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Hisense TV Sound Distorted – 9 Fixes

Hisense TV Sound Distorted – 9 Fixes

Hisense TV picture quality is great, but you may notice that its sound is sometimes distorted, ruining your movie night with robotic or crackling dialogues.

If your Hisense TV sound is distorted, the sound booster settings might be causing over-amplification, or audio digital output configurations are incorrect. To fix this, go to Hisense TV settings and toggle off the “Bass Boost,” “Surround Sound,” “Dialog Clarity,” and “‘TruVolume” one by one to filter out the problematic setting. If this fails, change the digital output settings on your TV from “Dolby” to “PCM.” 

In this article, we’ll explain why your Hisense TV sound is distorted and provide you with some easy-to-follow fixes to tackle this problem quickly.

What causes sound distortion on Hisense TV?

What causes sound distortion on Hisense TV

If your Hisense TV sound is distorted, this could be due to one of the following reasons:

  • Too high TV volume.
  • Loose or faulty cable connection between the TV and the external speaker.
  • Over-amplification due to active sound boosters on the TV.
  • Dust and debris accumulation in the speaker grill or vent.
  • Incorrect digital output configurations.
  • Outdated Hisense TV firmware.
  • Corrupt Hisense TV cache.
  • Defective internal speaker.

How do I fix sound distortion on my Hisense TV?

fix sound distortion on Hisense TV

If your Hisense TV sound is distorted, here are 9 tried and tested methods that have helped many users resolve this frustrating issue. 

Reduce the TV Volume

Setting your Hisense TV volume too high often causes the audio signals to distort or sound to crackle, especially when the built-in speakers are pushed to their limits.

To fix this, press the “(-)” or “Volume Down” button on the remote or TV’s back/front panel to reduce the sound to a moderate level.

Check the Cable Connection

A loose or faulty cable connection between your TV and external speakers, soundbar, or audio system can be why the output volume is distorted.

The quick fix here is to recheck and firmly plug all the cables into their respective ports on both the TV and the external audio device.

Do check the HDMI, optical, or other audio cables for any wear and tear and replace them with a new one if needed. 

Also, ensure clearing the external speaker jack or HDMI port using a can of compressed air to remove any dust particles that might be responsible for this problem. 

Disable the Audio Boosters

Audio boosters like bass boost, surround sound, and dialog clarity sometimes result in over-amplification, distorting the Hisense TV sound output.

To fix this, disable all the audio boosters on your TV one by one to find out which setting is the culprit. Here’s how:

  • Open “Settings” (gear icon) from the top left-right side of the Hisense TV home screen.
  • Select “Sound.”
  • Choose “Sound Mode Settings.”
Hisense TV sound mode settings

Now, toggle off the switch next to “Bass Boost,” “Surround Sound,” “Dialog Clarity,” and “‘TruVolume” one after another. After you find out which option is leading to this frustrating issue, keep it disabled.

In case this doesn’t help, go to the “Equalizer” settings under “Sound Mode Settings” and set “100Hz” up to “10dB” and “500Hz” to “5dB.”

Clean the Speaker Grill/Vent

Over time, dust and debris accumulate on the grill or vent of the Hisense TV’s internal speaker, which hinders its ability to produce clear and crisp sound.

Therefore, it’s best to clean the grill/vent of the speaker this way:

  • Turn off your Hisense TV and unplug it from the main wall. 
  • Take a soft brush and carefully remove any visible dust particles on the speaker grills.
  • Hold the can of compressed air upright at a safe distance from the grills/vents and apply short bursts to clear any trapped dust. 

Finally, turn on your TV, test the audio, and verify the fix!

Change the Digital Output Configurations 

Misconfigured digital audio output settings on your Hisense TV may process and send the signals in a format your external audio device (soundbar or home theater system) can’t fully interpret.

For this reason, its audio gets distorted, and you cannot fully enjoy the intended sound quality. 

So, configure the digital output setting on your Hisense TV with these steps: 

  • Open Hisense TV “Settings.”
  • Choose “Sound.”
  • Choose “Advanced Sound Settings.”
  • Select Digital Audio Out.”
  • Choose “PCM” instead of “Dolby.”

Reset the Hisense TV Sound Mode Settings

Incorrect sound mode settings on your Hisense TV are often the main reason the Live TV or on-demand content sounds face distortion. 

To resolve this, reset these settings to default by following these instructions:

  • Open the Hisense TV “Settings” (gear icon in the top left corner of the screen).
  • Choose “Sound.”
  • Select “Sound Mode Settings.”
  • Select “Reset Current Mode.”
Resetting hisense tv sound mode
  • Choose “OK” to confirm.
  • Test the sound.

Update Hisense TV

An outdated Hisense TV firmware can also cause this issue, along with too low volume. 

To update:

  • Connect your Hisense TV to a stable and reliable Wi-Fi connection.
  • Open Hisense TV “Settings.”
  • Scroll down and select “Support.”
  • Select “System Update.”
  • Choose “Check For Firmware Upgrade.”

Wait for your TV to search for new updates and install them. Then, stream and check the sound quality.

Clear the Hisense TV Cache

Clearing the Hisense TV cache might also help you resolve the sound distortion and make the most out of your audio & visual experience. Here’s how: 

  • Open Hisense TV “Settings.”
  • Select “System.”
  • Scroll down; select “Application Settings.”
  • Choose “Clear Cache.”
  • Select “Clear,” and that’s about it!

Reset Hisense TV

The last resort to fix this problem is to reset your Hisense TV to its default settings to clear out any system glitches, bugs, or misconfigurations. To do this:

  • Open Hisense TV “Settings.”
  • Select “Support.”
  • Select “Reset to Factory Default.”
  • Enter the system PIN.
  • Tick “Save the Existing Channels and My Favorite Channels on This TV.”
  • Choose “Restore.”
  • Enter the reset PIN.

Let the reset process complete, retune your Hisense TV, and the problem should be resolved now.

Conclusion

In this comprehensive guide, we’ve explored why your Hisense TV sound is distorted and how you can fix this issue as soon as possible. 


Hopefully, you can now enjoy movies, documentaries, and the adrenaline rush of gaming on your TV with the sonic perfection they deserve.

If the problem still bothers you, it’s possible the TV hardware is malfunctioning. Your best bet here is to take it to the authorized Hisense repair shop or consult a professional technician for accurate diagnosis and repair.

You can also get in touch with the Hisense Support team and discuss the problem. To contact them:

  • Call at +1 (888) 935-8880.
  • Email at service@hisense-usa.com.

Fill out the Hisense support Online form.

Author

  • Tauqeer Ahmed

    Tauqeer Ahmed is a technology expert with over 10 years of experience in the industry. He has a degree in Computer Science and specializes in network security and software troubleshooting. You can find out more about him at https://helpfixthat.com/tauqeer-ahmed/