Why is my laptop audio crackly for low pitch audio?

[MrGubbo]

I've noticed that since I installed a recent optional windows update on my Windows 10 laptop about a month ago, my laptop's speaker become a little crackly when playing audio that is low pitched (or audio from a deep voice).I have no problem listening to higher pitched audios, but audios like those from a deep voice are quite difficult to hear due to the choppiness, which is troublesome as I find it difficult to listen to my professors' lectures.I've noticed this crackly audio comes primarily from the left side of the speaker on my laptop (I've noticed the left speaker plays low pitch sounds l

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