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To repeat a recorded lecture during a YouTube Live broadcast, loop the video in streaming software such as OBS Studio and send that feed to YouTube using the stream URL and stream key. YouTube’s viewer-side Loop button only repeats playback for an individual viewer; it does not turn a recording into a live broadcast.
How lecture looping works on YouTube Live
YouTube Live needs an encoder to send video to the platform. YouTube describes an encoder as a tool that converts video into a digital format for streaming. In this setup, OBS loops the lecture file and sends the repeating feed to YouTube. The live stream is what viewers watch; their player’s Loop control does not create or control that broadcast.
What to prepare
- A YouTube channel cleared to live stream. First-time activation can take up to 24 hours, according to YouTube’s live-streaming setup guidance; enable it well before the lecture is due to air.
- OBS Studio installed on a computer that can remain on and connected while streaming.
- The lecture video saved locally, or VLC installed if you plan to use OBS’s VLC Video source for a playlist.
- The stream URL and stream key from YouTube Studio’s Live Control Room.
- Permission to rebroadcast the recording and all its contents, including slides, clips, music, and contributions from other people.
Set up a single lecture to repeat in OBS
- Enable live streaming. In YouTube Studio, confirm the channel can stream. If this is the channel’s first live stream, allow time for activation, which may take up to 24 hours.
- Create or schedule the broadcast. Open YouTube Studio’s Live Control Room and create a stream or schedule it. Use the settings appropriate to your event and audience.
- Add the lecture in OBS. Create a scene, add a Media Source, and select the local lecture file. OBS documentation lists formats including MP4, MOV, MKV, AVI, and WebM.
- Enable looping. In the Media Source properties, turn on Loop. OBS will restart the file when playback finishes. If the source’s other playback settings are visible, verify them for your intended behavior before the test.
- Connect OBS to YouTube. In YouTube Studio’s stream settings, copy the stream URL and stream key into OBS’s stream settings. Treat the stream key like a password: do not publish or share it, and reset it if it is exposed.
- Start the encoder output. Start streaming in OBS. YouTube creates the watch page and receives the feed when content is being sent. For a scheduled broadcast, wait for the preview in Live Control Room and use its Go live control when the selected settings require it.
- Preview before inviting viewers. Check the picture, audio, stream health, watch-page access, and access on a phone. YouTube recommends testing and monitoring the stream; a short private or unlisted test is a practical way to do that before a public event.
- End the broadcast cleanly. End the stream in YouTube Studio and stop OBS’s output. YouTube says streams under 12 hours are automatically archived; do not assume that statement guarantees how a longer stream will be handled.
Loop a playlist of lectures instead
For a sequence of recordings, add OBS’s VLC Video source and enable Loop Playlist. OBS requires VLC to be installed for this source to appear. Check the playlist order and each file’s audio and picture in a test before using it for an event. A playlist lets the lectures play in sequence; it does not remove the need to send the encoder feed to YouTube.
Choose between a computer and a hardware encoder
| Approach | When it fits | Important qualification |
|---|---|---|
| OBS Studio on a computer | Useful when you have a computer available and want to loop a local file or playlist, or manage scenes. | The computer and connection need to remain available while OBS sends the stream. OBS documents Media Source looping and VLC Video playlist looping. |
| AJA HELO Plus | YouTube lists this hardware encoder and describes PlayToStream functionality for scheduling prerecorded media directly to YouTube Live without a computer. | The cited YouTube page does not confirm indefinite repeat behavior, so do not assume it will loop lectures continuously. |
YouTube’s encoder guidance describes the encoder workflow and names hardware options at its encoder help page. Choose a device based on the specific playback features it documents, rather than assuming every prerecorded-media encoder can loop indefinitely.
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Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- 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.
Copyright and access checks
You are responsible for having the rights needed to use the live content on Google’s services, including applicable music licensing rights. A lecture may contain material beyond the lecturer’s own narration: check permission for embedded music, video clips, images, slides, and guest contributions before rebroadcasting. YouTube’s live-stream terms set out this responsibility in the platform terms.
- Confirm that the recording may be rebroadcast to your intended audience and territory.
- Check whether third-party clips, music, or other material have separate licensing requirements.
- Make sure the watch page is accessible to the intended viewers, including on mobile, during the test.
Troubleshoot common problems
| Symptom | Likely cause | What to check |
|---|---|---|
| The lecture plays locally, but no live feed reaches YouTube. | OBS is not sending output, or the stream URL or key is missing or incorrect. | Check the stream settings in OBS against YouTube Studio, then start the encoder output and confirm that Live Control Room receives a preview. |
| The lecture ends and does not restart. | The Media Source’s Loop setting is off, or the wrong source type is being used. | Open the Media Source properties and enable Loop. For a playlist, use VLC Video and enable Loop Playlist. |
| VLC Video is unavailable in OBS. | VLC is not installed. | Install VLC, then check whether VLC Video is available as a source in OBS. |
| Viewers can’t access the watch page. | The stream’s access settings or broadcast setup may not match the intended audience. | Check the stream’s visibility and test the watch page from a viewer’s device before the event. |
| Audio, picture, or stream health is wrong. | A source, file, or stream setting may not behave as expected. | Preview the feed in Live Control Room, inspect the lecture’s sound and image, and monitor stream quality during a test. |
| The first live stream is not available yet. | Channel activation may still be processing. | Enable live streaming ahead of time; first-time activation can take up to 24 hours. |
Or let it run in the cloud
If you do not want a computer and home connection to remain on, StreamNeo can keep an uploaded recording or playlist looping as a YouTube Live stream from the cloud. The steps are upload the video, add your YouTube stream key once, and go live. It supports uploaded video up to 4K 60fps as provided, at one flat price per slot, with automatic recovery if YouTube drops the stream. The first day is free with no card required; the monthly option is $9.99 per month. See StreamNeo or its pricing page. Start the free first day on StreamNeo.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 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
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- 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
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- 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.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 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.
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