I would like to hire a Software Developer

I need a software that can allow me to watch a video on YouTube CD Dailymotion other websites or any other platform without music but keep sound effects voices etc. I want it to be a low cpu usage background application that doesn't slow the computer. The reason I want this program is because of religious obligations and it is critical that no music is heard. I would like it for windows and mac. I would also like to get ownership of the software for commercial and personal usage. Thank you.