XPS 13 7390 2-in-1, Speaker audio distortion

I have a Dell XPS 13 - 7390 2-IN-1 which I purchased couple of weeks back , I really like everything about the laptop except that I have been having an issue with its built in speakers, When I listen to podcasts or online tutorials when someone is speaking i hear distortion for 50% of the words they speak . This is not a driver or software issue as I am able to replicate it under both windows and ubuntu live boot . when i play the same audio on my 6 year old laptop or on my phone or on my pc I dont have that distortion . So there is nothing wrong with the audio . And it happens with almost all of audio especially when someone is speaking . Listen to the audio that I have attached so that you can hear for yourself . Is this a known issue or a QC issue ? . Will replacing my laptop fix the issue ? . 

I played the video on the microsoft page , set the volume to max (issue even occurs at 80% volume)and recorded it using my mobile phone , listen to it and you can hear the distortion

Original Audio:

https://docs.microsoft.com/en-us/learn/modules/principles-cloud-computing/4-cloud-deployment-models

Recorded audio using my Mobile phone(the screeching sound towards the end of almost 50% of the  words in the audio) :

https://soundcloud.com/user6840280/dell-xps13-audio-distortion