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the resolution is the same as for input and output.

I would like to know what configuration and parameters for a background video, in this case I am using .avi output in 1280 x 720 resolution and no attempt is made to simply run the program. compression, bits, etc., what is the ideal setting? ...... use windows 10 karaoke video creator version 2.4.19 ...

I can't load .wav file
in the left panel it says "not loaded"
What can it be?
is there any indication of specific .wav format?
this happens on windows 10 and windows 07 I acquired 2 programs thinking the problem was an operating system
codec problem?
I have other audio editing programs that work ...