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The Daily Insight

What is the use of optical input on soundbar?

Author

Emily Sparks

Published Mar 24, 2026

What is the use of optical input on soundbar?

The best connection, if it is available both on your TV and soundbar, is a Digital Optical audio connection. This feature uses a beam of light to send a digitally encoded audio signal between your TV and your Sound Bar. By using light, there is no loss or interference to the signal.

Which is better AUX or optical?

In terms of audio quality, aux is more open to line loss and interference. Higher quality aux cables can also help as they’re better shielded. Optical isn’t foolproof either. Though not prone to interference in the way that aux is, digital can ‘lose’ data, especially over longer cable runs.

Where is the optical cable on a sound bar?

The INPUT jack is on the back of your soundbar. Secondly, enter the other end of the Optical Cable to the Optical Digital OUT port which is on the back of your TV. Next, let’s connect the external device and the TV.

How can I connect my sound bar to my TV?

Connect another device to your Sound Bar and TV using HDMI (without ARC) and an optical audio cable Connect your external device to the HDMI IN port on your TV with an HDMI cable. Connect the external device to your sound bar with an optical cable.

Why does my Sony sound bar not turn on?

The soundbar doesn’t output the TV sound or doesn’t turn on when the TV is turned on This happens when the Control for HDMI function of the soundbar is off. Enable the Control for HDMI function to resolve the issue. On the remote control, press and hold the VOICE button for five seconds. Make sure

What kind of cable do I need for a soundbar?

HDMI ARC (Audio Return Channel) sends the audio signal from the TV to the soundbar. An HDMI ARC port can be used as a regular HDMI input, but as mentioned, it doubles as an audio output. A Digital Optical cable, also referred to as an Optical cable, will produce a reliable and consistent sound.

The INPUT jack is on the back of your soundbar. Secondly, enter the other end of the Optical Cable to the Optical Digital OUT port which is on the back of your TV. Next, let’s connect the external device and the TV.

Can a sound bar be connected to a TV?

Connect the TV’s optical digital audio output terminal to the OPTICAL IN terminal on the Sound Bar. NOTE: When other devices are connected to the Sound Bar via HDMI IN 1 to HDMI IN 3, the Sound Bar can play their audio, but the TV screen cannot display any images.

HDMI ARC (Audio Return Channel) sends the audio signal from the TV to the soundbar. An HDMI ARC port can be used as a regular HDMI input, but as mentioned, it doubles as an audio output. A Digital Optical cable, also referred to as an Optical cable, will produce a reliable and consistent sound.

How do you connect a sound bar to a set top box?

This can happen when you’re using a set-top box that isn’t directly connected to your sound bar. Depending on the age of your box, you might need to either connect RCA cables directly to your sound bar (these are the red and white connectors on older models) or use digital optical (newer models) and, again, connect these directly to your sound bar.