@Katz2244
Depending on your Roku device/Roku TV model, while the content in playing, press the asterick (*) button on your Roku remote and look under Volume Mode or Sound Mode for a Leveling or Night Mode that should normalize the volume changes.
https://support.roku.com/article/226802507
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
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