Amazon Polly Overview and Features
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Questions and Answers

What is the main purpose of Amazon Polly?

  • To transcribe speech into text
  • To analyze and interpret speech patterns
  • To create interactive voice assistants
  • To convert text into lifelike speech using deep learning (correct)

    • What is a lexicon in the context of Amazon Polly?

  • A rule-based system for generating speech
  • A dictionary that defines how to pronounce specific words or phrases (correct)
  • A set of pre-recorded voice samples
  • A tool for creating custom voice models

    • What does SSML stand for and what is its primary function?

  • Speech Segmentation Markup Language; to break down speech into individual units
  • Speech Syntax Markup Language; to define the grammatical structure of speech
  • Speech Stream Markup Language; to manage the flow of speech data
  • Speech Synthesis Markup Language; to provide instructions on how to pronounce text (correct)

    • Which of the following is NOT a voice engine option available in Amazon Polly?

    <p>Long-form (A)</p> Signup and view all the answers

    What is the primary benefit of using speech marks in Amazon Polly?

    <p>Providing information about the timing of words and sentences for lip-syncing and visual synchronization (B)</p> Signup and view all the answers

    Flashcards

    Amazon Polly

    A service that converts text into lifelike speech using deep learning.

    Lexicons

    Definitions for how specific text should be pronounced by Polly.

    SSML

    Speech Synthesis Markup Language for controlling speech output and pauses.

    Speech Marks

    Markers indicating where words or sentences start and end in audio.

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    Voice Engines

    Different types of voice engines used by Polly for speech generation.

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    Study Notes

    Amazon Polly Overview

    • Amazon Polly synthesizes lifelike speech from text using deep learning.
    • It's the opposite of Amazon Transcribe, which transcribes speech to text.
    • It creates applications that speak.
    • Example: Inputting "Hi, my name is Stephane, and this is a demo of Amazon Polly" will generate the speech.

    Advanced Features

    • Lexicons: Allows for custom pronunciations of words or phrases.

      • Example: specify that "AWS" should be pronounced as "Amazon Web Services".
      • Example: specify that "W3C" should be pronounced as "World Wide Web Consortium".

    • SSML (Speech Synthesis Markup Language): Provides markup to control how text is pronounced.

      • Example: SSML can create pauses, whispers, emphasis, and control the pronunciation of abbreviations.
      • Example: "Hello" followed by a break, "how are you?" will result in a pause after "Hello".

    Voice Engines

    • Different voice engines are available with varying characteristics.
    • Voice engines span from historical to newer neural, standard, long-form, and generative.
    • Newer engines produce more human-like voices.

    Speech Marks

    • Provides location of audio segments corresponding to words or sentences.
    • Important for functions such as lip-synching and highlighting spoken words in audio.
    • Provides location of audio segments corresponding to words or sentences together with the audio.

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    Description

    Explore the capabilities of Amazon Polly, a service that synthesizes realistic speech from text using advanced deep learning techniques. This quiz covers Amazon Polly’s voice engines, custom lexicons for pronunciations, and SSML for enhanced control over speech output.

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