PERSO.ai - AI dubbing with lip sync
ESTsoft Inc. · Video
PERSO.ai is an AI dubbing platform from ESTsoft that translates videos into 99+ languages with voice cloning and lip sync. It has a free plan.
About PERSO.ai - AI dubbing with lip sync
What Is PERSO.ai
PERSO.ai is an AI video localization platform built by ESTsoft Inc., the Korean software company behind ALSee and other desktop tools. Its main product, Perso Dubbing, takes a finished video and returns a translated version where the original speaker appears to talk in a new language. The company also runs separate tools for AI avatars, live meeting dubbing, and real-time interpreting, but the dubbing suite is what most people sign up for.
The problem it targets is cost and time. Traditional dubbing needs voice actors, a studio, and weeks of post-production. PERSO.ai replaces that with an automated pipeline: upload a clip, pick a target language, and the system translates the audio, clones the speaker's voice, and redraws mouth movements to match the new words. The company says this runs at a fraction of studio pricing and reaches 99+ languages.
A few limits matter up front. Output quality depends on how clean the source audio is, and heavy facial occlusion or fast camera movement can weaken lip sync. Generation runs on credits rather than unlimited use, and the free tier includes a single dub. For broadcast-grade delivery, human review is still the safer path.
Getting Started
- Sign up at perso.ai with an email or a social login. New accounts include one free dub.
- Upload a video or audio file, or paste a link from YouTube, Google Drive, or TikTok.
- Pick the target language for dubbing and choose a voice, either the auto-cloned original or a library voice.
- Review the auto-generated script and subtitles, then edit any line. The voiceover updates to match.
- Export the dubbed video as MP4, MOV, or WebM, with burned-in subtitles or a separate SRT file.
Product Information
A quick look at PERSO.ai - AI dubbing with lip sync's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- YouTube and social creators
- Marketing and ad teams
- Course creators and trainers
- Media and game studios
Tasks
- Video translation with lip sync
- Voice cloning
- Subtitle generation and editing
- Direct-link dubbing
Scenarios
- Weekly social posting
- Product explainer localization
- Training rollout
- Live multilingual meetings
Key features
Voice Cloning with High Voice Match
PERSO.ai learns the speaker's voice characteristics, accent, and tone, then reuses them in the translated track. The company advertises a 98.5% voice match, but that figure is its own claim rather than an independent test. The effect is that a dubbed video still sounds like the original person speaking, not a generic narrator.
Lip Sync for On-Screen Speakers
When a face is visible, the platform redraws mouth movements so they line up with the translated audio. This is the feature that separates it from plain voiceover tools, which keep the original mouth motion and rely on viewers tolerating the mismatch. Clean, front-facing footage gives the best results.
99+ Dubbing Languages
The platform dubs into more than 99 languages, including Spanish, French, German, Japanese, Korean, Portuguese, Hindi, Arabic, and Turkish, with speech recognition covering 100+ languages. That range lets a single team address most major markets without building separate workflows per region.
Real-Time Script Editing
After the AI writes the translated script, you can rewrite any line yourself. Terms, brand names, and jokes that machine translation mangles can be fixed in seconds, and the voiceover regenerates to match the edit. This is the main quality-control step before export.
Subtitle and Transcript Tools
Alongside dubbing, PERSO.ai works as a subtitle generator and transcript tool, with a subtitle editor and translator. You can burn captions into the video or export a separate SRT file for upload to platforms that expect captions. Audio separation and speech-to-text sit in the same suite.
Multi-Format Export
Finished videos export as MP4, MOV, or WebM. Free and lower tiers cap resolution, while higher plans reach 4K. The separate SRT option matters for channels that want captions as a standalone file rather than baked into the picture.
Related PERSO.ai Products
Beyond dubbing, the company offers Perso LiveDub for real-time dubbing in video meetings on Zoom and Google Meet, Perso Live Translator for two-way interpreting in 32 languages on tablets and kiosks, and Studio Perso for Korean AI avatars. These share the same account but are sold as separate tools.
Pros and cons
Pros
- Handles dubbing, voice cloning, and lip sync in one automated pipeline, which cuts the usual multi-vendor setup.
- Supports 99+ dubbing languages, so one team can cover most global markets.
- A free plan with one full dub lets you judge quality before paying.
- Script editing after the AI pass gives real control over terminology and tone.
- A published Dubbing API is available for teams that want to automate the workflow.
Cons
- The 98.5% voice match is a vendor claim, and real quality swings with source audio.
- Lip sync weakens on footage with heavy occlusion, profiles, or fast motion.
- Monthly credits cap how much you can dub, and long videos eat them quickly.
- The free plan covers a single generation, so testing at scale needs a paid tier.
Frequently asked questions
PERSO.ai is an AI dubbing platform that translates video and audio into 99+ languages, cloning the original speaker's voice and syncing lip movement to the new track. ESTsoft Inc. builds it, and Perso Dubbing is the main product.
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