I TRIED SO HARD TO MAKE THIS ASSISTANT (I AM A STUDENT IN GRADE 10) I am learning in HIGH SCHOOL FOR THE GIFTED - VNU HCM (Vietnamese name of the school: PTNK)
I MYSELF MADE this assistant.
It can work totally offline and recognize sound really well It can work online too
youtube link: https://www.youtube.com/watch?v=ZA6_SNhI7AA facebook: https://www.facebook.com/bach.quang.PTNK
THE "BALL" GAME IN THE ASSISTANT IS FROM THIS LINK: https://dafluffypotato.itch.io/lynez?download