The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →To play a prerecorded video as a YouTube Live broadcast with an NVIDIA GPU, add the video to an OBS Studio scene as a Media Source, connect OBS to the YouTube event with its stream key, and send the feed using a supported NVENC encoder. Set the output to YouTube’s recommended ingest settings, then check YouTube Studio to confirm the event—not just the OBS connection—is live. You do not need to buy a new GPU if your current card already offers a compatible encoder.
Before you start: prepare the YouTube event and OBS
- Verify that live streaming is available for your YouTube account, then create or schedule the broadcast in YouTube Studio. Keep its Live Control Room open for the preview and stream-health status.
- In OBS, select the YouTube service and connect it using the account flow or the stream key for the event. Treat the key like a password: NVIDIA warns that anyone who has it can take over the stream. Do not include it in screenshots, posts, or shared files. NVIDIA’s NVENC OBS Guide
- For a scheduled broadcast, check the event’s current auto-start and auto-stop controls. The OBS community guide describes these as separate controls, but its page was last updated in 2021, so labels and behavior may have changed. OBS sending video does not necessarily mean the audience can already see a live event. OBS community guide to a first YouTube stream
Add the prerecorded video as an OBS Media Source
- In OBS, choose or create a scene for the broadcast.
- In the scene’s Sources dock, select + and add Media Source.
- Enable Local File and choose the recording. OBS lists video formats including MP4, TS, MOV, FLV, MKV, AVI, GIF, and WebM, as well as common audio formats. OBS Media Sources
- Enable Loop if you want playback to start again when the file ends. Loop is off by default. Restart playback when source becomes active is enabled by default, which helps when you activate the source after the event is ready.
- Use Use hardware decoding when available only as a source-playback option if appropriate for your setup. It is separate from selecting NVIDIA NVENC as the encoder for the outgoing live stream.
Choose NVENC and a YouTube-compatible output
Check your GPU and available codecs
OBS documents NVENC support on Windows and Linux starting with GeForce 750 Ti, 900-series Maxwell, or newer cards; it recommends Turing-generation NVENC for best results and advises keeping GPU drivers current. The encoder and codec options shown in OBS depend on your GPU generation, driver, and installed OBS version. An existing compatible card may be sufficient for prerecorded playback; an upgrade is not automatically necessary. OBS NVENC encoder guide
NVIDIA’s guide dated January 30, 2025 lists H.264 and HEVC for RTX 20- and 30-series cards, and H.264, HEVC, and AV1 for RTX 40- and 50-series cards. It recommends AV1 for YouTube on RTX 40-series hardware and HEVC otherwise. YouTube’s encoder guidance lists H.264, HEVC, and AV1 as supported input codecs. Confirm that your installed OBS exposes the codec you intend to use before configuring the stream. NVIDIA NVENC OBS Guide · YouTube live encoder settings
Match bitrate, frame rate, and resolution
In OBS output settings, use constant bitrate (CBR), set the keyframe interval to two seconds, and do not exceed four seconds. Use AAC or MP3 audio; YouTube recommends 128 Kbps for stereo AAC. Select the bitrate from YouTube’s current table for the chosen codec, resolution, and frame rate rather than treating one bitrate as right for every stream. YouTube transcodes live input for viewers, so set the outgoing feed to the resolution and frame rate you actually need. YouTube live encoder settings
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitches#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.
Check that your measured upload connection can sustain the selected bitrate throughout the broadcast. NVIDIA advises planning around 75% of measured upload speed to leave capacity for other applications; this is vendor guidance, not a YouTube requirement. NVIDIA NVENC OBS Guide
Use RTMPS
YouTube recommends RTMPS, which carries RTMP through an SSL connection. Google’s developer documentation specifies the RTMPS protocol, a valid YouTube endpoint and application path, and port 443. OBS normally configures the service and endpoint for you; this detail matters chiefly if you are troubleshooting a custom encoder or connection error. Google RTMPS ingestion documentation
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.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Start the broadcast and verify playback
- Before the event, test with a representative part of the video, including its most demanding motion and audio. Confirm that the picture fits the canvas and that both video and sound play in OBS.
- When it is time to broadcast, start the OBS stream. Watch the YouTube Live Control Room preview and stream-health messages while OBS connects and sends data.
- For a scheduled event, confirm whether YouTube requires a separate Go Live action, based on the event’s current auto-start setting. Do not assume a successful OBS connection has made the event public.
- Confirm that the event is actually live and that the intended scene, video, and audio are reaching YouTube. If the video must begin only once the event is live, use an intro or holding scene first, then activate the Media Source. Avoid letting the file play through before the event goes live unless you have confirmed how the source will restart.
Troubleshoot common failures
| Symptom | Likely cause | What to check or change |
|---|---|---|
| OBS says it is streaming, but viewers cannot see the event | The scheduled YouTube event may still need a separate Go Live action, or the event is not ready. | Check the event and auto-start controls in Live Control Room; verify the public event status and preview. |
| The event is live, but the video is black or has ended | The source may be inactive, the file may not have loaded, or playback finished before the event went live. | Check the Media Source file and scene visibility. Activate the source when ready; enable Loop for continuous playback or restart the source. |
| OBS cannot connect or YouTube reports no incoming stream | The service, endpoint, stream key, or network path may be incorrect. | Recheck the selected YouTube service and key without exposing it. If using a custom encoder, verify the RTMPS endpoint, application path, and port 443 requirements. |
| Stream health reports dropped frames or unstable delivery | The upload connection may not sustain the configured bitrate, or competing network use may be consuming capacity. | Compare the chosen bitrate with YouTube’s table and measured upload capacity; reduce the output bitrate or resolve network congestion, then check health again. |
| NVENC or a codec choice is missing | The GPU generation, driver, operating system, or OBS version may not expose that encoder option. | Update the GPU driver, check OBS’s current NVENC compatibility documentation, and use a codec shown in your installed OBS and supported by YouTube. |
| Video plays but audio is missing or unsuitable | The source audio may be muted, routed incorrectly, or encoded with an unsuitable output setting. | Check OBS audio meters and source routing, then use AAC or MP3 and follow YouTube’s audio guidance. |
Copyright and channel-policy checks
A prerecorded video does not avoid YouTube’s copyright or channel rules merely because it is sent as a live stream. Before broadcasting, confirm you have the necessary rights to the footage, music, images, and other included material, and review the current YouTube rules that apply to your channel and content. Replaying material also does not by itself establish that a channel meets YouTube monetization or reused-content requirements; eligibility depends on YouTube’s current policies and the channel’s content as a whole. Consult YouTube’s current live streaming guidance and channel monetization policies.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or let it run in the cloud
If you want a prerecorded YouTube stream to keep running without leaving a home computer on, StreamNeo offers a cloud-based alternative. Upload your recording or build a playlist, add your YouTube stream key once, and go live. It loops uploaded videos; it does not broadcast a camera feed.
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: the stream runs from the cloud, not your computer, OBS, or home connection.
- Each slot streams the uploaded quality up to 4K 60fps at one flat price per slot, with no re-encode or quality tiers.
- Automatic recovery is included if YouTube drops the stream.
- The first day is free with no card required; one free day is available per account.
- Monthly: $9.99 per month.
See StreamNeo for plan details, or start your free first 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
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
