Hi @noahs,
Thanks for reaching out to the Roku Community.
We're sorry to hear about the crackling sound you are seeing with your Roku Streambar. Let us help you further. Can you please provide the serial number of your Roku device from Settings>System>About? I'll be able to pass it along to our Support team who can assist you further.
We look forward to hearing back from you soon.
Regards,
Nimfa