For a YouTube Live stream built around a prerecorded video, set OBS’s output frame rate to the video’s actual frame rate when practical. In OBS, open Settings > Video > Common FPS Value. Matching is a sensible way to preserve the source’s cadence—not a special YouTube Live requirement. YouTube’s separate upload guidance recommends keeping the rate at which content was recorded, while its live guidance permits up to 60 fps.
What FPS should OBS use for a prerecorded video?
Check the file’s actual frame rate in its media information or editing/export workflow, then use that rate as your starting point. Common rates include 24, 25, 30, 48, 50, and 60 fps. YouTube’s advice to keep the recorded rate is specifically for uploaded content; applying it to an OBS media source during a live stream is a practical inference, not an explicit live-stream rule. YouTube’s upload encoding guidance makes that distinction important.
Do not infer frame rate from resolution, and do not raise a 24, 25, or 30 fps source to 60 simply because YouTube supports 60 fps. A higher output rate does not create motion detail that is absent from the source.
Set the frame rate in OBS
- Check the source. Find the prerecorded file’s frame rate using its media information or the editing/export workflow that produced it.
- Open OBS’s video settings. Go to Settings > Video, then choose the source rate under Common FPS Value, if that exact value is available. OBS says this setting should match the desired output FPS. See the OBS Studio overview.
- Choose resolution separately. Keep the output resolution appropriate for the video and broadcast. OBS distinguishes Base (Canvas) Resolution from Output (Scaled) Resolution; changing either resolution is not the same as changing FPS.
- Test the actual program. Run a private, unlisted, or otherwise safe test using the same clip, audio, transitions, and motion expected in the event. Check for judder, dropped frames, audio-sync problems, and YouTube stream-health warnings.
- Adjust only if the test calls for it. If 60 fps is unstable, try 30 fps. For a playlist with mixed frame rates, choose the rate that best serves the dominant or most important material, then test transitions between clips; official guidance does not establish one universally correct setting for mixed-rate playlists.
OBS’s encoding performance troubleshooting guide recommends trying 30 fps when 60 fps does not work. Fewer frames can reduce rendering and encoding work, but converting a 60 fps source to 30 fps changes its cadence. Test representative motion before settling on the lower rate.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Should OBS be 30 or 60 fps for YouTube Live?
YouTube’s live encoder guidance supports frame rates up to 60 fps. That is a ceiling, not a recommendation to use 60 fps for every stream. Make the choice based on the source’s cadence, the motion viewers should see, OBS stability on the computer, and the upload capacity available for the selected resolution and codec.
| Output choice | When it fits | Trade-off |
|---|---|---|
| Match the source rate | The source rate is available in OBS and the system handles it reliably. | Preserves the source cadence without choosing a higher output rate without a reason. |
| 30 fps | 60 fps causes instability, or the material is primarily 30 fps or lower. | Can ease rendering and encoding load, but reduces cadence from a 60 fps source. |
| 60 fps | The source’s motion benefits from it and the computer and upload connection sustain the stream. | Can be more demanding; the bitrate recommendation also differs from 30 fps. |
YouTube recommends testing before an event with similar movement and audio, then monitoring stream health and messages during the broadcast. Its live encoder settings page lists the following ingest bitrate examples. Values are YouTube recommendations shown on the page accessed October 3, 2026—not guarantees of picture quality or a substitute for checking available upload capacity and live stream health. Check YouTube’s current live encoder settings before going live.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
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- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
| Resolution and rate | Codec | Minimum bitrate | Recommended bitrate |
|---|---|---|---|
| 1080p30 | H.264 | 5 Mbps | 14 Mbps |
| 1080p60 | H.264 | 6 Mbps | 17 Mbps |
| 1080p30 | AV1 or H.265 | 4 Mbps | 10 Mbps |
| 1080p60 | AV1 or H.265 | 4 Mbps | 12 Mbps |
Keyframes, bitrate mode, and codecs
Frame rate is only one part of the live output configuration. YouTube’s current encoder guidance recommends a 2-second keyframe frequency, not more than 4 seconds, and CBR bitrate encoding for RTMP/RTMPS. It lists H.264, H.265/HEVC, and AV1 among supported video codecs, and says YouTube automatically detects encoder settings and transcodes the stream for viewers. Check the live encoder settings page for the current recommendations that apply to your chosen resolution, frame rate, and codec.
Common problems and what to check
- The picture judders. Confirm the OBS output rate and source rate. A mismatch may change cadence; test the intended output rate with a section containing representative motion.
- OBS cannot keep up at 60 fps. Try 30 fps as OBS recommends, then test again. Lowering FPS may ease system work, but it changes the cadence of 60 fps material.
- YouTube reports poor stream health. Check the selected resolution, FPS, codec, and bitrate against YouTube’s current recommendations; verify that the upload connection can sustain the bitrate and monitor YouTube’s stream-health messages.
- Audio and video do not stay in sync. Test with the same audio and media source planned for the event, and check for sync issues during the full test rather than only at the start.
- A playlist switches between different rates. Test the actual transitions and choose an output rate based on the material viewers will see most. There is no universal official OBS setting established for mixed-rate playlists.
Or let it run in the cloud
If your goal is to keep prerecorded videos looping on YouTube Live, StreamNeo is a cloud alternative to leaving OBS and a computer running at home. Upload a recording or build a playlist, add your YouTube stream key once, and go live. StreamNeo loops uploaded videos in the cloud; it does not go live from a camera.
Recommended Free Tools
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
- Nothing has to stay on at home once the stream is running.
- Your video streams as uploaded, up to 4K 60fps, at one flat price per slot.
- Automatic recovery starts if YouTube drops the stream.
- The first day is free, with no card required.
Monthly service is $9.99 per month. Learn more at StreamNeo, or start your free day.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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