What is SRT Format?

Introduction to SRT Files

SRT (SubRip Text) is one of the most common subtitle file formats used in video content. It's a simple text file that contains subtitle information including the timing of each subtitle and the text that should be displayed.

SRT File Structure

An SRT file consists of multiple subtitle entries. Each entry contains:

  • A subtitle number (starting from 1)
  • The timing information (start and end times)
  • The subtitle text
  • A blank line to separate entries

Example SRT File

Here's a basic example of an SRT file structure:

1
00:00:01,000 --> 00:00:04,000
Hello, welcome to OrcaSubtitle!

2
00:00:04,500 --> 00:00:08,000
Today we'll learn about the SRT format.

3
00:00:08,500 --> 00:00:12,000
<i>This text will appear in italics</i>

Timing Format

The timing format in SRT files follows this structure:

hours:minutes:seconds,milliseconds

For example: 00:02:15,500 means:

  • 00 hours
  • 02 minutes
  • 15 seconds
  • 500 milliseconds

Text Formatting

SRT files support basic HTML-style formatting tags:

  • <b>Bold text</b> - Makes text bold
  • <i>Italic text</i> - Makes text italic
  • <u>Underlined text</u> - Underlines text
  • <font color="red">Colored text</font> - Changes text color

Common Issues and Solutions

1. Timing Synchronization

If your subtitles are out of sync, you'll need to adjust all timestamp values. Many subtitle editors provide tools to shift all timings forward or backward.

2. Character Encoding

SRT files should be saved with UTF-8 encoding to ensure proper display of special characters and different languages.

3. Line Breaks

Use a single line break within a subtitle entry to create a multi-line subtitle. Use two line breaks to separate different subtitle entries.

Best Practices

  • Keep subtitles to a maximum of two lines
  • Aim for 30-40 characters per line
  • Display each subtitle for at least 1 second
  • Ensure proper synchronization with audio
  • Use appropriate line breaks for natural reading