Case Study
Confidential · Industrial Equipment Manufacturer
42 product and training videos dubbed into 6 languages with AI voices and native-speaker QA — delivered in three weeks at a third of the studio quote.
Challenge
The Problem
Due to a non-disclosure agreement, we are unable to identify this client by name. The client is an industrial equipment manufacturer selling through distributors across Europe, Latin America, the Middle East, and China. Their video library — product demos, installation guides, and maintenance training — existed only in English, and distributors were repeatedly asking for local-language versions. Studio dubbing quotes for 42 videos across 6 languages came back at roughly three times the available budget with a ten-week timeline. The client was open to AI voices but had two concerns: whether AI could pronounce alphanumeric model numbers and technical terminology correctly, and whether the result would sound credible to professional buyers evaluating serious equipment.
Solution
What We Did
MediaLocalize ran a paid pilot on two videos in German and Arabic to settle the quality question before committing the full library. Voices were cast from our curated 130-voice catalog to match each market's expectations — a measured, technical male voice for German; a warm female voice for Latin American Spanish; Modern Standard Arabic for the Gulf. Scripts were adapted for spoken rhythm rather than translated literally, with sentence lengths tuned to the original timing so on-screen visuals stayed in sync. A custom pronunciation lexicon covered every model number, brand term, and unit of measure, and SSML markup controlled pauses and emphasis around specifications. Every language then went through a native-speaker QA pass against a fixed checklist — terminology accuracy, pacing, loudness normalized to EBU R128, and sync tolerance on talking-head segments — before any file was delivered.
Results
The Outcome
All 252 localized versions — 42 videos in 6 languages — were delivered three weeks after the pilot was approved, at roughly one-third of the lowest studio quote. Distributor feedback was immediate: the client's German partner asked who the new voice actor was. The client has since moved AI dubbing into their standard release process — every new product video is now dubbed into all six languages at launch, and the pronunciation lexicon has grown into a maintained asset that keeps model names consistent across every new recording.
The deciding factor in AI dubbing is rarely the voice itself — modern AI voices are convincing. It is the unglamorous infrastructure around them: scripts adapted for speech rather than reading, a pronunciation lexicon that gets model numbers right every single time, and a native-speaker QA gate before anything ships. With those in place, AI dubbing stops being a budget compromise and becomes a production advantage — every market gets the video on launch day, not months later.