Tires: rotational tire noise, yokohama avid tires, cv joints

Question
The original summer tires on my 03 Maxima began making a rotational noise at certain speeds a few months ago.  Dealer said it was uneven tire wear. Put the snow tires on and the noise was still there.  Dealer claimed it was also caused by uneven tire wear.  i broke down and replaced all of the summer tires with yokohama avid tires, had the dealer do an alignment and...the noise is still there!  The service mgr road tested it and can't hear the noise, but it's driving me crazy.  Any suggestions?  A wheel bearing problem perhaps?

thanks

Answer
Ginny,  

Trying to diagnose a noise over the internet is difficult.  But there are some obvious things that would cause a noise that might be confused with tire noise - bearings and CV joints being the most likely.

But I would suggest you find a different mechanic,  one that can hear the noise.

Hope this helps.