Here're my "very quick answers: 1- yes it's very normal ... don't worry about it 2- text-to-speech tools are not allowed in udemy 3- yes can use any kind of video... you better create a video and send it to udemy for validation ... click on the tools icon from your instructor board to get to the "test video" area 4- yes you can ... but why wait till you're successful on udemy ... market your courses now to the people you know will be interested in your courses
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