Amazon Transcribe Cheat Sheet

• A fully managed automatic speech recognition (ASR) service.
• Converts speech into text.
• It supports a wide variety of audio coding formats such as WAV, MP3, MP4, FLAC, AMR, AMR-WB, Ogg, and WebM.
• It can process batch and streaming transcriptions.

Common Use Cases

• Transcribing customer calls
• Meeting transcription
• Closed captioning

• Generating metadata to create a searchable archive

Concepts

• A confidence score is between 0 and 100, indicating the probability that a given prediction is correct.
• Low-fidelity (lo-fi) is a term used to describe audio recordings that exhibit poor sound quality. The term high-fidelity refers to high-quality audio recordings.
• Automatic content redaction
  • A process that censors sensitive information within the transcript output. 
  • Replaces redacted information with the [PII] tag.

Features

• Custom Vocabulary
  • Helps improve accuracy for content that has business-specific terms such as medical or legal terms.
• Vocabulary Filtering 
  • Allows you to create a list of words to filter from the transcript.
  • Useful for blocking profanities.
• Multiple speaker recognition
  • Supports identifying up to a maximum of ten speakers.
• Capable of transcribing low-fidelity and high-fidelity audio files.
• Uses machine learning to provide punctuation and grammatical formatting, making the transcription output immediately usable.
• It adds timestamps to every word, making it easier to use for movie subtitles.
• Includes confidence scores at each result so you can easily pinpoint the sections where further editing is required.
• Transcribe Medical can automatically identify Protected Health Information (PHI). Amazon Transcribe Medical is a HIPAA-eligible automatic speech recognition service.

Amazon Transcribe Pricing

• Charges batch and streaming transcription jobs at a monthly rate of $0.0004 per second.
• Billed in 1-second increments
• Minimum request charge of 15 seconds.

Note: If you are studying for the AWS Certified Machine Learning Specialty exam, we highly recommend that you take our AWS Certified Machine Learning – Specialty Practice Exams and read our Machine Learning Specialty exam study guide.

Amazon Transcribe Cheat Sheet References:

https://aws.amazon.com/transcribe/faqs/
https://aws.amazon.com/transcribe/features/
https://docs.aws.amazon.com/transcribe/latest/dg/how-it-works.html
https://aws.amazon.com/transcribe/pricing/