October DealsAmazon USOctober deal check: compare before you payAmazon US: current deals, useful picks and tech finds.Check DealsWindows FixRecommendedWindows errors stealing your time? Find the fix fastScan stability, cleanup and performance issues.Fix NowOctober DealsAmazon USDeal season is back - check today's better picksAmazon US: current deals, useful picks and tech finds.See Picks×
Skip to content
Mountain View desk5 min

How to Stream Multiple Audio Sources on YouTube

Combine multiple audio sources for a YouTube live stream with an encoder or optional mixer, then preview and monitor the mix before and during your broadcast.
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

To stream multiple audio sources on YouTube, combine them in a streaming encoder on your computer, or feed them through a compatible audio mixer or interface first. YouTube’s encoder workflow is the documented option for advanced productions using external audio hardware. Configure and balance the inputs before going live, then check the Live Control Room preview and monitor the broadcast.

Decide what needs to be heard

List the audio you want viewers to hear: for example, your microphone, computer or game audio, playback you have permission to use, or a remote guest returned by conferencing software. These may be separate physical devices or audio feeds from software. The controls available to combine them depend on your encoder, operating system, and connected equipment.

As an Amazon Associate I earn from qualifying purchases.

YouTube distinguishes mobile, webcam, and encoder streaming. Its encoder guidance covers external audio hardware and advanced productions, making an encoder the practical starting point when you need to combine inputs. A mobile or webcam setup may suit a simpler broadcast, but its ability to route several independent sources depends on the app and device.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Choose software routing or audio hardware

Use the encoder for a simple mix

If you need a microphone and computer audio, first check whether your encoder and operating system can capture both. Route or select each source using the controls supported by that software. Do not assume every encoder has a control with the same name, or that every operating system exposes the same audio routing options.

#1 Best Overall
Sale
FIFINE Ampligame SC3 Gaming Audio Mixer with Indi-Fader and Volume Control
  • [XLR Mic Input] One XLR microphone input interface is set on the gaming audio mixer, which is great to up your audio quality with your XLR setup. The XLR mixer is a stepping stone to upgrade your live streaming. Audio mixer offered built-in 48V phantom power which opens up more choices for mics. Directly use it with your condenser microphone but do not solve added peripherals. (NOT available for USB mic)
  • [Individual Channel Control] Gaming audio mixer for one mic recording with smooth volume slider fader take your streaming recording to a whole new level with full pleasure. Four independent channels set on the DJ mixer give audio volume of the MICROPHONE, LINE IN, HEADPHONE, and LINE OUT channels individual control. Configurable on the PC audio mixer instead of just operating on your game or streaming software.
  • [Mute and Monitor] The front mute and monitor buttons but not at the back, make it easier to get the audio interface use. Ability to mute audio, the audio mixer for streaming prevents background noise from damaging your live broadcast. Real-time feedback between speaking and hearing will not distract your attention, which encourage you to speak more confidently. The sturdy-built control button allow you to operate freely and easily during live streaming.
  • [Sound Effects] The computer sound mixer supports four pre-recorded customized button that can be recorded and activated at the press of button to post production. 6 kinds of voice changing modes change your output style. 12 auto tune changes the tone of your voice. The podcast mixer being able to add different and fun effects is a huge bonus for your streaming or game voice.
  • [Controllable Vibrant RGB] RGB button on the audio mixer DJ meets different live streaming themes. Lights on the video mixer is vibrant but not harsh on your eyes. Flowing or frozen RGB color rotation in a decent pace presents a greatly strong impression as a "light show" to your audience. Even a streaming equipment accessory will not be dull looking when video production.

Add a mixer or interface when you need more control

A mixer or audio interface can be useful when you have several microphones or want hands-on control over individual inputs. YouTube lists mixers and multiple microphones as examples for advanced setups; that does not mean every creator needs extra hardware. Check that your sources connect to the device and that its output can be used by your computer and encoder.

Start with equipment you already have. YouTube says creators do not need expensive equipment to begin streaming; add hardware to address a specific input, connection, or live-control need rather than buying it by default.

