How to run Gradio under WSL on windows 10 with pulseaudio for windows and MobaXterm

gradio-on-wsl

requirements:

mobaxterm
WSL
pulseaudio for windows 
gradio fc29 rpm build 

Setup and run pulseaudio https://token2shell.com/howto/x410/enabling-sound-in-wsl-ubuntu-let-it-sing/
quote:
download the linked zipfile containing preview binaries from https://www.freedesktop.org/wiki/Software/PulseAudio/Ports/Windows/Support/
Edit 'etc\pulse\default.pa'
Line 42
FROM 	load-module module-waveout sink_name=output source_name=input
TO 	load-module module-waveout sink_name=output source_name=input record=0
Line 61
FROM 	#load-module module-native-protocol-tcp
TO 	load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1
Edit 'etc\pulse\daemon.conf'
Line 39
FROM 	; exit-idle-time = 20
TO 	exit-idle-time = -1
open cmd.exe and navigate where pulseaudio.exe is, start pulseaudio


Open an ubuntu bash session in MobaXterm (or an ubuntu bash windows plus vcXsrv if you prefer to separate the Xorg server); add this to /etc/environment
PULSE_SERVER=tcp:127.0.0.1
close and restart ubuntu bash session or run "export PULSE_SERVER=tcp:127.0.0.1"

download fedora core 29 rpm from https://copr-be.cloud.fedoraproject.org/results/heikoada/gradio
update: v7.2 here https://copr-be.cloud.fedoraproject.org/results/atim/gradio/fedora-29-x86_64/

convert rpm to deb with alien
sudo alien --to-deb gradio-7.1-1.201805202103git402c85d.fc29.x86_64.rpm

install with dpkg
sudo eatmydata dpkg -i gradio_7.1-2.201805202103_amd64.deb
(eatmydata if you are on hdd, speeds up installation by faking sync calls during dpkg)

install media codecs 
sudo apt-get install ubuntu-restricted-extras
sudo eatmydata apt install gstreamer1.0-plugins-bad gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-ugly

launch gradio

enjoy!

make sure  << ldd `which gradio` | grep found >> outputs nothing, or else you need some extra apt-get install
if it works you don't need to keep ubuntu bash open
just run "PULSE_SERVER=tcp:127.0.0.1 gradio & disown" and logout