
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
Highest quality lip sync
Recommended by YouTube
Data Privacy
September 12, 2025

This is one of the most important questions businesses ask when considering AI-based video translation – and rightly so.
Your videos may include sensitive internal communication, product information, or personal data. You need to know your content is safe.
Let’s get right to the point:****
No, your data is never used for AI training at Dubly.
Dubly does not train language models, voice models, or lip sync systems using customer data.
Your video content, voices, transcripts, or translations are never used to improve general AI systems.
That means:
No content is extracted to train future models
No machine learning is applied to your material unless it directly serves your specific request
Even features like voice cloning (e.g. using the original voice in other languages) are performed only for your use — never for training the system
Your data stays yours, and is never repurposed.
All customer content is processed in a separate and isolated workspace — often referred to as a "sandbox."
What that means:
No data sharing between customers
No access from other accounts
No cross-project contamination
Even if you're using our API or submitting hundreds of videos in bulk, the data stays within your secure account context.
At Dubly, data is retained only as long as necessary to fulfill your project.
After translation and delivery, all source files and intermediate data are automatically deleted
You can also manually delete content at any time
All backups, logs, and infrastructure follow strict encryption and retention protocols, fully GDPR-aligned
You stay in control – not just during processing, but also after completion.

Dubly is a German company based in Leverkusen and Frankfurt.
We operate under strict European data protection standards — by design.
That includes:
No data processing on non-EU servers
Subprocessors only used under EU Standard Contractual Clauses (SCCs)
Optional DPA, NDA, and TOM documents available on request
Full support for data access, deletion, and audit requirements
Our infrastructure is designed for privacy-first organizations.
Results in just a few minutes
No credit card required
Best translation quality worldwide

When you use Dubly, you can rest assured:
✅ Your data is never used for AI training
✅ Processing is fully isolated and secure
✅ Content is deleted after processing
✅ All operations follow GDPR and EU data standards
✅ Contracts, safeguards, and documentation are available on request
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

Use Cases
Looking for an AI video translator? We answer how to translate video free using 3 methods: Subtitles, Basic TTS, and Professional Lipsync.
Simon Pieren
Dec 8, 2025

Use Cases
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.
Simon Pieren
Nov 28, 2025