MLS-C01 Question 304
Single answerA company wants to create an application that allows visually impaired users to listen to dynamically generated text content such as news articles and emails. The application must support multiple languages, provide flexibility in voice selection, and allow customization of speech rate and tone. Which feature of Amazon Polly would best meet these requirements?
- A
Amazon Polly's Neural Text-to-Speech (NTTS)
- B
Amazon Polly's Custom Voice
- C
Amazon Polly's Standard Voices
- D
Amazon Polly's SSML (Speech Synthesis Markup Language) support
Show answer and explanation
Correct answer: D
Explanation
Amazon Polly's SSML (Speech Synthesis Markup Language) support allows developers to fine-tune speech delivery by adjusting elements like pitch, rate, pauses, and emphasis. This makes it the most appropriate feature for creating a highly customizable and user-centric experience for visually impaired users. While NTTS and Custom Voice provide other valuable functionalities, they do not address the need for dynamic adjustments to speech delivery in the same way SSML does.
- A. Incorrect.
Neural Text-to-Speech (NTTS) can improve the naturalness and expressiveness of speech but does not directly provide customization of speech rate or tone.
- B. Incorrect.
Custom Voice allows the creation of unique voices for brand identity but is not relevant for dynamically adjusting speech rate or tone.
- C. Incorrect.
Standard Voices provide basic speech synthesis but lack advanced customization features such as adjusting speech rate, pauses, or tone.
- D. Correct.
SSML support enables developers to control speech rate, pitch, volume, and other elements, making it the best choice for customizing speech in applications for visually impaired users.