RE: DELL Inspiron 7559 Audio Problems -- Unclear Sound and Internal Sub Woofer Suddenly Off
VLC Player should not be used to increase the volume. This will result in crackling of the sound. VLC tweaks and amplifies the sound by increasing the +dB (decibel). VLC player in long run will affect the speakers. If VLC player is used, please refrain from increasing the volume beyond 90%.
How to Change Audio settings Type Dell Audio from the Start Screen, and select Dell Audio utility. The Dell Audio utility is launched. You may change the desired settings from the different tabs available on the utility