IPTV No Sound or Audio Out of Sync? How to Fix It

No sound on some or all channels

Check the app’s audio track option: some channels carry more than one track.
Set the device’s audio output to PCM or Stereo instead of Dolby Digital or "passthrough", then test again. If sound returns, your soundbar or TV is not decoding the surround format it is being sent.
If you use a soundbar or AV receiver over HDMI ARC or eARC, turn the TV’s ARC/eARC setting off and on again, and check the soundbar is set to the right input.
Switch the player’s decoder between hardware and software.
Restart the TV, the soundbar and the streaming device, in that order.

Try another channel: if only one is out, the delay is in that stream.
Use the audio delay or lip-sync setting in the player, the TV or the soundbar to shift sound by a few milliseconds.
Turn on frame-rate matching on your streaming device, and turn off heavy picture processing on the TV (or use Game or Filmmaker mode).
Bluetooth headphones add a noticeable delay; wired headphones or the TV’s own headphone output are better for live TV.

A codec or HDCP problem. Try an HD channel, another HDMI cable or port, and the device’s automatic HDMI settings.

An HDR mismatch. Set dynamic range to Adaptive or Match Content so HD channels are not forced into HDR.

Enable frame-rate matching so 50 fps broadcasts are not converted to 60 Hz.

Usually a decoding glitch: switch the player’s decoder or restart the device.

Frequently asked questions

Why is there no sound on my IPTV?

Often the device sends a surround format your TV or soundbar cannot decode. Set audio output to PCM or Stereo and check the app’s audio track.

How do I fix IPTV audio out of sync?

Use the lip-sync or audio delay setting in your app, TV or soundbar, enable frame-rate matching and avoid Bluetooth headphones for live TV.

Why is my picture black when I can hear sound?

Usually HDCP or a codec your device cannot decode. Try another HDMI cable or port, and an HD channel to compare.