I have 2 issues:
1. Suboptimal reduction of nearby voices. With "Noise Canceling" activated, I can still clearly hear my wife talking to me from a few feet away. And that really defeats the purpose... Seriously, aren't they supposed to cancel voices, and not only low frequency traffic noice (which they do)? "I hear babies crying" - and not in a good sense...
2. As others have noted: They hiss, like the sound of a distant waterfall or rain, on "Noise Canceling" and "Wind Noise Reduction". But not on "Ambient Sound", unless "Focus on Voice" is activated. (There's also an additional hiss of a slightly different kind from "Ambient Sound" 10 to 20.) This is really annoying when listening to podcasts or when I for some reason want to turn the volume low.
Is this a feature of the ANC technology in general, or a flaw in WH-1000XM2 in particular? A review I've read leads me to suspect the former, but the extremely positive customer experiences around point to the former, ie. my headphones are defective.
