Check out this
thread.https://www.googlenestcommunity.com/t5/Speakers-and-Displays/White-Noise-ambient-sound-has-changed-is-there-a-way-to-change/m-p/84883/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufEtZSERRMkxUQVJYQkVVfDg0ODgzfFNVQlNDUklQVElPTlN8aEs...
Talking about feeling crazy. I thought I had clogged ears or something.
I even tired a few different devices in my home before we found out it
was an upgrade from Google. My toddler has noticed the sound change and
now wakes during the night. Please ...