Error with change detection

[nikopartanen]

I went through the Speech Activity Detection tutorial succesfully, and the resulting test mdtm files look good in what it comes to basic segmentation, but there are some problems with Change Detection tutorial.

I get the same error now when I try evaluate and apply commands:

Using Theano backend.
Traceback (most recent call last):
  File "/Users/niko/anaconda3/envs/pyannote/bin/pyannote-change-detection", line 11, in <module>
    load_entry_point('pyannote.audio', 'console_scripts', 'pyannote-change-detection')()
  File "/Users/niko/pyannote_test/pyannote-audio/pyannote/audio/applications/change_detection.py", line 392, in main
    epoch=epoch, min_duration=min_duration)
  File "/Users/niko/pyannote_test/pyannote-audio/pyannote/audio/applications/change_detection.py", line 268, in evaluate
    predictions[uri] = aggregation.apply(dev_file)
  File "/Users/niko/pyannote_test/pyannote-audio/pyannote/audio/labeling/aggregation.py", line 120, in apply
    predictions = next(self.from_file(current_file))
  File "/Users/niko/anaconda3/envs/pyannote/lib/python3.5/site-packages/pyannote/generators/batch.py", line 365, in from_file
    incomplete=incomplete):
  File "/Users/niko/anaconda3/envs/pyannote/lib/python3.5/site-packages/pyannote/generators/batch.py", line 418, in __call__
    for fragment in self.generator.from_file(preprocessed_file):
  File "/Users/niko/anaconda3/envs/pyannote/lib/python3.5/site-packages/pyannote/generators/fragment.py", line 148, in from_file
    wav = current_file['wav']
KeyError: 'wav'

Thanks for help!

[yinruiqing]

Hi,
From line 361--366 in pyannote-audio/pyannote/audio/applications/change_detection.py

    preprocessors = {'wav': FileFinder(db_yml)}

    if '<database.task.protocol>' in arguments:
        protocol_name = arguments['<database.task.protocol>']
        protocol = get_protocol(protocol_name, progress=True,
            preprocessors=preprocessors)

will add the wav file path to current_file['wav']. Could you please print the current_file to verify if the wav path has been passed successfully.

[nikopartanen]

I assume the error was connected to the changes in a recent commit and the different versions I had installed. I installed the newest development versions of both pyannote-audio and pyannote-core, and now it works, but I had to change the first line you refer to into 'wav' from current 'audio'. Before that it didn't work but gave the error I copied above, now it only gives a warning "wav" key is deprecated in favor of "audio" but seems to work fine. Thanks for help!