Notebook Audio

A couple of weeks ago I noticed my HP Spectre x360 13-ae0xx making crackling sounds while listening to specific songs on Spotify. The crackling is only noticeable at high volumes or on peculiar sounds, one of which (i noticed) is the audio associated with the Windows 10 "Error". Beside this, I wanted to be sure so I tried emitting a full range of frequency form the speakers. The left speaker alone is completely fine, while the audio from the right one is very distorted, like the sound of paper when is ripped (this happened at any frequency). At low volume, the distortion from the right speaker is covered by the audio from left one, and it is barely noticeable. 

I tried reinstalling the Realtek Audio drivers, at first downloading them from the Hp Driver Support, and then from the link given form an expert on a solution (taken from this forum) to a similar problem (link to the discussion: https://h30434.www3.hp.com/t5/Notebook-Audio/Spectre-x360-distorted-sound-on-left-speaker/m-p/685973... ). None of these has either improve the sound nor removed the crackling. I'm pretty sure that the speaker hasn't got in touch with water or liquid in general, but I'm not prepared and not willing to unscrew the bottom of the case to check myself.

Thanks in advance!