I had this problem since I bought my Huawei Mate20 pro. When i record my voice either by using the Voice Recorder app or by making voice messages in Whatsapp, I almost have no sound. You can hear the first milliseconds of my voice and the rest is silent. I can record very low sounds without any problem but the minute I increase my voice to normal, the recording goes silent.
I went to Phone Manager app and changed the battery App launch from Auto to Manual and disabled all, but no change for my issue. I also went to App permission/ Microphone and kept only the phone main apps to use the microphone such as Phone and Voice Recorder, but still the same problem.
The voice recording problem disappeared only when I restart my phone and only for a while before it comes back.
I'm frustrated and really need help please