fect only by changing the hardware.
4. Sound distortion might caused because the balance settings of the reproducer is not adjusted well, for instance, the audio frequency sent to the right track is too high, exceeding the disposal range of the reproducer, and the audio frequency sent to the left track is too low, the reproducer could hardly make any sound. At this moment, you should try your best to adjust the sound balance settings.
5. Sound distortion might be caused because the audio control circuit on motherboard or the sound card integrated on motherboard has something wrong, the signal loaded could not be magnified or transported to reproducer, for instance, the amplifier circuit is broken, audio frequency is too low that reproducer could hardly make sound, at this moment, the best solution is to change an USB sound card or just change a new motherboard.