin/TCNTempoDetector", line 103, in main
    args.func(processor, **vars(args))
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 599, in process_single
    _process((processor, infile, outfile, kwargs))
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 283, in _process
    return process_tuple[0](*process_tuple[1:-1], **process_tuple[-1])
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 114, in __call__
    return self.process(*args, **kwargs)
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 573, in process
    data = _process((self.in_processor, data, kwargs))
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 283, in _process
    return process_tuple[0](*process_tuple[1:-1], **process_tuple[-1])
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 114, in __call__
    return self.process(*args, **kwargs)
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 418, in process
    data = _process((processor, data, kwargs))
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 283, in _process
    return process_tuple[0](*process_tuple[1:-1], **process_tuple[-1])
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 114, in __call__
    return self.process(*args, **kwargs)
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 418, in process
    data = _process((processor, data, kwargs))
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/processors.py", line 285, in _process
    return process_tuple[0](*process_tuple[1:-1])
  File "/Users/alastair/code/env/lib/python3.7/site-packages/madmom/ml/nn/__init__.py", line 49, in average_predictions
    if isinstance(predictions[0], tuple):
IndexError: list index out of range

Information about installed software

Please provide some information about installed software.

0.17.dev0
1.21.5
1.7.3

[superbock]

The error message is misleading, I fixed it. It stems from no nn_files being available to be loaded. Please update the models submodule by running git submodule update, it should be fixed then.

[alastair]

thanks for the quick comment! I installed this directly into the virtualenv with pip install git+https://github.com/CPJKU/madmom.git, so maybe pip doesn't init the submodules before it installs?

I did git submodule update, then ran pip install . with my venv activated. I see the files in the env:

$ ls env/lib/python3.7/site-packages/madmom/models/beats/2016
beats_lstm_1.pkl beats_lstm_2.pkl beats_lstm_3.pkl beats_lstm_4.pkl beats_lstm_5.pkl beats_lstm_6.pkl beats_lstm_7.pkl beats_lstm_8.pkl

However, I think it's looking for models.BEATS_TCN, right? and I see no 2019 directory in the beats models folder, only 2015 and 2016.

I have current git master checked out ( 3bc8334) and my submodules are

$ git submodule status
 7e3dc1b0cad499792767074d03c38b194b9b0a79 madmom/models (heads/master)

[alastair]

I updated the submodule to master of @CPJUK/madmom_models, and updated setup.py to install the 2019 models and it works, thanks!

[superbock]

Can you please check which version of madmom/models you have? Please do a git status inside the before-mentioned directory to see if you're at commit 7e3dc1.

[superbock]

Great!