How do I translate Welsh video to Spanish?
Upload your Welsh video to Sonix. We transcribe the Welsh audio first, then translate to Spanish. Export as subtitle files or burn captions into the video.
Convert your Welsh video content to Spanish subtitles in minutes. Sonix transcribes Welsh audio, then translates to Spanish with AI-powered accuracy.










Your Welsh content can reach Spanish-speaking audiences worldwide. Translated subtitles open doors to millions of new viewers.
Viewers engage more with content in their native language. Spanish subtitles from Welsh audio increase watch time significantly.
Human Welsh-to-Spanish translation costs $50+/hour. Sonix translates at a fraction of the cost in minutes.
AI-powered Welsh-to-Spanish translation with human-level accuracy. Edit and refine in our browser-based editor.
The ability to translate Welsh video content to Spanish has become essential in our interconnected world. Whether you're a business expanding into Spanish-speaking markets, an educator creating multilingual learning materials, or a content creator building a global audience, Welsh-to-Spanish translation bridges the gap between your message and millions of potential viewers who prefer content in Spanish.
Professional Welsh-to-Spanish translation traditionally required expensive human translators, often costing hundreds of dollars per hour of content. The process was slow, sometimes taking weeks to complete a single project. Sonix revolutionizes this workflow by combining advanced Welsh speech recognition with sophisticated Spanish translation algorithms, delivering results in minutes rather than days while maintaining professional-grade quality.
The Sonix Welsh-to-Spanish translation process begins with our industry-leading speech recognition technology. When you upload your Welsh video file, our AI models—trained on millions of hours of Welsh audio—accurately transcribe every word, capturing nuances like speaker identification, punctuation, and timing. This Welsh transcript forms the foundation for high-quality Spanish translation.
Once transcription is complete, our neural machine translation engine converts the Welsh text to Spanish. Unlike basic word-for-word translation, our system understands context, idioms, and cultural expressions, producing Spanish subtitles that read naturally to native speakers. The translation preserves the original timing and speaker labels, ensuring perfect synchronization with your video content.
Sonix provides a powerful side-by-side editor where you can view your original Welsh transcript alongside the Spanish translation. This makes it easy to verify accuracy, adjust phrasing for your specific audience, and ensure technical terms or brand names are handled correctly. You can click any segment to hear the corresponding audio, making the review process intuitive and efficient.
For specialized content—legal proceedings, medical discussions, or technical tutorials—the editor lets you fine-tune translations to match industry-specific terminology. You can also adjust subtitle timing, merge or split segments, and customize caption styling before export. The result is a polished Spanish version of your Welsh content ready for distribution.
Once your Welsh-to-Spanish translation is complete, Sonix offers flexible export options to fit any workflow. Download Spanish subtitles as SRT or VTT files for YouTube, Vimeo, or social media platforms. Export to Word or PDF for documentation purposes. Or use our burn-in feature to permanently embed Spanish captions into your video file, ensuring they display correctly on any device or platform without requiring viewer settings.
Get 30 minutes free. No credit card required. See how easy Welsh-to-Spanish translation can be.
Beyond Spanish, Sonix supports translation to 53+ languages worldwide.
Upload your Welsh video in any popular format. Sonix handles the rest.
Industry-leading Welsh speech recognition trained on millions of hours of audio for maximum accuracy.
Context-aware translation produces natural Spanish that reads smoothly to native speakers.
Compare Welsh and Spanish text side by side. Click any segment to hear the audio.
Style your Spanish subtitles with custom fonts, colors, and positioning. Burn into video if needed.
Export Spanish subtitles as SRT, VTT, Word, PDF, or 30+ other formats.
Get your Welsh-to-Spanish translation in minutes, not days or weeks.
Upload your Welsh video file to Sonix. We accept MP4, MOV, MP3, WAV, and all common formats.
Sonix transcribes your Welsh audio to create accurate source text for translation.
Select Spanish from the translation menu. Review the translation in our side-by-side editor.
Export Spanish subtitles as SRT/VTT or burn captions into your video.
Upload your Welsh video to Sonix. We transcribe the Welsh audio first, then translate to Spanish. Export as subtitle files or burn captions into the video.
Sonix uses advanced AI that delivers natural Spanish translations. Our side-by-side editor lets you review and refine any translation for your specific context.
Most files are transcribed and translated in under 5 minutes. Longer files take proportionally more time but are still much faster than human translation.
Yes! Our editor shows Welsh and Spanish side by side. Click any segment to hear the audio, adjust phrasing, and perfect your translation.
Sonix accepts all common video formats including MP4, MOV, AVI, MP3, WAV, M4A, and many more. Upload directly or from cloud storage.
Absolutely! Sonix supports 53+ languages. Translate your Welsh content to Spanish, French, German, Japanese, and many more.
Translate Welsh to Spanish in minutes. No complex setup or technical knowledge required.
Pay a fraction of human translation costs. Welsh-to-Spanish translation included with transcription.
AI accuracy with human-level quality. Edit and perfect your Spanish subtitles in our browser.
Transcribe Welsh, translate to Spanish, caption, and export—all in one platform.
Your app is amazing. Seriously, I'm blown away by the technology. The speed, accuracy, and the fact that you can play the audio and that it highlights the transcript in sync.
Time is money, and that is exactly what Sonix is saving. Time! So it's worth every penny!!
The transcript came through almost word perfect from a video file. Your system is absolute MAGIC!
I've tried your service, and I love it.
Was using another software before, but their prices went up. Your prices are better and the transcription seems more accurate. I also like that you automatically take out all of th...
Very cool and fascinating too. Ahh the power of algorithms. I can tell you that I love the overall UI experience because it's pretty, dumbed down, and very easy for me to use. I've...
Impressed at how seamless Sonix makes editing transcripts. This is so much easier and more enjoyable than manually writing an entire transcript myself.
Very accurate transcription, ease of use and customer service. Price was also very reasonable.
Start with 30 minutes free. No credit card required.
AI transcription and translation in 53+ languages.