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Human-generated transcripts provide accuracy that is lost in speech recognition methods.

Why Is Speech Recognition Inferior to Transcription?

  • Speech Recognition results are inaccurate, unreliable, and inconsistent – with error rates often exceeding 20%.
  • 80 – 90% accuracy is simply inadequate for most applications.
  • Accuracy below 97% is insufficient when comprehension is crucial.
  • Transcripts with high error rates do not satisfy compliance with legal mandates.
  • It costs more to edit speech recognition scripts than it does to use a professional transcriber to start with.
  • Read more about our research on accuracy and comprehension.

How are CaptionSync Transcripts Better Than Speech Recognition?

  • We use professional stenographers and provide word-for-word reliable transcripts.
  • Parenthetic comments are provided for music and sound effects.
  • The high accuracy rate enables transcripts to be used as a study tool.

CaptionSync Provides

  • Transcripts by themselves OR bundled with captioning files.
  • Quick turnarounds… 3 business days or 1 business day Rush.
  • Availability for English, Spanish or a mix of the two .

Other Uses of Transcripts

  • As meta data, they optimize search engine results.
  • Source for translations to other many other languages.
  • Study tools and lecture notes to aid students.
  • Ensure ADA accessibility compliance.


  • Web-based pay per use service.
  • No software to buy or install.
  • Choose just the services needed (transcription can be requested by itself, or bundled together with our captioning at the same time).
  • Pay online via credit card or Visa/MasterCard branded purchase cards.

Get Pricing button

  • AST's captioning has helped us achieve online accessibility for NASA's Destination Tomorrow, the NASA SCIenceFiles™, and NASA CONNECT™ quickly and cost effectively.  And we are all set to do video search at no additional cost!
    Dr. Randall C.
    NASA Langley Research Center

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