Before You Start: No sound may occur if the headphones are disconnected, the TV audio settings are incorrect, or the transmitter is not receiving audio. Turn on the Opera Aura transmitter and headphones, then play a TV program or video with sound.
Step 1 – Check the Headphone Connection
Keep the headphones turned on and near the transmitter. Check the headphone LED.
Step 2 – Check the Audio Signal & Settings
Play TV audio and check the transmitter's Audio Signal light.
Why PCM? Opera Aura needs a compatible stereo audio signal. If your TV sends Dolby or another surround-sound format, you may hear no sound. Set the TV audio format to PCM / Stereo.
Choose your TV connection type and follow the matching instructions.
Step 3 – Check Connections, Volume & Restart
- Make sure the audio cable is securely connected to the TV and transmitter.
- Set the transmitter's input selector to match your connection: HDMI ARC, OPT, or AUX.
- Increase the headphone volume and make sure the TV is not muted.
- Try another TV channel or video.
- Try a NEW audio cable of the same type.
- Still no sound? Restart the transmitter, headphones, and TV, then test again.
No Sound on Certain Apps or Cable Boxes? Play the affected program and set the TV or streaming device's digital audio format to PCM / Stereo.
Cable Box Audio Settings →Still No Sound?
Tell us your TV model, cable type, and transmitter/headphone LED status.
Contact Avantree Support →
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