How to Convert IDX/SUB to a .SRT Subtitle

[Do It Easily With Subtitle Edit]

While most of the subtitle files are in text format, but movies ripped from a DVD generate a IDX+SUB format.

These subtitles are not text, but images that are just a repacked file from the DVD and are given the extension of .SUB file.

When compared to the normal SRT files, the combo of the SUB and IDX file tells the player where to place the subtitles on the screen and also give them various format and colors like bold, italics etc.

This way, the subtitles can be placed near the person who is speaking the dialog and you can get to know who’s speaking.

The key to converting from image based subtitles to text based is a process called Optical Character Recognition, or OCR. This basically allows your computer to “read” the text and output the results.

Subtitle Edit by Niesk.dk is a free (open source) editor for video subtitles.

With SE you can easily adjust a subtitle if it is out of sync with the video in several different ways.

You can also use Subtitle Edit for making new subtitles from scratch (do use the time-line/waveform/spectrogram) or translating subtitles.

Subtitle Edit Features

  • Create/adjust/sync/translate subtitle lines
  • Convert between SubRib, MicroDVD, Advanced Sub Station Alpha, Sub Station Alpha, D-Cinema, SAMI, youtube sbv, and many more (200+ different formats!)
  • Cool audio visualizer control – can display wave form and/or spectrogram
  • Video player uses DirectShow, VLC media player, or MPlayer
  • Visually sync/adjust a subtitle (start/end position and speed)
  • Auto Translation via Google translate
  • Rip subtitles from a (decrypted) dvd
  • Import and OCR VobSub sub/idx binary subtitles (can use Tesseract)
  • Import and OCR Blu-ray .sup files (can use Tesseract – bd sup reading is based on Java code from BDSup2Sub by 0xdeadbeef)
  • Can open subtitles embedded inside matroska files
  • Can open subtitles (text, closed captions, vobsub) embedded inside mp4/mv4 files
  • Can open/OCR XSub subtitles embedded inside divx/avi files
  • Can open/OCR DVB subtitles embedded inside .ts (Transport Stream) files
  • Can open/OCR Blu-ray subtitles embedded inside .m2ts (Transport Stream) files
  • Can read and write both UTF-8 and other unicode files and ANSI (support for all languages/encodings on the pc!)
  • Sync: Show texts earlier/later + point synchronization + synchronization via other subtitle
  • Merge/split subtitles
  • Adjust display time
  • Fix common errors wizard
  • Spell checking via Open Office dictionaries/NHunspell (many dictionaries available)
  • Remove text for hear impaired (HI)
  • Renumbering
  • Swedish to Danish translation built-in (via Multi Translator Online)
  • Effects: Typewriter and karaoke
  • History/undo manager (Undo=Ctrl+z, Redo=Ctrl+y)
  • Compare subtitles
  • Multiple search and replace
  • Change casing using names dictionary
  • Merge short lines/split long lines
  • Export to PNG images (+bdn xml), Adobe Encore FAB image script, VobSub, Blu-ray sup, EBU stl, PAC, and plain text

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Posted on : 10 Apr 2016 @ 08:46

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