.ssa Video -
SSA (SubStation Alpha) is a specialized subtitle format used to display stylized text and graphics alongside video content. While most users are familiar with basic formats like SRT, the .ssa extension offers far more creative control, making it a cornerstone of the anime fansubbing community and karaoke video production. What is an .SSA Video File? Technically, an .ssa file is not a video itself but a timed-text script that runs in synchronization with a video file. It was created by a programmer named CS Low (Kotus) for the SubStation Alpha software. Unlike standard subtitles that only show plain text, SSA files include data for: SSA File Extension - What is .ssa and how to open?
What is .SSA? SSA (SubStation Alpha) is a subtitle file format that goes far beyond simple timecodes and text. It was created to allow advanced styling, positioning, and animation of subtitles, making it a favorite for fansubbing (fan-made subtitles for anime and foreign films). Its successor is .ASS (Advanced SubStation Alpha) , which extends SSA with more features. Core Features of .SSA 1. Styling (Individual & Global)
Font Name, Size, Weight (bold, normal, etc.) Primary, Secondary, Outline, Shadow Colors (in &HBBGGRR hex format, Blue-Green-Red) Alpha (Transparency) support per color Borders & Shadows : Outline width, shadow depth, blur Spacing & Scaling : Character spacing, X/Y scaling Rotation (simple angles)
2. Positioning
Alignment (1-9 numeric keypad style: 1=bottom-left, 5=center, 9=top-right) Explicit X,Y coordinates using absolute or relative margins Margins (left, right, vertical)
3. Timing & Animation
Exact start & end times (centiseconds precision: 0:00:01.23 ) Fade effects : \fad(t1, t2) for fade in/out over milliseconds Move effect : \move(x1,y1,x2,y2,[t1,t2]) for smooth motion Karaoke timing : \K or \k to highlight syllables in sync with music .ssa video
4. Drawing (Vector Graphics)
Drawing commands : \p1 enables drawing mode using simple vector commands (lines, curves, moves) Used for logos, decorative elements, or subtitles that follow a shape
5. Overrides (Inline Formatting) These are applied per line using backslash codes: SSA (SubStation Alpha) is a specialized subtitle format
\b1 / \b0 – Bold on/off \i1 / \i0 – Italics \u1 – Underline \fnArial – Change font \fs24 – Font size (24 = 24px) \c&HFF0000& – Primary color (red) \a6 – Alignment override \fr30 – Rotation (30 degrees) \blur5 – Gaussian blur \clip(x1,y1,x2,y2) – Clip region
6. Multiple Styles You can define several named styles (e.g., Default , SongLyrics , Signs ) and assign each subtitle line a different style. 7. Event Types