For audio regions to work when you have remote URLs, you need to configure CORS to be wide-open
Install python and virtualenv
# install python and virtualenv
apt install python3.6
pip3 install virtualenv
# setup python virtual environment
virtualenv -p python3 env3
source env3/bin/activate
# install requirements
cd backend
pip install -r requirements.txt
Listen to the audio file and classify
python server.py -c config.json -l ../examples/audio_regions/config.xml -i ../examples/audio_regions/tasks.json -o output