Solution Google Pixel 6 - Microphone not working in latest Kasa app version
My Google Pixel 6 microphone was not working correctly with the Kasa Doorbell (KD110) and Tilt Camera (EC70). The sound coming out of the Kasa devices was muffled/incoherent.
After much troubleshooting, I figured out that I needed to download an earlier version of the Kasa App, as discussed here: https://community.tp-link.com/us/smart-home/forum/topic/508858.
I downgraded to version 2.34.0.1007 (2021-08-27) from an apk and got all the functionality back. The sound is crystal clear again.
Hope this helps others in a similar situation, and hope that the developers address this shortfall in future updates.