Android How to Turn On/Off Mono audio

On the Android smartphone, the audio is played back over two separate channels (stereo), which gives us a better listening experience.

If, for example, only one headset is used, stereo playback can be a disadvantage, since the same playback does not necessarily occur between the two channels.

The Android system offers the possibility to change the playback from stereo to mono audio. Both channels are combined into one. The same audio content is played back on both listeners.