Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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ovzero
Level 7

Roku Ultra - Loud Beep When Playing Dolby Digital/DTS

Hello Roku community. I recently purchased a certified refurbished Roku Ultra from Amazon as I needed the model with an optical out port to connect to a Logitech Z906 5.1 Dolby / DTS speaker system. I have noticed that when I switch apps or within apps that change movies, a very loud beep plays for like a second before the audio starts. The audio is in surround sound but the beep is unbearable. I looked into the secret menu, but downgrading the firmware is not possible it seems. 

Am I out of options?

Specs:

Model: 4640X
Software Version: 8.0.1 - Build 4090-29

Thank you,

ovzero
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