AIF-C01 Practice Question 73: Real Time Voice Assistant

AWS Certified AI Practitioner (AIF-C01) · Test 8 · question 3 of 10

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A travel company wants a phone assistant that listens to a caller, answers in a natural voice, copes with being interrupted mid-sentence without losing the thread of the conversation, and responds fast enough to feel like a real exchange. The team wants a single foundation model rather than chaining speech-to-text, a text model and text-to-speech. Which Amazon Nova model fits?

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Answer:

B. Amazon Nova Sonic

Amazon Nova Sonic *provides real-time, conversational interactions through bidirectional audio streaming* and *processes and responds to real-time speech as it occurs*. It accepts speech as input and returns speech with text transcriptions as output from a unified speech understanding and generation architecture, which is precisely the "one model, not a chain" requirement. AWS lists *graceful handling of user interruptions without dropping conversational context* among its capabilities (option B).

- A is wrong because Amazon Nova Micro's input modality is text only. It is the lowest-latency, lowest-cost model in the understanding family, but it cannot take audio at all. - C is wrong because Amazon Nova Reel is a creative model that generates *video* from text and image prompts. Nothing in a phone call is a video generation task. - D is wrong because Amazon Nova Canvas is a creative model that generates and edits *images* from text and image input.

Reference: Using the Amazon Nova Sonic Speech-to-Speech model

Practice Test 8 ›

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