The symptom
Troubleshooting
Smart TVs
Video plays normally but there's no audio — through TV speakers, a soundbar, or both.
The likely causes
Work from the top — the list runs from most common to least common.
- Muted TV or a volume level at zero on a second device in the chain
- Wrong audio output selected on the TV
- An audio format (like Dolby Digital Plus) the TV or soundbar can't decode
- A loose or failing HDMI cable
- A stuck HDMI-CEC volume state
The fixes, in order
-
Rule out the obvious volume chain
Unmute the TV and raise volume with the TV's own remote. If a soundbar is connected, raise its volume too — two separate volume controls often sit in the path. Bluetooth headphones connected to the device will also steal the audio.
-
Check the TV's audio output setting
In the TV's sound settings, confirm the output matches your setup: 'TV speakers' if you use the TV's speakers, or 'HDMI ARC/Receiver' if a soundbar is connected. Also turn off any 'Bluetooth audio' that was left on.
-
Switch the device to stereo temporarily
Set the streaming device's audio to plain stereo: Roku: Settings > Audio > Digital output format > Stereo. Fire TV: Settings > Display & Sounds > Audio > Surround Sound > Stereo. Apple TV: Settings > Video and Audio > Audio Format > Stereo. If sound returns, your TV or soundbar can't decode the surround format you had selected — leave it on Auto or Stereo.
-
Restart the chain
Power off the TV and soundbar, restart the streaming device, then power everything back on. Audio handshakes renegotiate on startup.
-
Swap the HDMI cable
A marginal cable can pass video while corrupting audio. Try a different cable, and reseat the soundbar's ARC connection if you use one.
When to contact the manufacturer
If the TV produces no sound from any source — antenna, apps, HDMI — its speakers or main board may have failed; contact the TV manufacturer. If only one streaming device stays silent on every TV, contact the device maker.
FoxStream publishes guides and is not an official support channel for any brand — always use the manufacturer's official support site or the number printed in your device's documentation.
Worth knowing
- 'Auto' audio format is the right long-term setting once things work; Stereo is the diagnostic.
- Volume leveling modes on Roku and Fire TV can quiet loud ads at night.
Common mistakes
- Testing volume with the streaming remote when it's programmed to a different device.
- Leaving the TV output on 'Receiver' with no receiver connected.
Research basis: Roku, Fire TV, Apple TV and Google TV devices with TVs and soundbars. Fixes checked against current manufacturer documentation as of the last-updated date above.