I had the same problem of not being able to hear the other person's voice when recording. I finally solved it by: 1) Downloading the latest ACR software by Nll or by Skavlex. 2) Making sure these apps are not being monitored by battery management system in Settings/System Maintenance/Battery. NLL software has the freeware option with advertising. Skavlex has only a trial version of 15 days, after which you need to pay $2, but has nice features.
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