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Top Questions

• Avantree TV Headphones Troubleshooting for no sound / not working.

  Avantree Wireless Transmitter / TV Headphone Set is not working for you, no sound? Troubleshooting Tips:

  ·       Headphone and Transmitter Base should be well Connected

  1.     Avantree headphone should say "Welcome to Avantree. Connected." and shows Solid Blue light.

  2.     Transmitter should show Solid Light indicating ‘Connected’?

  3.   How to connect to Apple Airpods Max, Pro, Bose, Beats, Jabra, Plantronics, Sennheiser, Sony...

  ·       Proper Audio Signal should be sent to the Transmitter (95% issues are here)

  o   Is your transmitter signal detecting LED SOLID (Signal coming through OK) or Flashing (No Valid Signal)?      

  o   Check Your TV setting again (Samsung TV, LG TV, Sony TV, Vizio TV…)

  o   For AUX / RCA connections

  •  Use your headphone with a wire to listen. If no sound, then no signal coming from that port

  •  Transmitter base is set to AUX

  o   For Optical connection,

  •  Transmitter base is set to OPT

  •  Make sure your TV HDMI ARC port is not connected

  •  Unplug and Plug the optical cable from transmitter

  •  Start your Netflix / Amazon Prime Program first before change to PCM

  •  Contact your TV manufactory and ask “How to change the TV setting so i can get audio signal out of my port?”

  ·       More complicated set up? Check How to use with Sound Bar & AV Receiver Set up Guide here

   

  For further assistance, please contact us via support@avantree.com  

   

  If you contact us via email, please try to provide the following images for quick diagnosis:

  1. Photo of the transmitter box and headphone, both turned on with their LED lights (Solid Blue?)

  2. Photo of TV Audio output ports & TV HDMI ports 

  3. Photo of TV Screen with Sound Settings page - with Digital Optical Out selected (if you use optical cable)

  4. Photo of TV Screen with HDMI in & Out Audio Format both set to PCM 

  5. If you also have AV Receiver and Soundbar connected, please draw a simple diagram how you connect them and the audio signal flow. (Note: The following diagram is just for your reference, you can draw it by hand.)

   

  We will get back to you within 1 working day.

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• Can't Pair with my Bluetooth Headphones, Speaker

  If you are unable to connect a Bluetooth headphone / speaker to your Avantree transmitters, try the following:

  1.     Turn your smart TV, as well as other close by wi-fi device off to avoid interference. 

  2.     Make sure the previous paired devices, e.g. Mobile Phone, PC, are Bluetooth-off.

  3.     Make sure you put the Bluetooth headphones / speakers into PAIRING MODE (most people failed here!)

  4.     Factory Reset (Clear pairing history!! Not only turn on / off) BOTH devices and try again. 

  5.     If you tried all above but still cannot pair, there might be an unknown aggressive Bluetooth device in your environment. You may try the pairing process in a different location. If both devices are portable, take them into your car, drive a bit away from home, and use car cigarette lighter as the power source and pair them up.

  Normally, if the transmitter / adapter leaves the pairing mode first, it indicates you have something else in the environment disturbing the pairing. Please clear pairing history of the transmitter or try from a different location)

  If the Bluetooth headphone / speaker leaves the pairing mode first, it indicates previous paired device is not turned off. Please check the manual and clear the pairing history of the device. 

  If both devices stay in pairing mode for a long time but not connected, it is most likely caused by wi-fi interference.

   

  If it is still not working, please submit the Cannot Pair Verification Form, and we will get back to you within 1 working day. 

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• Audio Delay / Lag - Visual Not Synced with Audio, Echo with TV Speaker

  Audio latency is, essentially, the time it takes for audio data to move from your audio source to your headphones. Wired headphones produce an imperceptible amount of lag—about 5-10ms worth. Within this 5-10ms window, your phone or computer processes digital audio data, converts said data to an analog audio signal, and streams the signal through your headphones or speakers.

