Why a Hisense TV sends no sound through a soundbar
If you have a Hisense TV no sound through soundbar problem, the issue usually comes from a connection, output setting, or audio format mismatch rather than a failed device.
The good news is that most cases can be solved with a few targeted checks.
Hisense TVs support several audio paths, including HDMI ARC, HDMI eARC, optical digital audio, Bluetooth, and built-in speakers.
When one part of the chain is configured incorrectly, the TV may show picture normally while the soundbar stays silent.
Check the connection type first
The fastest way to isolate the problem is to identify how the soundbar is connected.
Different cables and ports behave differently, and each path has its own limitations.
HDMI ARC and eARC
HDMI ARC or eARC is the preferred option for most modern setups because it can carry higher-quality audio and allows the TV remote to control volume.
On a Hisense TV, the soundbar must be connected to the HDMI port labeled ARC or eARC, not just any HDMI input.
- Use a certified High Speed or Ultra High Speed HDMI cable.
- Connect the soundbar to the TV’s ARC/eARC port only.
- Confirm the soundbar’s HDMI output is also set to ARC or TV Audio, if applicable.
Optical audio
An optical cable is more stable in some older systems, but it does not carry advanced formats such as Dolby Atmos in the same way eARC can.
Make sure the cable clicks fully into place on both ends, and remove any protective caps from the connectors.
Bluetooth
Bluetooth audio is convenient, but it is more prone to pairing failures, latency, and volume mismatches.
If the TV is connected to a soundbar by Bluetooth, check whether the soundbar is actually paired and selected as the active output device.
Verify the Hisense TV audio output setting
Many no-sound cases happen because the TV is still set to internal speakers or an incorrect digital output mode.
Hisense menus vary by model and Roku TV, Google TV, or VIDAA platform, but the logic is the same.
- Open the TV settings menu.
- Go to Sound or Audio output.
- Select HDMI ARC, eARC, Optical, External Speakers, or the paired Bluetooth device.
- Disable TV speakers if the menu separates internal and external audio outputs.
If you recently updated the TV or reset it, the output setting may have reverted to default internal speakers.
Match the digital audio format to the soundbar
A common cause of Hisense TV no sound through soundbar complaints is an audio format mismatch.
Some soundbars support PCM only, while others handle Dolby Digital, Dolby Digital Plus, DTS, or Dolby Atmos.
If the TV is sending a format the soundbar cannot decode, you may hear silence even though the connection looks correct.
Try PCM first
PCM is often the safest fallback format for troubleshooting.
If sound returns in PCM mode, the cable and connection are probably fine, and the issue is likely a codec support mismatch.
- Open the TV audio settings.
- Find Digital Audio Out or Audio Format.
- Set it to PCM or Stereo PCM.
Then test Dolby Digital or Auto
Once basic audio works, try Auto or Dolby Digital if your soundbar supports it.
For Atmos-capable systems using eARC, make sure both the TV and soundbar have eARC enabled and firmware updated.
Confirm ARC, eARC, and CEC settings
ARC and eARC require more than the correct cable.
They also rely on HDMI-CEC, the control feature that lets devices communicate across HDMI.
- On the Hisense TV, enable HDMI-CEC if it is disabled.
- Look for CEC names such as Anynet+, CEC, or Control other devices depending on the model.
- Make sure ARC or eARC is enabled in the soundbar’s own settings or app.
If CEC is off, the soundbar may not wake up properly or may not receive audio at all.
Inspect the cable, port, and power cycle the system
Hardware issues are common and often overlooked.
A cable that passes video may still fail at transporting audio correctly, and a loose connector can be enough to break the audio handshake.
Replace or reseat the HDMI cable
Unplug both ends, inspect them for damage, and reconnect firmly.
If possible, test with another HDMI cable known to work with ARC or eARC.
Test a different port
Use only the dedicated ARC/eARC port on the TV, but if the soundbar has multiple HDMI ports, test the input or output the manufacturer specifies for TV audio.
Perform a full power cycle
Power cycling can clear HDMI handshake problems that survive a normal reboot.
- Turn off the TV and soundbar.
- Unplug both devices from power.
- Wait at least 60 seconds.
- Reconnect the TV first, then the soundbar.
- Turn on the TV and select the soundbar output again.
Check the soundbar settings and source selection
Some soundbars do not automatically switch to the TV input.
If the bar is set to Bluetooth, USB, optical, or another source, it may ignore the TV audio signal.
- Use the soundbar remote or app to select HDMI ARC, TV Audio, or Optical as needed.
- Raise the soundbar volume and ensure it is not muted.
- Check whether the soundbar has a separate input mode for ARC versus standard HDMI.
Also confirm that the soundbar is not in a demo mode, night mode, or dialogue-only mode that can make audio seem absent or extremely quiet.
Update firmware on both devices
Firmware bugs can affect HDMI handshakes, audio passthrough, and CEC control.
Hisense frequently releases software updates for smart TV platforms, and soundbar manufacturers may also patch ARC/eARC compatibility.
Check for updates in the TV’s system settings and in the soundbar app or support site.
If the soundbar has an update available, install it before retesting the connection.
Handle app-specific or broadcast-specific audio problems
If sound only fails in certain apps or channels, the issue may not be the soundbar connection itself.
Streaming services sometimes output unsupported surround formats, and some live broadcasts switch audio tracks unexpectedly.
- Test the TV menu sounds or another app to confirm whether all audio is affected.
- Switch the app’s audio track from surround to stereo if available.
- Try a different title or channel to compare behavior.
If the soundbar works with the TV menus but not with one app, the problem is likely an app setting or format issue rather than a hardware fault.
When optical works but HDMI ARC does not
When optical audio works but HDMI ARC does not, the TV and soundbar are probably capable of audio transmission, but the ARC handshake is failing.
This usually points to CEC, cable quality, or port compatibility.
In that situation, a practical troubleshooting order is:
- Enable CEC and ARC on both devices.
- Reset audio settings to defaults.
- Test a different HDMI cable.
- Update firmware.
- Try a factory reset only after simpler steps fail.
When the soundbar still stays silent
If you have ruled out cable, output settings, audio format, and source selection, the problem may be deeper.
A defective HDMI ARC port, corrupted TV settings, or internal soundbar fault can all produce a no-audio symptom.
Useful final checks include testing the soundbar with another TV, testing the Hisense TV with another sound system, and performing a factory reset on the TV and soundbar one at a time.
If the issue persists across multiple devices and cables, hardware service may be necessary.
Most common fixes at a glance
- Use the correct HDMI ARC or eARC port.
- Set the Hisense TV audio output to external speakers or ARC.
- Change digital audio format to PCM for testing.
- Enable HDMI-CEC on both the TV and soundbar.
- Reseat or replace the HDMI cable.
- Power cycle both devices completely.
- Update firmware on the TV and soundbar.
- Verify the soundbar is on the correct input and not muted.