2020-04-15T20:31:31.770068+00:00 app[web.1]: /app/.heroku/python/lib/python3.6/site-packages/pydub/utils.py:193: RuntimeWarning: Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work
2020-04-15T20:31:31.770070+00:00 app[web.1]: warn("Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work", RuntimeWarning)
2020-04-15T20:31:31.775489+00:00 app[web.1]: [2020-04-15 20:31:31,772] ERROR in app: Exception on /Audiotut [POST]
2020-04-15T20:31:31.775491+00:00 app[web.1]: Traceback (most recent call last):
2020-04-15T20:31:31.775492+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/app.py", line 2447, in wsgi_app
2020-04-15T20:31:31.775492+00:00 app[web.1]: response = self.full_dispatch_request()
2020-04-15T20:31:31.775492+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/app.py", line 1952, in full_dispatch_request
2020-04-15T20:31:31.775493+00:00 app[web.1]: rv = self.handle_user_exception(e)
2020-04-15T20:31:31.775493+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/app.py", line 1821, in handle_user_exception
2020-04-15T20:31:31.775493+00:00 app[web.1]: reraise(exc_type, exc_value, tb)
2020-04-15T20:31:31.775494+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
2020-04-15T20:31:31.775495+00:00 app[web.1]: raise value
2020-04-15T20:31:31.775495+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/app.py", line 1950, in full_dispatch_request
2020-04-15T20:31:31.775495+00:00 app[web.1]: rv = self.dispatch_request()
2020-04-15T20:31:31.775496+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/app.py", line 1936, in dispatch_request
2020-04-15T20:31:31.775499+00:00 app[web.1]: return self.view_functions[rule.endpoint](**req.view_args)
2020-04-15T20:31:31.775500+00:00 app[web.1]: File "/app/app.py", line 12, in AudioTut
2020-04-15T20:31:31.775500+00:00 app[web.1]: run(request.form['url'])
2020-04-15T20:31:31.775501+00:00 app[web.1]: File "/app/transcriptors/AudioTut.py", line 14, in run
2020-04-15T20:31:31.775501+00:00 app[web.1]: audio = AudioSegment.from_wav("./file.wav")
2020-04-15T20:31:31.775502+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/pydub/audio_segment.py", line 728, in from_wav
2020-04-15T20:31:31.775502+00:00 app[web.1]: return cls.from_file(file, 'wav', parameters=parameters)
2020-04-15T20:31:31.775502+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/pydub/audio_segment.py", line 665, in from_file
2020-04-15T20:31:31.775503+00:00 app[web.1]: info = mediainfo_json(orig_file)
2020-04-15T20:31:31.775503+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/pydub/utils.py", line 263, in mediainfo_json
2020-04-15T20:31:31.775503+00:00 app[web.1]: res = Popen(command, stdin=stdin_parameter, stdout=PIPE, stderr=PIPE)
2020-04-15T20:31:31.775504+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/subprocess.py", line 729, in __init__
2020-04-15T20:31:31.775504+00:00 app[web.1]: restore_signals, start_new_session)
2020-04-15T20:31:31.775505+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/subprocess.py", line 1364, in _execute_child
2020-04-15T20:31:31.775505+00:00 app[web.1]: raise child_exception_type(errno_num, err_msg, err_filename)
2020-04-15T20:31:31.775539+00:00 app[web.1]: FileNotFoundError: [Errno 2] No such file or directory: 'ffprobe': 'ffprobe'