apt-requirements.txt
sudo apt-get install espeak python-espeak
# Pillow requirements:
sudo apt-get install libtiff5-dev libjpeg8-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python-tk
# Speech recognition requirements
sudo apt-get install libjack-jackd2-dev
sudo apt-get install portaudio19-dev
sudo apt-get install jackd2
sudo apt-get install python-pip pyaudio
sudo apt-get install bison libasound2-dev swig python-dev mplayer
# required only if the system is not x86-based Windows/Linux/OS X
sudo apt-get install flac