1080 webcam audio exaggerates background noise

I just installed a new Aukey 1080 webcam. PC-LM1E. Camera is fine. But the microphone picks up a ton of background noise. To my ears, the room is almost silent. But doing a test recording and playback, it sounds like I’m in a noisy pub. Changing the settings for microphone volume, reduce background noise, etc. makes very little difference. Any suggestions?