How to fix Sound Delay on Vizio tv: Adjusting Vizio tv lip sync setting

How to fix Sound Delay on Vizio tv? Welcome to this comprehensive guide on how to fix sound delay on vizio tv.

If you’ve ever encountered the issue, you know how nagging it is. But today, we bring you solutions on how to fix it. 

Let’s explore the Vizio tv sound delay problem. Further, this article will cover adjusting the vizio tv lip sync setting and other similar insights. 

Table of Contents

What is Lip Sync on Vizio TV?

A lip sync problem happens when there’s a sound delay issue as you play a video on your Vizio TV. It makes it hard to connect the facial expressions to the sound.   

It’s also common after one updates Vizio SmartCast TV software. But you can solve it via the numerous solutions we’ll highlight below. 

Primary Sound Issues on Vizio TVs

A couple of Watching TV with Audio Sync Issues. 

A couple of Watching TV with Audio Sync Issues. 

The two main sound problems you’ll encounter when using your Vizio TV are as follows: 

VIZIO TV Audio Out of Sync

It’s an infrequent issue and usually not so profound, but it spoils the watch experience when it happens. 

Often, the problem goes away when you switch off your TV and back on again. 

VIZIO TV Audio Delay

It is similar to the audio above out-of-sync problem. 

But this is more serious. When there’s an audio delay, every other functionality will be okay. 

However, what’s on display will be different from the audio. 

This problem is more nagging than the out-of-sync issue because it’s recurrent.  

How to Fix Sound Delay on Vizio TV?

Adjusting TV settings. 

Adjusting TV settings. 

If you’re facing either of the above issues, don’t fret. Below are the primary diagnostic and mitigation measures of sound delay. 

Switch off Digital Enhancer Settings

Vizio has some exquisite features to improve their devices’ sound output. There are three main kinds of these enhancer settings including: 

They grant you a range of customizations to improve the listening experience. 

Nonetheless, their input is counterproductive to the system’s stability. 

The enhancer settings are responsible for the majority of the sound delay issues. 

Therefore, switching them off means that you can handle the audio delay. 

But this comes at a cost; you will not access the functionalities they deliver. 

To switch them off, click the Settings button and select Audio Settings. 

Next, toggle each of the digital enhancer settings from the resulting window. 

Change Fixed Analog Audio Out Setting to Variable

A subwoofer for use with a Vizio TV. 

A subwoofer for use with a Vizio TV. 

This resolution works for those with an external sound output device on the Vizio TV. The default analog audio out setting is ‘fixed.’ 

Hence, when you connect an external device, such as a speaker, you must change it to ‘variable.’ 

Here’s how to implement this change: 

  • Click ‘Settings’ on your Vizio TV Remote
  • Select ‘Audio Settings.’
  • Choose the ‘Analog Audio Out Setting.’
  • Click the toggle button to select ‘Variable’ from the  ‘Fixed’ default option. 
  • Check if the external sound output device’s sound delay is fixed. 

Power Cycle the VIZIO TV

TV socket plugs on the wall. 

TV socket plugs on the wall. 

There’s arguably no better way to solve electronic functionality issues than power cycling. 

The process ensures that any bug preventing smooth device function is erased. It’s a sort of hardware reboot. 

Hence, we advise you to primarily software reboot your TV before power cycling.

 It will ensure that everything (hardware and software) is refreshed on power cycling. Below are the soft reboot steps: 

  • Click System from your Vizio TV remote 
  • Next, choose ‘Reset & Admin.’
  • Finally, select ‘Soft Reboot.’ It’ll be a ‘Soft Power Cycle’ on some Vizio TVs. The TV will go off for the reboot and then back on again. 

Next, go ahead and power cycle the TV. The power cycling process is similar for all devices. 

  • Primarily it involves unplugging the TV’s power supply cord from the socket. You should allow the device to stay unconnected for about two minutes. 
  • Next, hold the remote controller’s power button for approximately 15 seconds. 
  • After two minutes, plug the TV back into the socket but don’t switch it on first. Let it stay undisturbed for about a minute, then switch it on. 

Tweak Lip Sync Adjustment Settings

Adjusting a TV’s settings. 

Adjusting a TV’s settings. 

Say that none of the measures we’ve covered so far are fruitful. Another option is to adjust the lip sync settings on your TV anytime the problem arises.  

  • Click ‘Audio Settings’ from the ‘Settings’ Option on your Vizio TV Remote
  • Next, select the ‘Lip Sync Adjustment.’ It will open up to a meter with calibrations.
  • Adjust the sync meter to the proper levels while testing the lip sync after each tinkering. 
  • Next, connect your external speakers after you’ve found the appropriate lip sync level. 

Configure Sound Settings on External Devices

TV watching (movie) with snacks lying on the table.

TV watching (movie) with snacks lying on the table.

Often we link up our TVs with external devices such as streaming sticks. It helps you access more streaming content. 

Sometimes when you’re having sync problems, the issue could be the streaming stick. 

Check its sound settings and configure them to solve the lip sync issue. 

Roku Streaming Devices

  • If you have a Roku Streaming Stick, click ‘Settings’ from the Roku remote and select ‘Audio.’ 
  • You’ll need to change the default audio mode. Set it to ‘Stereo.’
  • Next, select HDMI, still from the Audio settings menu, and set it up to ‘Stereo PCM.’
  • Now switch off the volume leveling by primarily switching off the star button on your Roku remote. Next, choose the sound settings, then turn it off. 

Comcast Cable Box

  • Click on Menu, then ‘Audio Settings.’
  • Next, switch to  ‘L-PCM’ from the default ‘Auto’ Setting.’ 

Turn Off the TV Speaker & eARC.

A Vizio TV is showing a soccer match. 

A Vizio TV is showing a soccer match. 

The audio lag may be because you have switched on the TV volume while using an external speaker. 

Hence, you must switch off the TV speaker and only use the external sound output component. 

Click on Menu, then Audio, and select the option to switch off the TV Speaker. While still on the audio settings, turn off the eARC. 

Update TV Firmware

If your Vizio TV software needs to be updated, you may experience sound output problems. Hence, you can fix the problem by updating it. 

Therefore, click on the System option from your TV menu to check if there are available updates. 

If present, download it and let the TV update the system. Now try playing a video and see if this has fixed the audio delay challenge. 

Factory Reset Your TV

A Factory Reset Button. 

A Factory Reset Button. 

Factory resetting aims to clear up all settings you made on your TV. 

So do you feel there’s a setting you don’t know that could be causing the audio delay?

 First, we advise you to try out the above mitigation measures. 

If none works, factory reset it to have your TV as good as new. 

Contact Vizio Support

Finally, contact Vizio support if the discussed diagnostic methods are not working.

 If your TV warranty is valid, they may even provide you with a new device. 

Alternatively, the Vizio customer support team will advise you on further ways to fix the audio delay. 


We hope your audio delay problem is now a thing of the past with our insights. 

Start with the measures we have provided preferably, then if none works, go to the next, and so on. 

We wish you an excellent time as you enjoy streaming content on your Vizio TV.