Real-Time AI Dubbing for Live Streams, Games and Calls

What live dubbing means

VoxisLive captures system audio through WASAPI loopback, detects speech on-device, translates it with a multimodal real-time AI model, and speaks a synthesized voice back — continuously, without manual activation, a few seconds behind the speaker, the way a human simultaneous interpreter works. The output is a spoken voice rather than subtitles, and there is no audio driver to install.

Want to dub a video file you publish rather than something playing live? That is post-production dubbing, a different kind of tool — see the best AI dubbing software for video files.

The Short Answer

There's an important split before anything else: do you want to dub something for yourself while you watch or attend it, or dub your own broadcast for an audience watching you? VoxisLive, StreamVox and DubTab are personal tools — they translate what's already playing on your device, for you. Maestra, Deepdub Live, SyncWords and Camb.AI are broadcaster tools — they dub what you're producing, for other people, usually through an enterprise API or a production tool like OBS. Watching a foreign stream, game or meeting? Look at VoxisLive, StreamVox or DubTab. Broadcasting to a multilingual audience yourself? Look at Maestra, Deepdub, SyncWords or Camb.AI. The comparison below breaks down all seven.

Quick Comparison

Seven Real-Time Dubbing Tools, Compared

VoxisLive — dubs what you're watching, not what you're broadcasting

VoxisLive is built for your own listening rather than for broadcasting to an audience: it captures whatever's already playing on your Windows or Linux PC — a stream, a game, a meeting, a video — and speaks the translation back through your own speakers, driverless, in 79 languages. Maestra, Deepdub Live, SyncWords and Camb.AI dub outgoing content for other people to hear; VoxisLive, like StreamVox and DubTab, dubs incoming content for you. Windows 10/11 or Linux, a few seconds behind the speaker, like a human simultaneous interpreter.

Maestra — live dubbing for streamers, in your own cloned voice

Maestra's live dubbing mode translates and voice-clones a speaker's audio in real time for OBS, Zoom and Teams — built for a streamer or presenter who wants their own voice heard in another language by their audience, the opposite direction from VoxisLive. It covers 125+ languages and doubles as an on-demand video-dubbing editor for when you don't need live.

Deepdub Live — enterprise broadcast infrastructure, not a consumer app

Deepdub Live dubs live sports, news and events for platforms serving a global audience, with a vendor-claimed latency low enough for frame-accurate lip sync and coverage of 100+ languages. It's sold through an API and enterprise contracts aimed at broadcasters, not something an individual installs to watch a stream.

SyncWords — captioning-first, with live dubbing added on top

SyncWords built its business on real-time captioning and subtitles, then added live AI dubbing to the same infrastructure, sold per-minute to event producers, broadcasters and enterprise teams. It pairs captions and dubbed audio for the same live feed rather than making you choose one, which suits organizations already using it for accessibility compliance.

DubTab — VoxisLive's closest cousin, scoped to a browser tab

DubTab is the tool here most similar to VoxisLive in spirit — a lightweight, individual-listening tool rather than a broadcaster platform — but scoped to a browser extension instead of a full desktop app. It dubs audio inside browser tabs only (YouTube, Twitch, Google Meet) in 60+ languages, with on-device, privacy-first processing. It can't reach a native game or app outside the browser the way VoxisLive's system-wide audio capture can.

Camb.AI — live dubbing for broadcasters, via a demo or its Expert plan

Camb.AI's enterprise DubStream product lets platforms and broadcasters live-stream in multiple languages simultaneously, with named clients including IMAX and the Australian Open; Camb.AI says DubStream is not self-serve and requires engagement with its team. Camb.AI's live-dubbing page also addresses creators on YouTube, Twitch and X, and leads to a demo booking. Camb.AI has a free self-serve plan, but its pricing page does not include live streaming in it: there, live streaming appears only in the $900-a-month Expert plan (15 minutes a month, one stream at a time); beyond that, Camb.AI sells DubStream as an enterprise engagement. Like Deepdub and SyncWords, it dubs outgoing content at scale for an audience, not a single viewer's incoming audio.

StreamVox — the direct Windows-desktop peer

StreamVox is VoxisLive's closest desktop peer rather than an enterprise broadcast tool — same driverless system-audio capture, same personal-listening use case. It defaults to captions (49+ languages), with spoken output limited to a 21-language beta, versus VoxisLive speaking all 79 of its languages. See the full VoxisLive vs StreamVox comparison for the detailed breakdown.

Third-party language counts, platforms and latency figures above (Maestra, Deepdub, SyncWords, DubTab, Camb.AI, StreamVox) are taken from each vendor's own public site, checked August 2026 (Camb.AI re-checked 23 September 2026), not an independent lab test. Everything said about VoxisLive describes the shipping app.

How it differs from post-production dubbing tools

What you can dub live

• Streaming video — Netflix, YouTube and foreign content without an official dub
• Online meetings — Zoom, Teams or Meet participant audio, with no bot appearing in the call
• Gaming — Japanese RPGs and non-localized titles, translated as characters speak
• Podcasts and long-form audio — any desktop audio source

Output control

The original audio is ducked automatically while the dub speaks and comes back up when the line ends. How far it drops is set by the Original audio (while speaking) slider on the panel — all the way up keeps the original at full volume, all the way down mutes it — with the scenario profile in Settings → Translation (Meeting, Film or Conference) setting its starting point. Everything plays through the one output device you have selected.

Requirements and access

Windows 10 or 11, or Linux with snapd and PipeWire; internet for translation and synthesis (speech detection runs offline); no special audio hardware, no drivers. Get it on the Microsoft Store with 15 free minutes of the real voice to start, 10 free minutes of spoken translation every day after that, and prepaid packs when you want more, or explore the source-available excerpt on GitHub — see pricing.