https://nvidia.github.io/OpenSeq2Seq/html/installation.html
git clone https://github.com/NVIDIA/OpenSeq2Seq
cd OpenSeq2Seq
pip install -r requirements.txt
Was getting Error Failed building wheel for mpi4py
fixed with sudo apt install libopenmpi-dev from https://stackoverflow.com/questions/28440834/error-when-installing-mpi4py
mkdir /data/speech/MAILABS/....
Best download i found was M-AILABS - http://www.caito.de/2019/01/the-m-ailabs-speech-dataset/