https://www.activistpost.com/flock-safety-expands-audio-surveillance-deepening-its-network-of-unlawful-data-collection/
Flock Safety integrates audio monitoring with its camera systems to provide comprehensive surveillance for public safety initiatives.
flock safetyaudio surveillanceexpandsdeepeningnetwork
https://www.nar.realtor/legal/video-and-audio-surveillance-state-law-survey
This chart describes the various state laws for both video and audio recording.
audio surveillancestate lawvideosurvey