Wow, that was really something. At first I'd die again and again and again on the first level. I knew precisely that I had to keep track of his location where both speakers played at the same loudness but I could always block the first attack and he'd get me every fricken time on the second. Then I turned up the volume to "8" (which is fairly loud) and I paid more focus to the game. I found that I was best locking on to his sound when he was running to attack. Doing so, I managed to block once, twice, blocked again, and again, and again. I ended up blocking at least eight times consecutively! The next time he ran up to me, I swung my sword instead and ended the fight.
This is something truly unique for sure. Bravo, dude.
I haven't completed the game yet or even attempted the second fight but I'm just so amazed that I managed to beat the first guy after so much failure.
But I have to take off half a point because of what other people are saying.