  Bluetooth devices spend a lot more time in this “processing”. Source device compresses data and wirelessly transmit it. Then headphones or speakers receive the data and decompressed it.

  The wireless communication program is called “Codec”. It acts like a specific language that the sender and the receiver agree to communicate with. Different codec leads to different audio delay nature.

  Bluetooth Audio Codec	Audio delay
  aptX™ HD	≥ 250ms
  aptX™ Low Latency	~ 40ms
  aptX™	~ 70ms
  FastStream	~ 40ms
  SBC (Sub Band Codec)	~ 220ms

   

  To benefit from the better performance of low audio delay, BOTH the sender and the receiver must support either aptX Low Latency or Fast Stream Codec. If only one side support aptX Low Latency but the other side does not, the streaming will be running with SBC or aptX. You will find that your Bluetooth audio and TV speaker audio are not in sync.

   

  How to fix this? Simply use a aptX Low Latency or Fast Stream supported Bluetooth device, OR get an adapter. You can find more information about aptX Low Latency and Certified aptX Low Latency device list from www.aptx.com. Most Avantree Bluetooth products are aptX Low Latency / Fast Stream supported. 

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• Can I have audio through Speaker AND Wireless Headphones at the Same Time?

  When you connect a Bluetooth headphone to your smart TV, OR you connect a wireless audio transmitter to TV via AUX/OPT wire, it often automatically mutes the TV speaker. Some TVs on the other hand, allows simultaneous audio output from their built-in speakers and other output.

  This feature DEPENDS ENTIRELY ON THE TV ITSELF. Even TVs under the same brand can have different results for this matter.

  Unfortunately, most of the time, the only way to find out whether your TV supports simutanenous output - is to try it and see.

  If your TV offers simutanous output, great!

  If it doesn't, we have some alternative solutions for you to consider.

  For Audio Transmitter Users:

  Solution 1: Connect Transmitter to TV box / AV Receiver instead

  If you have a TV box (DirecTV, Xfinity, Bluray Player etc.), you should be able to find audio output ports on the back of them; try to connect the Avantree transmitter directly to them instead of the TV. This method essentially allows you to "go around " the TV's built-in speakers.

  
  

  Solution 2: Choose models with Microphone Input 

  Choose one of these models: TV Headphone sets (Opera or HT380) or TV transmitters (Orbit) as they support microphone input as well as regular AUX, optical / digital and RCA input.

  If you are not sure whether your TV speaker will work or not when using TV headphones, you'd better get one of these. You can try with normal Optical or AUX connection first. If no luck, then try the microphone input option with the small microphone from the box. 

  For all users:

  Solution 3: For users with TV Soundbar / AV Receiver Speakers 

  3.1 Use Transmitters with Passthrough Function 

  IF you have a SoundBar or Stereo Receiver, return your current prodcut and consider purchasing a Orbit or Oasis Plus or a Opera or a Medley 6018 or a HT5009 or a HT5006 or a Q5049.

  Our industry leading "Bypass" function allows you to put the transmitter/base between a TV AND an external speaker, and have audio come out from both devices AT THE SAME TIME.

              

  
  
  

   

  3.2: Use Audio splitter/extractor

  • For AUX Output - Use an audio splitter (e.g. Avantree TR302) to share the TV's audio between an EXTERNAL SPEAKER and the Transmitter. The splitter in this example is a 3.5mm audio splitter.
                    
  • For Optical AUDIO OUT - Use an optical splitter (e.g. J-Tech splitter) to share the TV's audio between an EXTERNAL SPEAKER and the Transmitter. The splitter in this example is a optical audio splitter.

                                            

  • For HDMI ARC OUT - Use a HDMI Audio Extractor (e.g. iArkPower Extractor) to share the TV's audio between an EXTERNAL SPEAKER and the Transmitter. The splitter in this example is a ACR supported HDMI audio extractor.

                               

  For further assistance, please contact us via support@avantree.com 

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