Audio has been working fine until now, but now it's not. There is no audio from the Tapo camera to my phone. There are some static noises, though, and when I knock on the camera, it makes knocking sounds which I can hear on my phone, but it's a weird sound. I can't hear the camera sound when it is panning either, which I used to. Standing next to the camera and screaming has no effect; it only makes vague, uneven static noises. Trying to adjust the audio doesn't help. Unplugging the camera doesn't help. Resetting the camera doesn't help. I've made sure I have not muted my microphone sound. I have also made sure my other settings are as they used to be. I've also tried other suggestions on this forum from people who has similar issues, but with no success.
 

Voice call (from phone to the camera) works, but there is no sound back when replying. This issue is present in live view and recordings.
 

My camera isn't that old; is it already getting worn and defective?