7 Must-Know Facts About Digital Audio Output on TVs

Introduction to Digital Audio Output on TVs

The significance of Digital Audio Output on TVs in a home entertainment setup cannot be understated. It becomes crucial when you are integrating your television with a soundbar or an upscale audio receiver. By grasping the functioning of digital audio output, you can significantly uplift your viewing pleasure.

Deciphering Digital Audio Output

Digital Audio Output is the term used for the signal that is transferred from one device like your TV to another device such as a soundbar or a surround sound system. This signal encapsulates all the auditory information from the content you are consuming, be it a movie, a television series, or a live sports match.

Digital Audio Output on TVs

The two primary types of digital audio outputs available on televisions are Optical (also referred to as Toslink) and HDMI ARC (Audio Return Channel). Each of these has its unique features and uses.

Optical Digital Audio Output

An Optical Digital Audio Output, or Toslink, utilizes a fiber-optic cable to transmit a high-quality digital audio stream from your television to your speaker system. This kind of connection is mostly employed for stereo sound or 5.1 surround sound configurations.

The main benefit of using an optical cable for digital audio output is the separation of audio and video signals, which prevents any interference between them. This results in a clear, sharp sound that enhances the visuals on your screen.

HDMI ARC Explained

HDMI ARC, an acronym for High Definition Multimedia Interface Audio Return Channel, enables bidirectional audio signal transmission through a single HDMI cable. This allows you to link your television to an external speaker system and reciprocally transmit audio from the speaker system back to the television if required.

HDMI ARC’s primary advantage is its support for advanced audio formats like Dolby Atmos and DTS:X, providing immersive, multi-dimensional sound.

Setting Up Digital Audio Output on Your TV

To set up digital audio output on your TV, you need to connect your external audio device using an optical or HDMI ARC cable and modify the TV’s settings. Here’s an elaborate step-by-step guide:

Step 1: Link Your External Audio Device

Locate the optical or HDMI ARC port on your television and your external audio device. Connect one end of the cable to the TV’s corresponding port and the other end to the external audio device.

Step 2: Modify Your TV’s Sound Settings

Once your devices are connected, go to your television’s settings menu. Find ‘Sound’ or ‘Audio’ settings and choose ‘External Speakers’ or ‘Audio System.’ Ensure that the digital audio output format is compatible with your external audio device’s capabilities.

Step 3: Validate Your Setup

Play content on your television to check if the setup is functional. The audio should be emitted from your external speakers, offering improved quality compared to the TV’s inbuilt speakers.

For more details, you can check out these easy steps to stream audio from pc to android.


Understanding and correctly setting up Digital Audio Output on your TV can drastically enhance your home entertainment experience. The choice between an optical connection or HDMI ARC depends on your specific audio requirements and the capabilities of your external audio devices. By adhering to the steps mentioned above, you can achieve optimal sound quality to complement your television’s visuals.

Related Posts

Leave a Comment