Sonex Labs

Hindi dubbing with AI: what a 771-upvote game mod teaches about pacing, cloning and ownership

AI dubbing has moved from studio demos to hobbyists' desks. In July 2026 one Indian player replaced all 3,000+ English lines of the game Black Myth Wukong with Hindi, using open-source speech-to-text, voice cloning and text-to-speech models on his own GPUs. What his dub did not yet do well was pacing, and that is the main lesson for anyone dubbing into Hindi or between Indian languages. Translated lines run long, so the script has to be fitted to the timing before any audio is made. The other lessons are about people rather than software. Consent and ownership of a cloned voice need settling before the first line is rendered, and audiences accept AI dubs far more readily when they are labelled and the original track stays available.

Hindi AI dubbing lessons: Hindi dubbing with AI: what a 771-upvote game mod teaches about pacing, cloning and ownership
Written by
Anmol Agarwal
Published
Last updated
Reading time
8 min read
On this page
  1. What the Black Myth Wukong and God of War Hindi mods did
  2. Pacing is the hard part, because translated Hindi runs long
  3. Dubbing between Indian languages, and the languages studios skip
  4. Consent and ownership for cloned voices
  5. Publishing a dub: rights, monetisation and cost
  6. Expect pushback, and work in the open
  7. Sources

What the Black Myth Wukong and God of War Hindi mods did

In July 2026 a player posted on r/IndianGaming that he had dubbed the whole of Black Myth Wukong into Hindi with a fully local AI pipeline of TTS, voice cloning and speech to text (r/IndianGaming). All 3,000+ lines of the English voice track were replaced, and the post reached a score of 771 with 118 comments in the archive snapshot we checked. In the comments he said he used open-source models on two of his own GPUs, an RTX 3080 and an RTX 3090, after a few weeks of trial and error.

The hard part, he wrote, was not the dubbing but the game's audio engine. Converting the files the normal way broke the subtitles, and keeping them in sync took most of the work. His own list of what was not yet working was short and honest: some English lines still bled through, voice pacing needed polish, and it was not studio quality.

A follow-up in August 2026 dubbed God of War Ragnarök the same way (r/Indiangamers). This time he said every line was timed to the original performance, the subtitles stayed in sync, and pacing was "good enough". He put the Hindi audio in the game's unused Spanish language slot, so players could switch back to English at any time. One of his GPUs died in the process.

The pipeline behind an AI dub

The pipeline he described is the standard one for AI dubbing. Speech to text transcribes the original with timestamps for each line, and the lines are translated and then fitted to the original's length. A voice is chosen or cloned, with the speaker's permission, and each line is synthesised, often in several takes. Finally each take is checked against the picture, the subtitles and the next line, then mixed in.

Every stage matters, but the fitting step in the middle separates a watchable dub from a rough one. Sonex Labs does not sell a dubbing tool; Pāṇini, its text-to-speech model, can be the synthesis stage of a pipeline like this, and the rest is script work and tooling you assemble yourself.

Pacing is the hard part, because translated Hindi runs long

Pacing fails because a faithful Hindi translation is often longer than the line it replaces. Hindi puts the verb last and adds postpositions, and translation tools tend to reach for complete, formal sentences. A two-second English line can come back as a four-second Hindi one, and then the voice either races to fit or spills over the next shot.

Professional dubbers handle this with more flexibility than engineers often assume. A large study of professionally dubbed film and TV by Amazon researchers found that human dubbers put vocal naturalness and translation quality ahead of strict timing and lip-sync constraints (Brannon and others, TACL 2023). Their conclusion takes "a more qualified view" of timing rules, which suggests a dub that sounds natural can stray slightly from the original's length and still work.

Three ways to make a line fit

There are three ways to make a line fit, and they are not equal. Rewriting the translation to the original's length keeps the delivery natural, and it is what human dubbing writers do. Raising the speech rate works for small gaps; Pāṇini's API accepts a speed between 0.5 and 2.0, but past a modest increase speech starts to sound hurried. Time-stretching the finished audio is the last resort, because it adds artefacts.

Listen to one English line and three Hindi versions below. The literal translation is correct but much too long. The fitted version says the same thing in about the same time. The Hinglish one is what an urban Hindi dub might use for a younger audience, and our guide to Hinglish text to speech covers how mixed scripts are read.

Planning with characters per minute

For planning, it helps to know how much text fills a minute. In a measurement on 24 October 2026, Pāṇini's Hindi voice Priya read about 937 characters per finished minute of everyday Hindi, and another voice read the same text about 21 percent faster. So treat any ratio as voice-specific, time your own lines, and see our guide to Hindi voiceover length in characters per minute for the method.

The original English line

We ride at dawn. Get some rest.

