This seems to be a hardware related problem occurring on Android phones from Oppo, OnePlus and Nokia only. And not limited to Braintoss (see link below for an example). Please contact the manufacturer of your device to see if there's a solution.
https://forums.oneplus.com/threads/call-record-problem.1239770/
Slow voice recording on Android Print
Modified on: Mon, 28 Jun, 2021 at 4:48 PM
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