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5·
1 year agoHow were you playing the sound? (What software)
Was the phone plugged in @ the same time?
If you repeat the setup/performance, does it stop again? If it was plugged into the mains like your keyboard, A transient voltage anomaly might be to blame?
“Automatic content recognition” https://advertising.roku.com/resources/blog/insights-analysis/acr-the-future-of-tv-and-audience-data#! Roku is not the only ones doing it :(