Syncing Seperate funscript made Audio file and Video together on android? maybe an app?

I like to use Estim and typically on my pc i will use script player to play a video with its script and accosiated estim audio file played out of two seperate devices one is my headset the other going from headphone jack to my estim device. and i do something similar on my android phone where i use split audio from two apps to do the same thing but i need to sync the audio and video manually. is there such an app that could sync two different apps playback together in such a way?
maybe something like script player but for android. i’ve tried to find the android version of it that supposedly exists but i was never able to find it.

anyone have any ideas?