Lg V30 crackly/blown speaker issue?

Ive recently noticed that when i play audio through instagram and youtube on my V30 it sounds very crackly/fuzzy almost when below 50% volume, however, when i play audio through soundcloud it sounds perfectly fine. This has only started to happen recently and was working about a week ago. I seem to think its something to do with the HiFi quad dac but im not sure. Please help!!

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