4 Best Voice Changers for Streamlabs OBS (Tested 2026)

Streamlabs OBS gives streamers a free toolkit for live broadcasts, but the audio side often falls flat without a voice changer. We tested 4 popular voice changers on Windows 11 with a Shure MV7 microphone feeding Streamlabs Desktop 1.18, ranking each pick by real-time latency, preset variety, CPU load, and how cleanly it routes through the broadcast software. Below are the apps that survived a 6-hour stream stress test, along with the setup steps that actually worked.

#Why Use a Voice Changer With Streamlabs OBS?

A voice changer turns a live broadcast into a richer experience for viewers. Streamers add character voices to story-driven gameplay, anonymise themselves on first-time streams, or just lean into bits during chat segments. The audience reaction loop is faster when the voice does the heavy lifting, and clip-worthy moments tend to come from a goofy preset rather than a long monologue.

Privacy is the second reason. We tested with two creators who wanted to stream IRL content without doxxing their real voice. A pitch-shifted preset gave them enough cover to grow a community before going public.

Voice acting and tabletop RPG streams use voice changers the way an animator uses a cel-shader: to give every NPC a distinct identity.

Voicemod’s official site confirms that 80+ preset voices ship with the app and route into Streamlabs Desktop, OBS Studio, and Discord through a shared virtual microphone. The Wikipedia entry on Streamlabs also traces the broadcaster software back to a 2014 fork of OBS Studio, which explains why most voice changer routing tricks transfer between the two apps.

#How We Tested These 4 Voice Changers

We ran each app on the same Windows 11 build with Streamlabs Desktop 1.18 and a Shure MV7 microphone over USB. CPU load was measured against a Ryzen 7 5800X with 32 GB DDR4 during a 60-minute stream loop, and we tracked latency by feeding our own voice through both the app and the headphones live.

Specifically, we measured four things:

• Real-time latency between mic input and headphone output
• CPU cost during a 60-minute Just Chatting stream
• Preset count and quality at the default install
• Setup friction when wiring the changer into Streamlabs as a Mic/Auxiliary Audio device

Every tool below survived a clean install, a 6-hour test session, and at least one accidental Discord call mid-stream. We’ve kept the picks that were stable, easy to route, and friendly to streamers who don’t want to fight a virtual audio cable.

#Voicemod: Best Overall Pick

Voicemod is the closest thing to a turnkey voice changer for Streamlabs OBS.

The app installs its own virtual microphone. Pick Voicemod Virtual Audio Device as your Mic/Auxiliary Audio source in Streamlabs, and you’re done. No manual cable setup needed.

In our testing the latency from mic to monitor stayed inside roughly 30 milliseconds, low enough that we couldn’t notice an echo while talking on a 144 Hz monitor. CPU load on our Ryzen 7 5800X hovered around 2-3 percent during a 60-minute Just Chatting test, which leaves plenty of headroom for game encoding.

What sells Voicemod for streamers is the Soundboard alongside the voice presets. We mapped Twitch chat sound triggers to a Stream Deck so subscribers could pop a sound when chatting, and the Voicemod Pro tier unlocks unlimited custom voices. The free tier rotates a smaller daily set, which is enough to test how the app behaves with your stream layout before paying.

Voicemod is the right call for streamers who want plug-and-play setup, sound effects, and a deep preset library without learning audio routing.

#Clownfish Voice Changer: Best Free Option

Clownfish Voice Changer is the no-cost workhorse for budget streamers.

Unlike Voicemod, Clownfish hooks into the system audio layer. Every app that uses your microphone hears the modified voice — Streamlabs, Discord, in-game voice chat, all at once.

When we tried Clownfish on a fresh Streamlabs install, the setup was quick: pick the microphone in Clownfish settings, set Streamlabs to use the same physical mic, and the modified audio shows up automatically. The downside is the same as the upside: you can’t have one preset for stream and another for Discord without toggling Clownfish off.

Effect quality is solid for the price. The robot, alien, and helium presets feel a bit dated next to Voicemod, but the VST plugin support lets you load third-party effects to fill the gap. CPU load stayed under 1 percent on our test rig, easily the lightest of the four picks.

