2000 civic noises

[phewey]

I own a 2000 Honda civic and recently I started hearing a humming or whirring noise from under the hood area whenever im driving. I usually hear it when i hit around 35 mph and it gets louder the faster I go. I dont have to hit the acceleration to hear this noise either. I can also now hear a pinging sound when I hit the acceleration which I never heard before. This vehicle is an automatic. Any suggestions would be appreciated.

[GScivic7]

You sure that pinging isn't engine knock? Don't know what that humming would be though.

[mycivic]

How would you explain the noise? Could you post a sound clip? Could it be one of the belts?