What You Should Know About the SPDIF Connection (2025 Guide)

Adding SPDIF Outputs to your Computer

Almost all motherboards have the SPDIF interface, even if the motherboard doesn’t come with SPDIF connectors soldered on it. If you want to add SPDIF connectors to your computer, you must look for a header on the motherboard that has the SPDIF output. This header can be found with several different names, such as “JSP1” (see Figure 16), “SPDIF_OUT” (see Figure 17), “SPDIFO,” “SPDIF_O,” “HDMI_SPDIF,” etc. The product manual may help you.

You will need to buy an adapter and install it to the SPDIF header available on your motherboard.

Frequently Asked Questions

Which is better: HDMI or SPDIF?

The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on Blu-ray: Dolby TrueHD and DTS HD Master Audio. In terms of simplicity, HDMI also passes video signals. So if you want just a single cable between two devices, HDMI is your pick. All in all, HDMI is far more capable than any SPDIF connection, so just go with that if you have the possibility of doing so. No doubt, in today’s world, you can easily find TVs and other similar devices with one or even several HDMI connections to boot.

Can you convert SPDIF to optical?

Yes, but you’ll need special connectors to do so. You can find more complex answers to this question by visiting this forum thread.

What is PCM audio?

Pulse-Code Modulation (PCM) and the Dolby Digital technology refer to different types of digital audio recordings. PCM is the conventional method for converting analog audio into digital audio. The PCM audio recorded on DVD is a two-channel digital, stereo audio track. The Dolby Digital technology, which was originally called AC3, was developed specifically for multi-channel applications, including film sound and digital surround sound in the home. Dolby Digital technology uses a 5.1 or six-channel format. The 5 channels include the Stereo left and right front channels, Stereo left and right surround channels, and the center channel.

Final Thoughts

There you have it. That’s about all there is to know about the SPDIF connection. We hope you’ve found the article interesting and that it has answered all of your burning questions. If you want, you can also leave us a comment down below with suggestions, corrections, or other thoughts you might have on the matter.

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