Sub Station Alpha

Sub Station Alpha

Sub Station Alpha (SSA) is a free software program used to create and edit subtitles for videos. It supports multiple subtitle file formats and allows users to time subtitles, style text, adjust colors, and more.
Sub Station Alpha image
subtitles timing text-styling colors video-editing

Sub Station Alpha (SSA)

Free software program for creating and editing subtitles for videos, supporting multiple subtitle file formats with features like time adjustment and text styling.

What is Sub Station Alpha?

Sub Station Alpha (SSA) is a popular free open source software used to create and edit subtitles for videos. It was originally developed in 2001 and supports a wide variety of subtitle file formats including Sub Station Alpha (.ssa), Advanced Sub Station Alpha (.ass), SubRip (.srt), MicroDVD (.sub), DVD Subtitle System (.txt), MPL2 (.mpl), and more.

Some key features of Sub Station Alpha include:

  • Precise subtitle timing that syncs text with video audio.
  • Styling and formatting options for subtitle text including font, size, colors, styles, alignment, margins, and more.
  • Support for multiple subtitle tracks in one file.
  • Ability to create animated text effects for karaoke-style subtitles.
  • Translation and spellcheck functions.
  • Scripting and automation using internal scripts.

SSA is used by subtitlers, fansubbing groups, video creators and editors to add professional-quality subtitles and closed captions to video content. Its advanced timing and text formatting features have made it a longtime favorite software for subtitling enthusiasts and those working with video globally. The open source program runs on Windows and Linux systems and is available free of charge.

Sub Station Alpha Features

Features

  1. Create and edit subtitle files
  2. Support for multiple subtitle file formats like SubRip (.srt), SubStation Alpha (.ssa), Advanced SubStation Alpha (.ass)
  3. Ability to time subtitles and sync them with video
  4. Text styling and formatting options
  5. Adjust colors, fonts, styles of subtitle text
  6. Spell checking
  7. Translation and transliteration of subtitles
  8. Karaoke subtitle creation
  9. Video preview to preview subtitles with video
  10. Supports various video formats

Pricing

  • Free
  • Open Source

Pros

Free and open source

Cross-platform availability

Powerful subtitle editing capabilities

Support for many subtitle formats

Active development and support

Cons

Steep learning curve

Complex interface

Lack of support for some niche video formats


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