Ensemble - Fix No Sound – Avantree Support

Before You Start: No sound may be caused by disconnected headphones, incorrect TV audio settings, or a loose audio cable. Turn on the Ensemble transmitter (base) and headphones, then play a TV channel or video with sound.

Step 1 – Check the Headphone Connection

Check the indicator light on the transmitter and headphones:

Solid Blue – Headphones connected. Continue to Step 2.

No Light on Base – Check the power connection and turn the transmitter ON.

Flashing Blue? Follow the pairing guide below:

Ensemble – Pair and Lock Guide →

Step 2 – Check the TV Audio Connection

Make sure the audio cable is firmly connected at both ends.
Connect the TV's audio OUT port to the transmitter's matching audio INPUT.
Play a TV program with sound.

Step 3 – Check TV Audio Settings

Open the connection you are using:

Optical Cable (Recommended)

Connect TV Optical OUT to transmitter OPTICAL IN.
Set TV Sound Output to Optical / External Speaker.
Set Digital Audio Format to PCM / Stereo, not Dolby, DTS, Auto, or Bitstream.

Find PCM Settings for Your TV →

AUX / 3.5 mm

Connect TV Headphone / Audio OUT to transmitter AUX IN.
Select Headphones / Audio Out in TV settings, if needed.
Increase the TV volume and make sure it is not muted.

Step 4 – Check the Volume

Press Volume + on the headphones.
Make sure the TV program is not muted.
If using AUX, increase the TV volume as well.

Step 5 – Try a Different Audio Cable

Try a new audio cable of the same type (Optical or AUX).
Reconnect both ends firmly, then play TV audio and test again.

Still No Sound? If you're using Optical, make sure the TV's digital audio format is set to PCM / Stereo.

Find PCM Settings for Your TV →

Note: The original cable may be faulty. If the new cable works, stop using the original cable.

No Sound on Certain Apps or Cable Box?

If regular TV audio works but a streaming app or cable box has no sound, play the affected program and set the TV or streaming device's audio format to PCM / Stereo.

Cable Box Audio Settings →

Still No Sound? Restart

Turn off the TV, transmitter, and headphones.
Reconnect the audio cable firmly at both ends.
Restart the TV and transmitter, then turn on the headphones.
Wait for the solid blue connection light and test another TV channel or app.

Still No Sound?

Tell us your TV model, cable type, and transmitter/headphone LED status.

Contact Avantree Support →