Literal Hindi translation: correct, but far longer than the original

हम सुबह होते ही यहाँ से निकल पड़ेंगे, इसलिए अब तुम्हें थोड़ा आराम कर लेना चाहिए।

Fitted Hindi: the same meaning in about the original's time

सुबह निकलेंगे। अभी आराम कर लो।

Fitted urban Hinglish, for a younger audience

सुबह सुबह निकलना है, अभी rest कर लो।

Dubbing between Indian languages, and the languages studios skip

Dubbing from one Indian language into another is harder than dubbing from English, because listeners know both sides well. A filmmaker trying to bring Telugu content to Hindi audiences found standard Hindi from the big tools passable. He wrote that once regional accuracy and cadence mattered "it just falls apart pretty fast" (r/Filmmakers, May 2026). He also asked whether the tools kept the original speaker's tone or flattened it.

Both problems are real, and neither has a settings fix. Cadence comes from the translated script, so a Telugu-to-Hindi dub needs a writer who knows how Hindi speakers in the target region talk. Tone depends on the voice, and a cloned voice keeps the accent of its reference speaker in every language it speaks.

That has a direct consequence for casting. Clone a Telugu actor and the Hindi dub will carry a Telugu accent, which may suit that character or may not. For a native Hindi delivery, start from a Hindi speaker's voice, either a platform voice or a Hindi voice artist who agrees to be cloned. Our guide to why a cloned voice keeps its accent across languages explains the mechanism.

AI dubbing also reaches languages that studios rarely dub into. A poster on r/kolkata asked why Hollywood films get Hindi, Tamil and Telugu dubs, often Malayalam and Kannada too, but skip Bengali "99% of the time" (r/kolkata, August 2026). That figure is the poster's impression, not a count. Still, for a small creator, a Bengali or Odia dub is now mostly a question of script work and native review rather than of hiring a studio. The sample below uses the Bengali text to speech voice.

The same fitted line in Bengali

ভোরেই বেরোব। এখন একটু বিশ্রাম নাও।

Publishing a dub: rights, monetisation and cost

Dubbing someone else's video and earning from it needs the rights holder's permission, because the video and its audio belong to them. YouTube's monetisation policies also exclude reused content that adds little of your own. A dub made with the original creator's agreement, and published by them or under their licence, avoids both problems; our guide to AI voices and YouTube monetisation for Hindi channels explains the policy.

The voice itself is usually the smallest cost in a dub; translation, fitting and review take most of the time. As one data point, Pāṇini lists $0.03125 per 1,000 characters, so a 100,000-character Hindi script costs about $3.13, or ₹297 at ₹95.04 to the dollar (24 October 2026). Count characters in the final fitted script, since retakes add to the total. The Hindi voice-over page for creators has samples of the Hindi voices.

Expect pushback, and work in the open

Creative communities are often hostile to AI dubbing, so plan for it rather than hide from it. Replies to the Telugu filmmaker suggested it would be easier to hire a translator and a voice actor. One commenter on the Wukong post wrote that real voice actors bring emotion, nuance and humour that AI still struggles with. The archived thread also shows a moderator notice removing the post under the subreddit's rule against AI slop, despite its score.

Viewers dislike AI dubs most when they cannot avoid them. A r/youtubeindia post complained about videos playing an auto-dubbed AI voiceover in English instead of the original audio (r/youtubeindia, August 2025). The God of War mod got this right by leaving the English track untouched and putting Hindi in a spare language slot.

Three habits help. Say that the dub is AI-generated and credit the original performers. Keep the original audio available. And show the work, such as the timing and the script fitting, because a careful dub is easier to defend than a text dump.

Sources

  1. r/IndianGaming: I built a Hindi AI dubbing pipeline and dubbed the entire Black Myth Wukong, Jul 2026Secondary
  2. r/Indiangamers: God of War Ragnarök Hindi audio mod is here, Aug 2026Secondary
  3. r/Filmmakers: AI dubbing one Indian language into another, May 2026Secondary
  4. r/kolkata: Why doesn't foreign content get dubbed in Bengali?, Aug 2026Secondary
  5. r/youtubeindia: YouTube auto-dubbing complaint, Aug 2025Secondary
  6. Brannon, Virkar and Thompson, Dubbing in Practice: A Large Scale Study of Human Localization With Insights for Automatic Dubbing (TACL 2023)Official
  7. Sonex Labs Terms of Use (last updated 1 March 2026)Official
  8. ExchangeRate-API: USD to INR, 24 Oct 2026 (₹95.04)Official

Change log: 24 Oct 2026, Rewritten as one continuous guide: added the Brannon et al. (TACL 2023) study of professional dubbing, the measured Hindi characters per minute, and an explicit note that Sonex has no dubbing tool; takeaways, FAQs and the pipeline flowchart folded into the body

Questions about your calling setup?

Tell us what you call about, where and in which languages.