This can be caused by a number of reasons and I can help you fix them!
1.) Restart your tablet completely
2.) Have you tried updating your tablet or the zoom app?
3.) Restart your Wi-Fi modem/router
AFTER TRYING STEPS ABOVE, try to test your microphone. Take a video and and say a sentence. Replay the video and see if the microphone sounds buggy. If it sounds buggy, its most likely a microphone issue on your tablet. If it sounds clear, read the next step below.
If none of these work, check into a new device. An outdated device can have performance issues. This drop of performance could be making your microphone not work correctly.
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