You should ensure that all cables are securely plugged into the correct ports and that there is no visible damage to the wiring. Common Causes of Audio Failure The most frequent reason for youtube sound not working on tv involves the settings on the streaming device itself.
Fix YouTube Audio TV Connection Issue
HDMI cables can become loose, and the handshake between devices might fail to transmit audio signals. Sometimes, an update to the television's firmware or the streaming app can resolve unexpected glitches in the audio pipeline.
Roku and Fire TV devices have their own menu structures that manage audio. The audio settings on these consoles must be configured to pass through the sound correctly.
Fix YouTube Audio TV Connection Issue
Advanced Diagnostic Steps If the basics are intact, you need to examine the audio settings within youtube and the television menu. Power cycling these devices—turning them off and unplugging them for a minute—resets the audio handshake and resolves many transient issues.
More About Youtube sound not working on tv
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