How to solve the problem of low voice of Xiaomi's mobile phone?

You can improve the sound of mobile phone calls by turning on the settings of single channel audio. Here, take Xiaomi 6 mobile phone as an example, and the specific methods are as follows:

First click the "Settings" icon on the mobile phone desktop, as shown in the figure.

2. After entering the phone settings interface, drop down the menu and select the "More Settings" option.

Third, then open "barrier-free" access in more settings interfaces.

4. After entering, just turn on the switch in the "mono audio" column, as shown in the figure.