Video streams and documentation in the lab: a customized OBS server with space for (almost) everything

1 - Introduction and Requirement Profile 2 - Intel or AMD? 3 - What is the purpose of a RAM disk? 4 - NAS Hard Drive for Storage 5 - Video Ccapturing and Encoding 6 - Summary and Conclusion

Video capturing and cameras

The Elgato 4K60 Pro MK.2 installed in the system takes over the direct HDMI recording of high-resolution image signals from the Obsbot Tail 2 in the studio with up to 2160p60 in uncompressed quality. As an internal PCIe card, it operates with low latency and is fully compatible with OBS Studio and other DirectShow-based applications. The card is extremely stable in operation and enables the loss-free capture of camera signals, for example for top-down recordings during technical conversions or the recording of external devices such as cameras with clean HDMI output. The PCIe connection via four lanes on a modern B860 mainboard allows a permanently high data rate without bottlenecks, even with simultaneous SSD use or active network traffic. Integration into the system is direct and without conflicts, which is particularly important when using several recording sources at the same time.

I have already written enough about the main camera, the Obsbot Tail 2, and there is also a detailed test here. This is a compact, AI-controlled PTZ camera with 4K resolution, which is particularly characterized by its automatic subject tracking and gesture control. The HDMI output is particularly interesting for use in the studio, as it provides a low-latency and clean image signal that can be fed directly into capture solutions such as the Elgato 4K60 Pro MK.2. This allows the camera to be integrated into a professional setup and fully integrated into OBS without the need for a detour via Wi-Fi or an app, making it ideal for dynamic shots at the table or in long shots where motion tracking and simultaneous direct recording are required.

In addition, an Elgato Facecam is used, which is connected via USB-C and is used for direct frontal recording at close range. The camera delivers a sharp, constantly exposed 1080p60 signal and, thanks to its fixed focal length and low delay, is ideal for speech passages, presentation overlays or detailed shots of precision mechanical work. Thanks to the fast USB 3.2 connection via the mainboard, both the Facecam and another USB camera with Full HD can be operated in parallel on this mainboard without any problems. The high bandwidth of the USB interfaces is particularly critical for simultaneous multi-channel recording, for example with a combination of HDMI source device, USB cam and screen recording. Without these reserves, picture dropouts or synchronization problems can quickly occur. Thanks to the well thought-out selection of components and interfaces, all three sources can even be recorded simultaneously in this system without bottlenecks occurring, even with the video buffer activated and simultaneous storage.

In the studio, I use up to two analog wireless links from Sennheiser (Evolution Wireless G4 series), which can be flexibly integrated into the system depending on the recording situation. The audio signals from these wireless microphones can either be fed in directly via the HDMI path of the Obsbot camera and thus recorded synchronously with the video signal or – in scenarios with separate signal routing – can also be fed into the system via external USB audio interfaces. This second method enables loss-free, separate audio track recording with greater control over level, dynamics and possible post-processing. By using both methods, HDMI embedding and USB audio, I can decide whether a direct live track or separate audio processing makes more sense, depending on the setup. The system remains fully synchronizable and allows clean and reliable sound integration even with more complex setups. The control monitors are connected analog via ground lift to the integrated sound solution of the mainboard.

Video encoding

This system uses the MSI GeForce RTX 5060 Gaming OC, a slightly overclocked version from the factory with a compact dual-fan cooler and a solid design, which is characterized in particular by quiet operation and good thermal properties. The card remains acoustically inconspicuous even under load and, thanks to its moderate length, fits easily into the housing layout without blocking adjacent slots or fans. The additional backplate ensures mechanical stability and even heat distribution. For use as an encoding unit in the OBS server, the MSI version of the RTX 5060 provides a stable platform with reliable driver behavior and efficient load distribution between the GPU and NVENC unit. The factory OC configuration does not provide a direct advantage in a productive environment, but it does no harm either, as the cooling is designed to keep temperatures low. This makes the card a technically inconspicuous, but functionally perfectly suited solution for a system where encoding performance, stability and noise behavior are paramount.

The GeForce RTX 5060 used in this system is often viewed critically in the gaming environment, as it only offers a limited leap in performance compared to the previous generation and is rated as unexciting in many tests. For my specific application scenario in the video studio, however, this card is exactly the right choice, as it is not about maximum gaming performance, but about stable and efficient video processing via the NVENC hardware unit.

The NVENC encoder in the RTX 5060 masters both H.264 and H.265 in very high quality and with low resource requirements. This is particularly important for longer recordings with several parallel video sources, as the GPU handles the encoding completely independently without burdening the CPU. The H.265 encoder delivers smaller file sizes than H.264 at the same quality level and supports functions such as B-frames and lookahead, which ensures clean compression, especially for high-contrast and low-motion scenes. These qualities are more relevant for me in daily studio use than any gaming performance.

I deliberately chose not to use the integrated AV1 encoder, even though it is technically available and would be more efficient in principle. The reason is simple and practical. Adobe Premiere Pro is not yet able to process AV1 without detours. If you want to use AV1, you have to resort to third-party plug-ins or additional transcoding stages, which not only slows down the workflow but also increases the susceptibility to errors. H.265, on the other hand, is compatible system-wide, can be imported immediately and can be edited, archived or further processed without conversion.

All in all, this gives me a clear picture: the RTX 5060 offers exactly the encoder functionality I need for my application. It is quiet, power-saving and can be easily integrated into the existing OBS system. The fact that it performs less spectacularly in games doesn’t matter to me. For studio use with stable hardware encoding performance and high system integrity, it is a targeted and well thought-out choice.