Is there any way to merge audio and video within the app or using any api
Thanks
I cant find any topic related merging audio and video
I have a video (no sound ) and a audio of same length how can i merge it into a single video (with audio)
this is not directly possible in Kodular and currently there does not exist an extension to do that…
what you could do is to look for an API, which is able to do that…
alternatively you could write your own extension and create the functionality yourself…
more information about how to create an extension see the App Inventor Extensions document
however that will be more advanced and will require some Java skills…
Taifun
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MediaMuxer, to be more precise. 
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Or play / pause them togehther at the same time.