
Tech
AI Lip Sync Explained: Stop Asynchronous Lips in Video Translations
Asynchronous videos look unprofessional. Learn how AI Lip Sync and Visual Dubbing perfect your translations – GDPR compliant and scalable.
Simon Pieren
Dec 23, 2025
GDPR compliant
Made in Germany
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Data Privacy
September 12, 2025

AI-powered video translation is transforming how companies communicate across borders.
Whether for marketing, training, or internal communication – multilingual video content is no longer a luxury, it’s a necessity.
But when videos contain people’s voices, faces, or sensitive information, a critical question arises:
Is the translation process compliant with EU data protection laws?
The answer depends entirely on how and where the data is processed – and which provider you choose.
Videos often contain personal data, such as:
A person’s voice (a biometric identifier)
Recognisable faces or individuals
Spoken content revealing roles, opinions, or confidential information
Whether it’s an internal training video or a public-facing brand message – as soon as identifiable people are involved, the General Data Protection Regulation (GDPR) applies.
This makes companies responsible for ensuring any third-party AI provider processes the content lawfully, securely, and transparently.
Under the GDPR, any processing of personal data must meet strict requirements. These include:
If a third-party provider (like Dubly) processes video data, a Data Processing Agreement (DPA) under Article 28 GDPR is mandatory.
Data subjects (e.g., employees, customers, partners) have the right to access, correction, and deletion of their personal data. Companies must ensure this is technically and contractually possible.
Only the data strictly necessary for the translation task may be used – and only for the specified purpose.
Providers must implement appropriate Technical and Organisational Measures (TOMs), such as encryption, access control, and audit logging.
Video and audio data must be deleted promptly once it’s no longer needed.
If non-EU subprocessors (e.g. in the US) are involved, EU Standard Contractual Clauses (SCCs) must be in place to ensure lawful processing.

Many AI video translation tools are built for speed and convenience – but neglect core data protection principles. Common issues include:
Processing data on US-based servers without safeguards
No DPA available or incomplete contracts
Reuse of user data for training general AI models
Lack of transparency on data retention or subprocessors
No way to fulfil access or deletion requests
No real control over security standards
In short: what seems like a smart tech shortcut can become a legal and reputational liability – especially for organisations in the EU.
Before choosing an AI video translation provider, check for the following:
Is a Data Processing Agreement (DPA) under Article 28 available?
Is data stored exclusively in the EU – and only processed under SCCs where necessary?
Are your files excluded from any AI model training?
Are technical and organisational safeguards (TOMs) properly documented?
Are deletion and retention policies clearly defined and implemented?
Can the provider support full compliance with data subject rights (access, erasure, etc.)?
Can NDAs or custom confidentiality agreements be signed if needed?
If the answer to any of these is unclear or negative – proceed with caution.
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AI video translation can be fast, powerful and cost-efficient – but only if your provider is legally and technically fit for purpose.
Dubly combines innovation with trust, helping you localise content at scale without legal uncertainty.
If your organisation values control, transparency, and GDPR compliance – Dubly is the partner that truly delivers.
About the author

Simon Pieren
Co-Founder | Marketing & Sales

Tech
Asynchronous videos look unprofessional. Learn how AI Lip Sync and Visual Dubbing perfect your translations – GDPR compliant and scalable.
Simon Pieren
Dec 23, 2025

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Looking for an AI video translator? We answer how to translate video free using 3 methods: Subtitles, Basic TTS, and Professional Lipsync.
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Looking to "translate video free"? Learn the technical differences between standard dubbing and generative AI Lip Sync, and how to test professional quality risk-free.
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