I tried to record myself using my samsung s9 today and you could not hear the bass at all. hears what i did. I connected a cord from my computer to the Aux on the back of my amp. then I plugged in my bass to the same amp and ran a youtube video and taped it using my phone. when I played it back not only did I barley hear the bass it also sounded like crap. whats the best way to record yourself playing along with a youtube video so it sounds good?