Automatically add accurate captions to your Portuguese videos in less than 5 minutes. Sonix extracts speech, generates perfectly-timed captions, and exports to SRT or VTT format.
Log in to your Sonix account or create a free trial account. Your trial includes 30 minutes minutes of free auto-captioning for Portuguese videos.
Click 'Upload' and choose the Portuguese video file from your computer that you want auto-captioned. Sonix supports 40+ video formats including MP4, MOV, and AVI.
Make sure you select Portuguese as the language spoken before clicking the 'Transcribe' button. Our AI will extract and transcribe all speech from your video.
Once transcribed, go to the Subtitles menu and select 'Split subtitles.' Sonix automatically splits your transcript into properly-timed caption segments.
Review and correct any proper nouns or technical terms. Use our editor to fine-tune timing and make your Portuguese captions perfect.
Click 'Export' and choose SRT or VTT format for your Portuguese captions. Ready for YouTube, Vimeo, Facebook, or any video platform.
Sonix uses cutting-edge transcription algorithms to caption your Portuguese videos in minutes. Our servers can auto-caption a one-hour Portuguese video in under 5 minutes. You can then edit and fine-tune using our powerful subtitle editor.
Sonix exports Portuguese captions in two industry-standard formats: SubRip (.srt) and WebVTT (.vtt). Both formats are compatible with YouTube, Vimeo, Facebook, and virtually all video platforms and players.
Yes! From the Subtitles menu, you can choose to burn-in the Portuguese captions directly into your video. This creates a new video file with permanent, embedded captions that display on any device.
Sonix delivers 85-99% accuracy for Portuguese auto-captioning, depending on audio quality. Clear audio with minimal background noise achieves the best results. Our AI models are trained specifically for Portuguese speech patterns.
Yes. Sonix lets you customize font size, font color, background color, and caption positioning. These styling options are preserved when you burn captions into your video.
Absolutely. Export your Portuguese captions as an SRT or VTT file and upload directly to YouTube. Your captions will sync perfectly with your video's audio.
Get your Portuguese video captioned in minutes, not hours. Our AI processes at 10x real-time speed.
Export to SRT, VTT, or burn captions directly into your video. Compatible with all major platforms.
Fine-tune timing and text with our intuitive subtitle editor. Click any caption to jump to that moment.
Upload MP4, MOV, AVI, MKV, WebM, and 40+ other video formats. No conversion needed.
Your product is amazing and transcribed my files almost all accurately!
Easy to use and surprisingly accurate.
The speech to text was fast and very accurate.
The entire process is extremely straightforward and what I liked most was the accuracy of the transcriptions and translations. I must say, I had some doubts as to ...
I came across Sonix by accident... and boy was I glad I did. This tool is virtually word perfect and the SRT file it output worked perfectly...
Sonix provided the best transcription of all the platforms I have tested so far.
I would absolutely, 100%, recommend you to a friend. I think you have an incredible program.
It was super easy, affordable, and accurate!
Upload your Portuguese video and get perfectly-timed captions in minutes. Start with 30 minutes minutes free—no credit card required.
AI transcription and translation in 53+ languages.
