Hi GiacomoMura. Music recorded from speakers in this way loses quality especially if the speakers aren't of good quality to start with (not saying you have bad speakers) What I would suggest is get what is called shotgun mic, this can be above your head and out of sight of the camera. Record your lesson the way you want to, music coming from speakers etc. then line up what you recorded with the music in your video editor after. This way you get the best recording your voice that you can and keep the music at it's original quality. Hope this makes sense Liam
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