Hardcode French subtitles into video

Burn-in (hardcoded) subtitles are permanently embedded in the video pixels and cannot be turned off. Soft subtitles (SRT/VTT) are separate files that viewers can toggle on/off. Burn-in is ideal for social media where caption support is inconsistent.

Yes! Sonix offers extensive styling options including font family, size, color, background color, opacity, and position (top, middle, bottom). Preview your style in real-time before rendering.

Sonix preserves your original video quality during the burn-in process. We use high-quality rendering to ensure subtitles look crisp and professional without degrading your footage.

Processing time depends on video length and resolution. A typical 10-minute 1080p video takes about 5-10 minutes to render. You'll receive an email notification when your video is ready.

Sonix exports burned-in videos as MP4 files with H.264 encoding—the most universally compatible video format. Your video will play on virtually any device or platform.

No. Once subtitles are burned in, they're permanent. We recommend thoroughly reviewing and editing your transcript in the Sonix editor before rendering. You can always create a new burn-in version if needed.

Yes. Sonix transcribes French audio from Canada as well as Europe and Africa, and the in-browser editor lets you review and correct any regional vocabulary while listening to the synced audio.

Sonix accepts French recordings from any region, including Francophone Africa. Because the transcript is stitched to the audio, you can quickly verify passages with regional pronunciation or code-switching and fix them in the editor.

Yes. After transcribing a French audio or video file, you can export the transcript as SRT or VTT subtitle files, as a Word document, or in dozens of other formats.