I wonder if there are good & bad copies of this game or some people are just oblivious to the problems. I picked up a 40gb PS3 & a new copy of the game this week and I've noticed all the problems that people have mentioned in this thread.
In the 3rd quarter of every game nearly every play ends with a bunch of scratching or popping sounds. For some reason I've only noticed this happening in the 3rd quarter. So far I've heard this in every Season game I've played as well as one exhibition game. The funny thing is that if I watch the replay I hear the same sound, but if I save the replay & watch it later the sound glitch doesn't happen then (I was hoping to post a replay file here as proof).
And I also notice the announcers & crowd noise skipping sometimes when the teams come to the LOS at the start of a play. Its not a huge deal but it does detract from the presentation & atmosphere a little bit.
Oh, and as for the static sounds -- I'm using component cable, so I don't think it matters whether you're using component or HDMI.