Question 14
Domain 1: Fundamentals of AI and MLAn animation company wants to provide subtitles for its content. Which AWS service meets this requirement?
Correct answer: C
Explanation
Amazon Transcribe is the AWS service for “speech-to-text conversion” and “converts audio to text.” Subtitles require turning spoken dialogue into text, so Transcribe fits the workflow for meeting transcription, call analysis, and captioning.
Why each option is right or wrong
A. Amazon Comprehend
Amazon Comprehend analyzes text for sentiment, entities, and key phrases; it does not convert audio to text.
B. Amazon Polly
Amazon Polly converts text to lifelike speech; it is text-to-speech, not speech-to-text.
C. Amazon Transcribe
Amazon Transcribe is the AWS managed speech-recognition service named in the AWS documentation for converting spoken audio into text, which is the necessary first step for generating subtitles/captions from dialogue. The service supports real-time and batch transcription, with features such as automatic punctuation and speaker identification, so it fits a subtitle workflow directly rather than requiring a custom ML build.
D. Amazon Translate
Amazon Translate performs neural machine translation across languages; it translates text, not audio transcription.