The fastest way: HDMI ARC or eARC

Connect your Vizio soundbar to your Samsung TV using HDMI ARC (Audio Return Channel) or eARC if your TV supports it. This is the simplest route because one cable carries both picture and sound, and your TV remote will control the soundbar volume. Most Samsung TVs made in the last five years have an ARC-enabled HDMI port — usually HDMI 3 or HDMI 4, marked with "ARC" on the back panel.

Plug an HDMI cable into the ARC port on your Samsung TV and the HDMI ARC input on your Vizio soundbar. Then go to your TV's settings menu, find Sound or Audio, and turn on HDMI ARC. Your soundbar should power on automatically when the TV is on, and audio from any input on the TV — cable box, streaming apps, antenna — will play through the soundbar.

If your soundbar does not power on automatically, check that both the TV and soundbar are set to the same HDMI input. Some older Vizio models require you to manually select the HDMI input on the soundbar itself using its remote or front-panel buttons.

Key Takeaways

  • HDMI ARC is the easiest connection method and requires only one cable between your TV and soundbar.
  • Your Samsung TV's ARC port is usually HDMI 3 or HDMI 4 and is labeled on the back panel.
  • You must enable HDMI ARC in your Samsung TV's Sound or Audio settings for the connection to work.
  • If HDMI ARC is not available, optical audio (TOSLINK) is the next best option and requires a separate cable.
  • Bluetooth pairing works but introduces slight audio delay and is best used only when other methods are not possible.

Using optical audio if your TV has no HDMI ARC

If your Samsung TV does not have HDMI ARC or you prefer not to use it, connect the soundbar with an optical audio cable (also called TOSLINK). This cable carries sound only, not video, so you will still need the HDMI cable for picture if you are using an external device like a cable box or streaming player.

Locate the optical audio output on the back of your Samsung TV — it is a small square port that looks like a headphone jack but square. Plug one end of the optical cable into that port and the other end into the optical input on your Vizio soundbar. Then select the optical input on the soundbar using its remote or front buttons.

Go to your TV's Sound settings and set the audio output to Optical or S/PDIF. The soundbar will now receive all audio from your TV. Optical cables are inexpensive and reliable, though they do not support newer audio formats like Dolby Atmos, which HDMI ARC can handle.

Bluetooth pairing as a last resort

Most Vizio soundbars can pair with Samsung TVs over Bluetooth, though this method has a drawback: there is usually a slight delay between the picture and the sound. This delay is noticeable during movies and makes lip-sync feel off, so Bluetooth is best used only when HDMI ARC and optical audio are not available.

To pair, put your Vizio soundbar in Bluetooth pairing mode by pressing and holding the Bluetooth button on its remote or front panel until the light blinks. Then go to your Samsung TV's Bluetooth settings, search for available devices, and select your soundbar by name. Once paired, the soundbar will connect automatically when both devices are powered on.

If the audio delay bothers you, most Samsung TVs have a lip-sync adjustment in the Sound settings. Look for "Audio Delay" or "Sync Adjustment" and increase the delay value until the picture and sound match. This setting varies by TV model, so check your TV's manual if you cannot find it in the menu.

What to do if the soundbar does not produce sound

If you have connected the cable but hear nothing, first check that the soundbar is powered on — look for a light on the front panel. Then verify that the correct input is selected on the soundbar itself. Use the soundbar's remote to cycle through inputs (HDMI, Optical, Bluetooth) until you see the one you connected.

On your Samsung TV, go to Sound settings and confirm that the audio output is set to the method you chose — HDMI ARC, Optical, or Bluetooth. If you are using HDMI ARC, make sure it is enabled in the TV's settings. Some Samsung models require you to restart both devices after enabling ARC for the first time.

If the soundbar still produces no sound, try unplugging both devices for 30 seconds, then plugging them back in. This resets the connection and often fixes temporary glitches. If the problem persists, check the cable itself — optical cables can break inside the sheath even if they look fine, and HDMI cables can have bent pins. Swap in a new cable to rule this out.

Controlling volume and settings from your TV remote

When you use HDMI ARC, your Samsung TV remote will control the soundbar volume automatically — you do not need the soundbar remote for everyday use. Press the volume buttons on your TV remote and the soundbar volume will change. This works because ARC sends a control signal along with the audio.

If volume control does not work, go to your TV's Sound settings and look for an option called "HDMI Device Control" or "CEC" (Consumer Electronics Control). Turn this on if it is off. CEC is the standard that lets your TV remote talk to the soundbar, and it must be enabled on both devices.

You will still need the Vizio soundbar remote to switch inputs, adjust bass and treble, or access soundbar-specific settings. Keep it in an accessible place, but for daily volume changes, your TV remote will handle it.

Updating your soundbar firmware

Vizio soundbars occasionally receive firmware updates that improve compatibility with Samsung TVs and fix connection issues. Check whether your soundbar has a newer version available before troubleshooting further.

To update, read the Vizio SmartCast app on your phone and connect your soundbar through the app. The app will notify you if an update is available and walk you through the installation. Updates usually take five to ten minutes and require the soundbar to be plugged in and near your phone.

If your soundbar is older and no longer receives updates, it will still work with your Samsung TV, but you may not have access to the latest features or bug fixes. Check the Vizio support website for your soundbar model number to see when updates were last released.

Frequently Asked Questions

Can I use HDMI ARC if my Samsung TV is older than five years?

Many Samsung TVs from five to ten years ago have HDMI ARC, but not all. Check the back panel of your TV — if one of the HDMI ports is labeled "ARC," you have it. If not, use optical audio instead, which works on nearly all TVs with a sound output.

Will the soundbar work if I connect it to my cable box instead of the TV?

No. The soundbar must connect to the TV so it receives audio from all sources — cable, streaming apps, antenna, and anything else plugged into the TV. If you connect it to the cable box alone, you will only hear cable audio, not streaming services or other inputs.

Why is there a delay between the picture and sound with Bluetooth?

Bluetooth has inherent latency because it compresses and transmits audio wirelessly, which takes time. HDMI and optical cables carry audio at the speed of light with no compression, so there is no delay. If you notice lip-sync issues, switch to HDMI ARC or optical audio.

Do I need to buy a special HDMI cable for ARC?

No. Any standard HDMI cable works with ARC. You do not need an expensive "ARC-certified" cable — the feature is built into the port, not the cable. A basic HDMI cable costs a few dollars and will work fine.

What if my Vizio soundbar has no HDMI input?

Older or budget Vizio soundbars may have only optical and Bluetooth inputs. In that case, use the optical cable from your TV to the soundbar. This is a common setup and works reliably, though you will not get the convenience of one-cable connection or TV remote volume control.