# Converting TV USB Ports Into Headphone Jacks Using DACs Bypass missing analog audio outputs on modern televisions with simple hardware workarounds. - **Source:** [How-To Geek](https://www.howtogeek.com) - **Published:** 2026-10-30 - **Topic:** [Software & Engineering](https://brifing.si/c/engineering) - **Original article:** - **On Brifing:** https://brifing.si/s/401539c8-dae6-4065-9c79-95360aa9efbd ## Modern TV Connectivity Limitations Modern televisions frequently lack dedicated headphone jacks or analog audio outputs, complicating setups for users who prefer external speakers. This trend forces consumers to seek creative workarounds to bridge the gap between digital-only hardware and legacy analog audio equipment. The author addresses this by repurposing existing hardware to restore essential functionality. ## USB DAC Audio Implementation The author successfully utilized a UGREEN Digital to Analog Converter, originally intended for Linux systems, by connecting it directly to a TCL Google TV USB port. The TV automatically recognized the device, shifting audio output to the external speakers. This method leverages the underlying Android architecture that supports USB audio devices. ## Troubleshooting USB Audio Compatibility While the USB DAC solution worked seamlessly on this specific Google TV, compatibility is not universal across all television operating systems. Users might need to enable Developer Mode and manually toggle USB audio switching settings if the device does not immediately recognize the external hardware. Testing existing equipment is recommended before purchasing. ## Optical TOSLINK Backup Method The optical TOSLINK connection remains a reliable, standardized alternative for audio output on most AV equipment. By purchasing a fifteen-dollar optical to 3.5mm converter, users can achieve CD-quality stereo audio. These converters are typically USB-powered, allowing them to draw necessary electricity directly from the television's available ports without extra cables. ## Comparing Audio Output Strategies The USB DAC method offers a cleaner cable management solution compared to the optical converter, which requires two separate cables. However, the optical method is more reliable, as it is guaranteed to work on any TV equipped with an optical port. The USB approach remains a gamble depending on specific OS support. ## Legacy Hardware Audio Integration Beyond modern TVs, these converters effectively solve audio issues for older devices like the PlayStation 2 Slim. Using an optical converter eliminates the persistent buzzing noise often associated with standard RCA audio outputs. This provides a clean, high-quality signal path for headphones, significantly improving the listening experience for retro gaming enthusiasts. ## Advanced Audio Extraction Options For users requiring higher fidelity or more complex routing, HDMI audio extractors serve as a robust alternative. While these devices are more expensive than simple DACs or optical converters, they provide superior signal processing. Most users, however, will likely find the audio quality difference negligible compared to the cheaper, simpler conversion methods. ## AV Receiver eARC Potential Before investing in external converters, users should verify if their existing AV receiver supports HDMI eARC. This connection allows for seamless audio routing from the TV to the receiver, which often features dedicated headphone jacks or analog outputs. Checking for eARC compatibility is a crucial first step in any home audio configuration. ## Sources covering this story - https://www.howtogeek.com/i-turned-my-tvs-usb-port-into-a-headphone-jack-with-a-dongle-i-already-owned/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._