Best Audio Mixer Software for Streaming (2026)

VoiceMeeter is the default answer on Windows, and it has been for years, because nothing else gives away this much routing capability for nothing. The Banana edition is the version worth learning. The base VoiceMeeter is too limited once you add a second application, and Potato adds channels most streamers never touch.

The concept that makes it click is the difference between A and B buses. The A buses feed your headphones. The B buses feed virtual outputs that other software can record. Because each input strip has its own A and B assignment, you can send music to your ears without sending it to your stream, which is the single most common reason people install it. Copyright safe VODs stop being a manual chore.

Be honest about the learning curve. The interface presents hardware inputs, virtual inputs and three output buses at once, with no wizard and no defaults tuned to streaming. Expect to spend an evening with it. The payoff is that once the routing is correct it stays correct, and every application you add later slots into a system you already understand. Set the buffer to 512 samples if you hear crackling, and restart the audio engine after any change to Windows sound devices.

Before installing anything, check whether OBS alone covers you. Its built in mixer handles per source levels, filters such as noise gate and compressor, and monitoring choices. Open Advanced Audio Properties by clicking the gear icon in the Audio Mixer panel, and you get per source track assignment, which is how you place your microphone on track 1 and music on track 2 for a multitrack recording you can rebalance in editing later.

The hard limit is application separation. OBS captures desktop audio as one device, so it cannot natively split a browser from a game. Windows 10 build 2004 and later can do some of this through Application Audio Capture, which is worth trying first because it needs no extra software, though it remains less reliable than a dedicated routing layer on some systems. If per source filters and one desktop track are enough for your stream, stop here. Our OBS Studio settings guide covers the filter chain and sample rate settings in detail.

Wave Link is the friendly version of the VoiceMeeter idea. It presents nine input slots, each assignable to an application, and two independent mixes labelled Stream and Monitor. That two mix model is the whole point, and it is far easier to grasp than bus letters. It is designed around Elgato Wave microphones and interfaces, and while it will run with other hardware, the supported path is smoother.

Sonar comes with SteelSeries GG and takes a different angle again, splitting audio into Game, Chat, Media, Aux and Mic streams with a parametric EQ and game specific presets on top. It asks the least of you of any option here. The limitation is that it assumes a gaming workflow, so it is less flexible if your stream involves music production or multiple guests.

The fastest way past the learning curve is to build the routing in a fixed order and test after each step, rather than configuring everything and then debugging silence. Install VoiceMeeter Banana and restart, because the virtual audio devices it creates are not visible to other applications until Windows has reloaded its device list. Skip the restart and half the following steps will appear broken.

Set Windows to use VoiceMeeter Input as the default playback device. Everything your computer plays now arrives on the Virtual Input strip inside VoiceMeeter rather than going straight to your headphones. Then set hardware out A1 to your actual headphones or speakers, which restores your ability to hear anything. Those two steps together insert VoiceMeeter into the signal path without changing what you hear.

Next, assign your microphone to Hardware Input 1 and choose the WDM version of the device rather than the MME one, since WDM has lower latency. Set that strip to output on both A1 and B1. A1 is your headphones, so you can hear yourself. B1 is the virtual output your streaming software will record. Leave the music and game applications on the Virtual Input strip and give them B1 only if you want them in the stream, or A1 only if you want to hear them privately.

Finally, in OBS, add an Audio Input Capture source and point it at VoiceMeeter Output, which is the B1 bus. Speak, and confirm the level moves in the OBS mixer rather than only in VoiceMeeter. If the meters move in VoiceMeeter but not OBS, the source is pointed at the wrong virtual device, which is by far the most common mistake. Save the configuration as a preset once it works, because a Windows update that reorders audio devices can scramble the assignments and a saved preset restores them in one click.

There are three points where software mixing runs out. The first is inputs. If you need to plug in two or more XLR microphones for guests in the same room, no amount of routing software creates preamps. The second is physical control. Reaching for a fader mid sentence is faster than alt tabbing, and it never steals focus from a fullscreen game. The third is stability, because a hardware mixer does not crash or lose its device assignments after a Windows update.

If any of those apply, the hardware decision comes next. Start with our guide to the best audio mixers for streaming for the general case, or the best mixer for an XLR microphone if you have already chosen the mic. Console streamers should read the PS5 audio mixer guide, because console audio has routing constraints a PC does not.

The setup most established streamers end up with is not one or the other. It is an interface or small mixer handling the microphone and giving zero latency monitoring, with VoiceMeeter or Wave Link sitting behind it handling application routing. Each layer does the job it is actually good at, and neither is asked to do the other's.