I took 2 vids, one from my 1987 Camry, and one from my 2001. The 2001 has some type of bearing noise and I'm not sure where it's coming from. I took both belts off, but the engine sounded exactly the same (belts are on in the video)
Sorry for the audio quality, all I have is a crappy still camera that happens to take (poor) videos. It's a bit hard to tell from the videos, but listen for a "whine" on the 2001. The '97 sounds louder but actually it isn't and the engine sounds quieter at idle than my 2001. The 2001 was a bit cooler at start so the engine runs faster, but it needed to be cold because the noise dies down somewhat when the engine heats ups. Have a listen: (files are in DivX format with mp3 audio)
2001 Camry video
1987 Camry video
Is that a normal engine sound for the 2001? It sounds loud to me and has that annoying whine. It can't be heard when driving the car though... (car has 81,000 kilometers)