Rank #2
Sale
FIFINE SC8 Gaming Audio Mixer for Live Streaming with 7.1ch Surround sound
  • Upgrade Mic Clarity with XLR Power-Unlock studio-quality voice capture: The 48V phantom power XLR port supports high-sensitivity mics up to -50dB gain, while the Dynamic/Condenser toggle adapts to any microphone type. With <0.2% distortion and 75dB SNR, your comms cut through explosions crisply. Adjust mic monitoring via output knob on the gaming mixer keeping you aware of voice levels—perfect for intense FPS callouts.
  • Seamless Multi-Platform Audio Control-Command all your gear: Optical AUX connects PS4/TV, 3.5mm AUX-In mixes commentary audio, and USB-C PnP works instantly across PC/PS5/Switch/mobile. The 3 smart knobs include push-mute volume controls—adjust mic, game, or background audio without tabbing out.
  • Game/Chat Balance Dial & 7.1 Immersion-Dominate squad coordination: Twist the dedicated Game/Chat knob to prioritize enemy footsteps or teammate comms. Coupled with virtual 7.1 surround and 3 EQ presets (Game/Music/Movie), hear Valorant spike defuses from any directions while Discord chats stay crystal-clear.
  • 8-Voice Changer & Customizable Sound Profiles-Troll with tactical flair: One-tap voice morphing (Demon/Robot/Megaphone etc.) spices up Among Us lobbies. 4 customizable buttons save audio pieces—store your Warzone gunshot with EQ tweaked or chatting stream presets for instant reply.
  • RGB-Infused Streaming Ready Hub-Broadcast in style: Synchronized RGB lighting reacts to audio peaks for visual flair. Drive 32Ω headphones with 93dB SNR fidelity, while the aux chain lets you overlay music onto streams. Everything stays cool during 8-hour Fortnite marathons.

Connect and balance the sources

  1. Connect physical sources. Plug microphones and other audio devices into the intended computer, mixer, or interface inputs. For software sources, use the routing options supported by your operating system and encoder.
  2. Select the intended inputs. In the encoder, choose the devices or routed feeds you want included. Exact menus and controls vary by encoder and operating system, so follow the current documentation for your specific setup.
  3. Set and check levels. Make speech easy to understand and keep other sources from overpowering it. Listen to a test recording or a private or unlisted preview, if available, and check for missing, muted, or distorted audio. There is no universal gain value for every microphone and room.
  4. Check the combined mix. Listen to the output viewers will receive, not only to each source in isolation. Confirm that the intended sources are present and that muting or changing a source has the expected effect.

Preview, go live, and monitor

  1. Open YouTube Live Control Room for the scheduled or newly created stream and connect your encoder using the stream settings provided there.
  2. Check the preview before starting. YouTube recommends checking the Live Control Room preview before you start the public broadcast. Confirm that the picture and every intended audio source are present.
  3. Start the broadcast and keep monitoring. YouTube recommends continuously monitoring audio and video quality during the stream. If a source disappears or becomes too loud, correct it at the encoder or mixer and verify the resulting mix.

Leave upload capacity beyond the encoder’s total stream bitrate. YouTube Help recommends 20% of headroom: the total bitrate must not exceed available upload bandwidth, and the extra room is a recommendation, not a guarantee against interruptions. The usable upload capacity can vary, so check the connection under conditions similar to the live broadcast.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Protect the stream key

Your stream key lets the encoder send its feed to YouTube, so treat it as private access information. Do not publish or share it. If it is compromised, a channel owner or manager can reset the key in Live Control Room and then update the encoder with the replacement.

Rank #3
Sale
PUPGSIS Gaming Audio Mixer for PC Streaming, Soundboard with Voice Changer
  • This sound card is not compatible with 48V dynamic microphones or USB microphones. It only supports XLR microphones. (Note: Connecting an XLR microphone requires a 1/4" TRS to XLR cable, which is available as part of a promotional offer and must be added separately.)
  • All-in-One Audio Interface for Streaming – This mixer works as a complete audio hub for live streaming, podcasting, and gaming. It features a 1/4" TRS dynamic microphone input, built-in reverb, 4 custom sound effects pads, and a voice changer, so you can enhance your voice and engage your audience with creative audio in real time.
  • Effective Noise Cancellation – Equipped with advanced noise reduction technology, the PUPGSIS mixer filters out background hum, fan noise, and other unwanted sounds. Your viewers will hear only your clear, professional voice – ideal for noisy gaming rooms or home studios.
  • Customizable Sound Effects & Voice Changer – Personalize your stream with 4 programmable sound effect buttons. Load your own audio clips (laugh tracks, claps, alarms, etc.) and activate them instantly. The built‑in voice changer lets you alter your pitch for fun character voices or anonymous commentary.
  • Adjustable Reverb for Professional Vocals – The mixer features a fully adjustable reverb effect, allowing you to dial in exactly the right amount of room ambience for your voice. Whether you want a subtle studio echo or a dramatic live‑stage sound, the dedicated reverb control lets you fine‑tune it on the fly – no software needed.