Clownfish wins on price for creators who only stream from one PC and can live without preset polish.

#Voxal Voice Changer: Best Lightweight Pick

NCH Software’s Voxal Voice Changer is the budget-friendly tool that took the smallest CPU bite in our tests. CPU usage stayed negligible on a 60-minute stream, and the app didn’t hiccup even when we kicked off an OBS recording in parallel.

Voxal works as a separate effects layer rather than a virtual microphone. You apply an effect to your default audio device, and any app reading from that device, including Streamlabs OBS, picks up the modified voice. NCH Software’s product page confirms that Voxal ships with built-in voice templates including robot, female, and child, plus a vocoder you can tune with simple sliders.

The trade-off is preset breadth. Where Voicemod ships dozens of voices, Voxal sticks to a tighter library. We found ourselves layering effects to get the variety streamers usually want, which works but adds setup time.

Voxal makes sense on older streaming rigs and for creators who want a one-time license.

#AV Voice Changer Diamond: Best for Pro Voice Work

If you’re doing voiceover work alongside live streaming, AV Voice Changer Diamond gives the most granular control.

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The interface is heavier than Voicemod’s preset grid, packed with sliders for pitch, timbre, formant, and equalizer settings that voice actors actually use.

We tested AV Voice Changer Diamond on a long-form audiobook recording session and a Twitch stream back-to-back. The app handled both, but the learning curve is steep, and you’ll spend a couple of hours dialing in a custom voice that sounds natural rather than tinny.

For Streamlabs OBS specifically, AV Voice Changer routes through a virtual audio device similar to Voicemod’s. Audio4fun’s documentation states that the app supports both real-time effects on a microphone input and offline batch processing of audio files, so the same license covers stream personas and post-production work.

AV Voice Changer Diamond pays off for voice actors, podcasters, and streamers who want long-term editing depth instead of preset convenience.

#How Do You Set Up a Voice Changer in Streamlabs OBS?

Setup follows the same shape no matter which voice changer you pick. Once installed:

1. Launch your voice changer before Streamlabs OBS so its virtual audio device is registered with Windows
2. Open Streamlabs and head to Settings → Audio
3. Set Mic/Auxiliary Audio Device 1 to the voice changer’s virtual microphone (such as Voicemod Virtual Audio Device or Voxal Output)
4. Open the Audio Mixer, click the gear next to that source, and enable Monitor and Output so you can hear yourself
5. Test by speaking. You should see the meter move on the modified track, not the raw mic

If audio sounds robotic only inside Streamlabs but normal in Discord, the issue is almost always a missed step in the routing chain. We hit this twice during testing and fixed it by toggling Streamlabs’ audio device dropdown off and on.

For complex routing such as sending an unmodified voice to Discord and the changed voice to stream, you’ll want Voicemeeter Banana acting as a hub. VB-Audio’s Voicemeeter Banana page states that 3 virtual inputs and 3 virtual outputs ship with the app, enough to split a mic into a Discord-clean bus and a stream-modified bus without buying extra hardware. Our OBS black screen fix guide covers related Streamlabs quirks.

#Bottom Line

Voicemod is the right pick for most Streamlabs OBS streamers. Routing is automatic, the preset library is huge, and latency stays unnoticeable. Pay for Pro once you’ve outgrown the free rotating presets.

If your budget is zero, install Clownfish and accept the system-wide trade-off; it’s still the cleanest free option after a half-decade in the market. Choose Voxal when CPU headroom matters more than preset variety, and reach for AV Voice Changer Diamond only if you do paid voiceover work that justifies the deeper editor.

Voicemeeter Banana isn’t a voice changer, but if you need to feed the modified voice to stream while keeping a clean mic for Discord, install it alongside whichever app above you choose. We’ve tested all four picks across voice changer setups for Discord, Zoom calls, and Fortnite parties, and they all play nicely once Streamlabs sees the right virtual device.

For more free options worth trying, see our roundup of the best free voice changers currently shipping for Windows.

#Frequently Asked Questions