listen.py dies ValueError: zero-size array to reduction operation minimum which has no identity

[ericpardee]

Expected Behavior

Expect song artist title, song should be displayed like shazam app

Current Behavior

it crashes in listen.py step:

epardee@nhan7: /tmp/shazam-demo$ python listen.py -s 5
Listening....
Okey, enough
Took 204800 samples
Traceback (most recent call last):
  File "listen.py", line 98, in <module>
    matches.extend(find_matches(channel))
  File "listen.py", line 68, in find_matches
    hashes = analyzer.fingerprint(samples, Fs=Fs)
  File "/private/tmp/shazam-demo/src/analyzer.py", line 36, in fingerprint
    arr2D = 10 * np.log10(replaceZeroes(arr2D))
  File "/private/tmp/shazam-demo/src/analyzer.py", line 84, in replaceZeroes
    min_nonzero = np.min(data[np.nonzero(data)])
  File "/usr/local/lib/python2.7/site-packages/numpy/core/fromnumeric.py", line 2618, in amin
    initial=initial)
  File "/usr/local/lib/python2.7/site-packages/numpy/core/fromnumeric.py", line 86, in _wrapreduction
    return ufunc.reduce(obj, axis, dtype, out, **passkwargs)
ValueError: zero-size array to reduction operation minimum which has no identity

Steps to Reproduce

1. download sample to mp3 folder: https://www.dropbox.com/s/62v1k5xo1jqa6k8/song2.mp3?dl=0
2. python reset.py
3. python analyze.py
4. python listen.py -s 5

Context (Environment)

macOS 10.14
Python 2.7.15
node v11.6.0