Digital audio output on a TV is a port that sends sound to external speakers like soundbars, home theatre systems, or AV receivers. It passes the audio in a digital format, which helps preserve sound quality and supports surround sound formats such as Dolby Digital and DTS, thus letting you enjoy clearer, more immersive sound than what built-in TV speakers typically provide. If you want to upgrade your TV’s audio, here is what digital audio output means and how it works.
What does digital audio output in TVs mean?
Digital audio output is a feature that lets your TV send sound to an external audio system in a digital format. Instead of using traditional analogue cables, which can reduce sound quality, this setup delivers clearer and more accurate audio. You will usually find this output as either an optical port, also called TOSLINK, or a digital coaxial port, depending on your TV.
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When you connect a soundbar, home theatre system, or AV receiver to your TV using this output, the audio travels in a format that supports better sound performance. Most digital audio outputs work with surround sound technologies like Dolby Digital and DTS, which create a more immersive experience. Once everything is connected, your TV sends all the audio from your streaming apps, cable box, or any HDMI-connected device through this digital output to the external speakers.
How does digital audio output on a TV work?
Once you connect your external audio system to the TV’s digital output, the TV begins sending all sound, whether it is from apps, set-top boxes, or HDMI sources, directly to the connected device. Because the signal remains digital during transmission, the sound stays sharp and consistent without the noise or interference that analogue cables can introduce.
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The external speaker system then decodes the signal, allowing it to play back audio in surround sound or high-quality stereo, depending on what the content supports. This process is automatic once everything is set up, so you get enhanced audio without any extra steps after the initial connection.
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Veera Raghavan
I connected my 55 inch croma smart tv hdmi to hdmi audio convertor and convertor l and r audio output to my old audio system 3.5 mm jack. But I was not getting tv audio to my external audio system speakers. My audio system is in excellent condition. Is thete an option in this tv to set audio setting to hdmi instead of tv speakers?