LikeWyze, I don’t know how you did it, but the helicopter noise is almost eliminated. Great job!
I didn’t have high hopes for you being able to do what you did with a firmware update. At first, I thought you may have just implemented a digital squelch to cut audio when average sound level was below a threshold, but that doesn’t seem to be the case. https://en.wikipedia.org/wiki/Squelch
There is still a large delay in the audio stream compared to the video stream, so something that makes noise (like the sound of the IR-Cut filter changing positions) follow the time they happened in the video by 5 or 6 seconds.
Before ungrading from 22.214.171.124 to 126.96.36.199 I did the following procedure, and did it again after the upgrade:
The v2 camera in the garage was on Auto (and in night mode).
I used the “record” feature on my Android Wyze app and waited a bit, then pressed “mode” button so it switched from auto in night mode to night mode. You can hear a small sound (the filter didn’t have to move), then waited about 10 seconds, and pressed the mode button again, this time forcing it into daylight mode. You will see the video change but you won’t hear the click until much later. Then I press the mode button again back to auto mode, and it switched back to night mode. Again you will notice the audio delay.
In the Wyze_v2_188.8.131.52.mp4 file you will hear the helicopter noise (turn up volume, but leave it same on both videos). What is interesting that I hadn’t noticed before is that immediately after the camera moves the IR-cut filter, the frequency of the sound slows down, it reminds me of an old one-cylinder engine that was running, then a load was put on it and it slowly recovers.
The Wyze_v2_184.108.40.206.mp4 file has the same test steps, but the noise is almost non-existent. You will hear the soft click when it tries to move the filter to the night mode but it is already in night mode, then the loud click when it switches from night mode to day mode, and then another loud click when it moves back to auto (but switches to night mode).
Great Job! Thank you.