My headset does not play low-volume sound. In other words it filters out sounds which are lower than a specific intensity.

For example if I want to listen to an audio track in low volume, half of it is filtered out. However increasing the volume will decrease the ratio of left-out parts.

It may seem that the headset has been damaged, but non-problematic test of the headset on a PC controverted this theory.

You might deduce that the phone hardware has been impaired, but using another headset on the phone showed that no such problem exists with other headsets.

Thanks in advance for helping me find out where the problem comes from and how to solve it