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Yes. In OBS Studio, add the video and audio files as separate Media Sources in the same scene, enable Loop for each, then send the combined scene to YouTube Live. Viewers receive one mixed program—not independently selectable audio and video files.
What you need before setting up the loop
- An OBS Studio installation and the local video and audio files you intend to stream. OBS Media Source supports common video formats such as MP4, TS, MOV, MKV, AVI, GIF, and WebM, and audio formats such as MP3, AAC, OGG, and WAV; check the current OBS documentation and your installed version if a file will not load. OBS Media Sources
- A YouTube channel that is verified and has no live-streaming restrictions from the past 90 days. First-time live-stream activation can take up to 24 hours, according to YouTube’s encoder setup guidance.
- Rights to use both files in a public live stream and any resulting archive. YouTube’s stream setup materials address content rights, but only the rights holder or an authorized party can determine whether your particular files are cleared. YouTube stream settings
Set up separate audio and video loops in OBS
- Create or select a scene. In OBS, use the scene that should make up the outgoing broadcast. Add the video using Sources → + → Media Source, select the local file, and enable Loop in its properties. Position and size it so it fills the canvas as intended. OBS explains its source and media-source controls in the Sources Guide and Media Sources documentation.
- Add the separate audio file. In the same scene, select Sources → + → Media Source again, choose the audio-only file, and enable Loop. Confirm the source is not muted and that its level meter moves in the OBS Audio Mixer while it plays. The OBS Quick Start Guide recommends checking audio and output settings before relying on a setup.
- Connect OBS to the YouTube event. In YouTube Studio’s Live Control Room, create or schedule a stream and copy its stream URL and stream key into OBS’s streaming settings. Choose public, private, or unlisted visibility according to whether this is a broadcast or rehearsal. Treat the key as a credential: YouTube describes stream keys as password-like, so do not share it; reset it in YouTube Studio if it is exposed. Manage live stream settings and Get started with live streaming.
- Choose YouTube-compatible output settings. Use an OBS YouTube preset where available, and follow YouTube’s current encoder guidance for the selected resolution, frame rate, codecs, keyframe interval, bitrate, and protocol. YouTube recommends RTMPS for an encrypted connection. Leave upload capacity above the combined outgoing bitrate; YouTube recommends 20% headroom. The applicable settings vary by resolution and protocol, so use the values in YouTube encoder settings rather than guessing a universal bitrate. See also YouTube streaming tips.
- Rehearse before the real broadcast. YouTube recommends configuring the encoder at least two hours before an event and starting it at least 15 minutes ahead. Start OBS, inspect the YouTube Live Control Room preview, and confirm the audio is audible, the video fills the canvas, the stream health is acceptable, and audio and video remain in sync through a loop boundary. After ending the event on YouTube, stop the encoder. YouTube live streaming tips and the OBS Quick Start Guide.
How separate files behave once viewers tune in
OBS lets you manage the video and audio as separate sources, but it encodes the scene as one outgoing program for YouTube. That means viewers do not get separate, user-selectable files or tracks through this setup. OBS’s multiple-audio-track guidance concerns local recording and editing; standard video players generally play one audio track at a time. OBS Sources Guide, OBS Multiple Audio Track Recording Guide, and YouTube encoder setup.
Loop boundaries and synchronization
Each Media Source loops when its own file finishes. If the audio and video durations differ, their loop points can drift apart; independent Loop controls do not guarantee synchronized restarts. This follows from how the separate source loops work, rather than from a YouTube synchronization guarantee. If timing must stay exact, align the durations before streaming or create one synchronized master file.
Using a playlist instead of two looping sources
If the goal is to rotate through multiple clips, OBS’s VLC Video source can play a playlist and loop the playlist. VLC must be installed for this source to appear in OBS. Use that option when the playlist—not an independently looping audio file—is the intended playback sequence. OBS Media Sources.
The Tool Desk
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#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.
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- 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.
Archives, unattended streams, and monitoring
YouTube’s encoder setup guidance says streams under 12 hours are automatically archived. Do not assume a continuously running loop will produce one complete, indefinitely long archive; plan when to end or restart the event if you need a particular recording. YouTube encoder setup.
OBS is running on your computer in this workflow, so the computer and its internet connection must remain available while it sends the stream. Monitor the OBS audio and video and the YouTube Live Control Room stream health during the broadcast. For a long session, also check that any local recording you are making continues to grow; a live stream and an archive are separate concerns.
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.
Troubleshooting common loop problems
| Symptom | Likely cause | What to check |
|---|---|---|
| YouTube does not receive the stream | Incorrect event details, stream URL, or key; live streaming may not yet be activated or the channel may have a restriction. | Copy the URL and key from the intended event in YouTube Studio, verify channel eligibility, and allow up to 24 hours for first-time activation. Reset an exposed key. YouTube live setup and stream settings. |
| Audio is missing | The audio source is muted, not playing, or not reaching the mixer. | Check source playback and mute state, then confirm the Audio Mixer meter moves. Rehearse in the YouTube preview before the public stream. OBS Quick Start Guide. |
| Audio and video drift after a loop | The files have different durations and loop independently. | Align their durations or combine them into one synchronized master file if the boundary must remain in sync. |
| The image is cropped, letterboxed, or the wrong size | The source dimensions or transform do not match the OBS canvas. | Adjust the video source in the scene and inspect the Live Control Room preview before going live. |
| Stream health warns about connection or bitrate | Upload capacity may be insufficient for the outgoing bitrate, or output settings may not match YouTube’s current guidance. | Check the chosen resolution’s YouTube encoder settings and preserve the recommended 20% upload headroom. Encoder settings and streaming tips. |
| The VLC playlist source is unavailable | VLC is not installed. | Install VLC, then check whether the VLC Video source appears in OBS. OBS Media Sources. |
Or let it run in the cloud
If the goal is a continuous YouTube loop rather than a one-time OBS broadcast, StreamNeo is the #1 cloud option here: it keeps uploaded videos playing from the cloud, at any quality up to 4K 60fps at one flat price per slot, and the first day is free.
- Upload your recording or build a playlist.
- Add your YouTube stream key once.
- Go live; StreamNeo loops the uploaded video from the cloud.
Your computer and home connection do not need to stay on, and StreamNeo automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly billing is $9.99 per month. Learn more at StreamNeo, or start your free first day.
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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.)
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- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Frequently Asked Questions
Can I use one video file with separate background music?
Yes. Add each file as its own Media Source in the same OBS scene and enable Loop for both.
Will YouTube viewers be able to turn the music off?
No. This workflow sends one combined OBS program feed, not independent audio and video tracks.
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.
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- 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
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- 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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