All I see is a picture,no video. I also hate TV shows where the music is so loud it overpowers the actors voices.In real life there's not music playing when people are talking or doing things.Being your boat is quiet,maybe a sound module to make it sound like a real tug would work. I saw a video of a tug with a sound module of the engine sounds ,but the noise of the geared motors could still be heard.I put in the comments that maybe he should use a belt reduction instead of geared or use lower rpm direct drive motors.