How to Use the Optical Out S/PDIF Port on Your PC


The S/PDIF (Sony/Philips Digital Interface) is a digital audio interconnect that allows for the transmission of digital audio signals from one device to another. Most modern computers and audio devices come equipped with this port, which provides a high-quality connection for various multimedia applications. In this article, we will discuss how to use the optical out S/PDIF port on your PC for optimal audio experience.

Step by Step Guide:

1. Locate the Optical Out S/PDIF port on your PC: First, find where the optical out S/PDIF port is on your computer. This port is usually located at the back of your computer’s tower or laptop and is marked with an illuminated square icon.

2. Acquire an appropriate cable: To connect your PC to an audio device such as speakers or a receiver, you’ll need a TOSLINK or optical cable. These cables are available in various lengths and can be purchased at electronics stores or online.

3. Connect the cable: Plug one end of the TOSLINK/optical cable into the Optical Out S/PDIF port on your PC, and plug the other end into the corresponding input on your audio device.

4. Switch to digital audio output: Go to your PC’s settings to ensure that digital audio output is selected as the default. On Windows, right-click on the speaker icon in the system tray, select ‘Sounds’, click on the ‘Playback’ tab, and choose ‘Digital Output’ or ‘S/PDIF’. On macOS, go to System Preferences > Sound > Output and select ‘Digital Out’ or ‘S/PDIF’.

5. Configure audio settings: Some sound systems will automatically configure themselves for S/PDIF input, while others may require manual setup through their menus or remote controls. Refer to your audio device’s documentation for specific instructions on how to configure settings, such as audio format (Dolby Digital, DTS, or PCM) and speaker configuration.

6. Test the connection: Once your audio settings are configured, play some audio content on
your PC to ensure that the digital audio signal is being transmitted to your connected device. You should now experience high-quality sound without distortion or interference.


By making use of the optical out S/PDIF port on your PC, you can enhance your audio experience and fully enjoy multimedia applications. This digital interface ensures a reliable and superior connection between devices, offering better sound quality than traditional analog connections. Follow the steps outlined above to set up and utilize your computer’s Optical Out S/PDIF port effectively.

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