From an architect:
I don’t know about physically/mechanically buzzing, but if you have not already done so, wire the cans on their own circuit. Especially important not to mix LED and incandescent on the same circuit. Separating the can circuit will allow you to change dimmers, and troubleshoot if you have problems. Matching the dimmer model to the cans is important to keep them from buzzing or flickering.
I don’t know about physically/mechanically buzzing, but if you have not already done so, wire the cans on their own circuit. Especially important not to mix LED and incandescent on the same circuit. Separating the can circuit will allow you to change dimmers, and troubleshoot if you have problems. Matching the dimmer model to the cans is important to keep them from buzzing or flickering.