MIC Test is a free multimedia application developed by GamesGreh for Android devices. This app is designed to help users check what audio sources and channels are supported by their devices. It is especially useful for those who have experienced poor phone call audio quality on their One Plus 3T devices.

MIC Test offers various tests to identify the main corrupted MIC used as right and left channels on the CAMCORDER and MIC source modes. Users can select the source and channels to start the mic and blow air at the bottom of the phone to check the sensitivity of the MICs.

One of the unique features of MIC Test is that it helps users identify which mic is being used as LEFT RIGHT by checking which channel has a longer bar. It also alerts users of signs of a bad mic, such as loud sound with no increase in MIC meter bars.

It is important to note that some devices record MONO from their audio recorder but STEREO from camera app, and some devices force MONO to all 3rd party apps but record STEREO, 3D, etc. from their own camera app. MIC Test uses standard Android features and users are advised to test actual audio by recording a video from the OEM camera app before making conclusions.