ACorrect
Amazon Polly
Correct. Amazon Polly is an AI service that converts text into natural speech (text-to-speech). It supports many languages and voices and can be used for article narration, voice guidance, and accessibility.
Which AWS service is BEST suited for converting written text into an audio file read aloud in a natural voice?
1 / 1
Select an answer
CorrectA
Explanation
Selecting an AI service that converts text into speech.
- 1「written text」The input is text
- 2「read aloud in a natural voice」Speech synthesis = Polly
- 3「into an audio file」The output of text-to-speech
BIncorrect
Amazon Transcribe
Amazon Transcribe instead converts speech into text (speech recognition / transcription).
It is the opposite direction of this question, which converts text into speech, so it is incorrect.
CIncorrect
Amazon Lex
Amazon Lex is a service for building chatbots and voice bots that interact through voice or text.
Understanding and responding to dialogue is its role, and the speech synthesis (TTS) that converts written text into a natural audio file is the role of Polly, so it is incorrect.
DIncorrect
Amazon Translate
Amazon Translate is a service that translates text into text in another language.
Its output is translated text, and the requirement to convert text into an audio file is handled by the speech synthesis of Polly, so it is incorrect.
Key Takeaway
Polly = text to speech (speech synthesis, TTS) / Transcribe = speech to text (transcription). They are opposite directions, so remember them as a pair. Translation is Translate.