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10 Tech How-To

Roku No Sound? Fix It in 10 Minutes

Guide 10-14691 · Updated · Step by step

If your Roku is playing video but there’s no audio, the problem is usually a simple setting, a loose cable, or a temporary glitch. This guide walks you through the most common fixes, from quick remote tricks to checking your TV and audio system connections, so you can get sound back fast.

What You’ll Need

  • Your Roku remote (or the Roku mobile app)
  • Access to your TV’s remote and settings menu
  • The cables connected to your Roku (HDMI, optical, or RCA)
  • If using a soundbar or receiver, its remote and manual

Step-by-Step

  1. Check if the Roku is muted. Press the Mute button on your Roku remote. A mute icon appears on the screen when active. Press it again to unmute. Also check your TV’s mute and volume buttons.
  2. Restart your Roku. Unplug the power cable from your Roku, wait 10 seconds, and plug it back in. Or go to Settings > System > Power > System restart (if available). This clears many temporary glitches.
  3. Check the volume level on the Roku. Press the Volume Up button on your Roku remote. If you see a volume slider on the screen, ensure it’s not at zero. If you don’t see a slider, your Roku is likely set to control the TV’s volume via HDMI-CEC, so the TV volume indicator should appear.
  4. Inspect all cable connections. Unplug and firmly reconnect the HDMI cable from your Roku to your TV or receiver. If using an optical or RCA cable, ensure they’re fully inserted and in the correct ports. Try a different HDMI port on your TV if possible.
  5. Restart your TV. Turn off your TV and unplug it from power for 30 seconds, then plug it back in and turn it on. This resets the TV’s audio system and can resolve handshake issues.
  6. Check the audio output settings on your Roku. Go to Settings > Audio > Audio mode and try Auto or Stereo instead of Dolby or Passthrough. Also check Audio output – if you’re using TV speakers, select TV speakers; if using a soundbar, select the appropriate option.
  7. Test another app or channel. Play a different streaming channel (like Netflix or YouTube). If sound works there, the issue is with the specific app – try updating it or restarting the app.
  8. Check your TV’s audio settings. On your TV, go to its sound settings and ensure the output is set to TV speakers (or your connected audio device). Disable any Mute or Audio off features. Also try changing the TV’s audio format to PCM if available.
  9. If using a soundbar or receiver: Check its input source, volume, mute, and cable connections. Try playing audio from another device to confirm the soundbar works. Power cycle the soundbar by unplugging it for 30 seconds.
  10. Update your Roku. Go to Settings > System > System update and check for updates. Install any available updates and restart.

Common Mistakes

  • Forgetting to check the TV’s mute button. Many TVs have a mute button on the remote or side panel that’s easy to press accidentally.
  • Using the wrong HDMI port. Some HDMI ports on TVs are for specific devices (like ARC) – if your soundbar is connected to a non-ARC port, it may not work properly.
  • Assuming the Roku remote controls the TV volume. If your Roku remote doesn’t have volume buttons, it may not be paired to control the TV. Use the TV remote instead.
  • Not restarting the TV. A simple TV restart often fixes audio handshake issues but is frequently skipped.
  • Changing audio settings randomly. Changing multiple settings at once can make it hard to know which fix worked. Change one thing at a time.

Tips

  • Use the Roku mobile app. The free Roku app has a Remote feature with a mute button and volume controls. It can also help if your physical remote is lost or broken.
  • Check the HDMI-CEC settings. On your TV, look for CEC, Anynet+, Bravia Sync, or Simplink and ensure it’s enabled. This allows your Roku remote to control TV volume and can improve audio handshake.
  • Try a different HDMI cable. A faulty or low-quality HDMI cable can cause audio dropouts. Use a high-speed cable, especially for 4K content.
  • Set audio to Stereo. If you’re using TV speakers, setting the Roku’s audio mode to Stereo often resolves compatibility issues.
  • Power cycle all devices. Unplug your Roku, TV, and soundbar for 30 seconds, then plug them back in. This resets the entire audio chain.

Troubleshooting

If you’ve tried all the steps and still have no sound, try these additional checks:

  • Test the Roku on another TV. If sound works on a different TV, the issue is with your original TV’s settings or hardware.
  • Try a different app. If only one app has no sound, uninstall and reinstall that app from the Roku channel store.
  • Factory reset (last resort). Go to Settings > System > Advanced system settings > Factory reset. This will erase all settings and require you to re-link your Roku. Try this only after all other steps fail.
  • Check for known outages. If the issue started suddenly, check if Roku or the streaming service has a known outage.
  • Contact Roku support. If the problem persists, visit Roku’s official support site for further help.

Frequently Asked Questions

Why does my Roku have no sound but the video works?

This is usually due to a muted setting, a loose HDMI connection, or an audio format mismatch between the Roku and your TV or soundbar.

How do I unmute my Roku?

Press the mute button on your Roku remote. If you don’t have a mute button, use the Roku mobile app’s remote. Also check your TV’s mute.

My Roku remote has no volume buttons – how do I control volume?

You can use your TV’s remote, or pair your Roku remote to control the TV volume via HDMI-CEC (enable CEC on your TV). The Roku mobile app also has volume controls.

Why does sound work on some apps but not others?

This indicates a problem with the specific app. Try updating the app, restarting it, or uninstalling and reinstalling it.

Can a bad HDMI cable cause no sound?

Yes, a damaged or low-quality HDMI cable can cause audio issues. Try a different high-speed HDMI cable.

How do I reset the audio settings on my Roku?

Go to Settings > Audio and change the audio mode to Auto or Stereo. You can also do a factory reset from Settings > System > Advanced system settings.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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