Use HLS audio settings only for an HLS stream

YouTube’s HLS guidance recommends 44.1 kHz for stereo audio and 48 kHz for 5.1 surround, and lists AAC, AC3, and EAC3 as supported audio codecs. These recommendations are specific to HLS ingestion; they are not a reason to change settings on every YouTube stream. Follow the current HLS preset and settings for your encoder. YouTube names OBS among encoders that support HLS output.

YouTube’s 5.1 guidance supports mono, stereo, and 5.1 channel layouts; other configurations may convert unreliably to stereo. This concerns multichannel surround output, which is different from combining several independent microphones or software sources into a stereo mix.

Rank #4
Sale
FIFINE Ampligame SC3W Gaming Audio Mixer with Indi-Fader and Volume Control
  • [4-Channel Design] Featured four individual control channels, the gaming mixer can be individually adjusted different devices. You will gain a improved using experience via push the volume fader.
  • [XLR Microphone Interface] Supporting XLR microphone input, the mixer improve audio performance of your microphone. Built-in 48V phantom power, the streaming mixer do not need the additional power to your condenser microphone.
  • [All-In-One Function] With the basic usage functions, including mute button, volume adjustment and real-time monitoring, the podcast mixer gives you an quick attention on using the mixer inter to solve the problem of audio adjustment.
  • [Easy and Use] The back of the gaming audio interface is set up multiple audio port. You set up dual PCs for live streaming or plug in different audio devices for audio mixing. Multiple selections meet your needs in different scenarios.
  • [Entertainment Uses] Brilliant cool RGB lighting promotes gaming atmosphere when in live gaming or game voice. Voice change, customized sound button, or electronic button add up interaction between you and your audience during live entertainment streaming.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Troubleshoot common audio problems

  • A source is missing: Check that it is connected or routed, selected in the encoder, and not muted. Confirm the encoder is receiving the intended device or software feed.
  • One source overwhelms the others: Lower that source at the encoder, mixer, or interface, then listen to the combined mix again.
  • Audio is distorted: Reduce the affected input level and check the signal at each point in the chain, including the source device and mixer or interface.
  • The preview is silent or differs from your local monitoring: Check the encoder’s selected output and inputs, then verify the Live Control Room preview before starting the broadcast.
  • The stream drops or struggles: Compare total stream bitrate with available upload bandwidth and preserve YouTube’s recommended 20% headroom. This recommendation does not guarantee uninterrupted service.
  • The encoder can no longer connect: Check that it is using the current stream key. If the key may have been exposed, reset it in Live Control Room and replace it in the encoder.

Or let it run in the cloud

If your goal is a continuous YouTube stream of uploaded recordings rather than a live mix of microphones, guests, or computer audio, StreamNeo is a different workflow: upload a recording or build a playlist, add your YouTube stream key, and go live. It loops uploaded videos from the cloud, so nothing has to stay on at home. Each slot streams your upload as made, up to 4K 60fps, at one price per slot; it also has automatic recovery if YouTube drops the stream. The first day is free with no card. Monthly: $9.99 per month. Start your free day with StreamNeo.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Quick Recap

Best Value
Behringer XENYX 802S Premium Analog 8-Input Mixer with USB Streaming Interface
  • Analog mixing and equalization for pure sound
  • Direct mixing of PC/gaming sounds into the streaming output
  • Ultra-low noise analog mixer for streaming, podcasting and recording
  • Stereo USB audio interface to connect your computer or mobile device

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.

Leave a Reply

Your email address will not be published. Required fields are marked *

Free tools Windows power users keep installed

One-click scans. No signup required.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More from the Wire

  1. World desk4 min
    How to Spot an AI Voice Scam Before Sending MoneyDon’t rely on how a caller sounds. Pause, call back through a known number, and verify the emergency with another trusted person before sending money.
  2. Mountain View desk4 min
    Google’s SynthID Detector: How to Check AI-Generated Images, Video and AudioGoogle’s SynthID Detector looks for an embedded watermark in supported images, video and audio. Here is what its results do—and do not—show.
  3. Redmond desk20 min
    How to create a link to File or Folder in Windows 11Windows 11 gives you several ways to point to a file or folder without moving or duplicating it. You can create a desktop shortcut,…
Recommended PC Tool
Recommended PC Tool
Crashes, No Sound, or Screen Glitches?Free driver scan
PC Slower Than It Used to Be?Free scan - under a minute

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.