You are a machine learning specialist working at a language translation software vendor. Your mobile app team would like to add live transcriptions to the company’s mobile language conversation application.
Which AWS services should you use to provide the live transcriptions feature to your mobile app?

Answer options:

A.Stream your audio data to Amazon Transcribe Streaming and use the StartTranscriptionJob API call to start a bidirectional HTTP stream that streams your audio to Amazon Transcribe. Amazon Transcribe then streams the transcription results to your application and your app code produces the live transcription.
B.Stream your audio data to Amazon Transcribe Streaming and use the StartStreamTranscription API call to start a bidirectional HTTP stream that streams your audio to Amazon Transcribe. Amazon Transcribe then streams the transcription results to your application and your app code produces the live transcription.
C.Stream your audio data to Amazon Transcribe Streaming and use the StartStreamTranscription API call to start a bidirectional HTTP/2 stream that streams your audio to Amazon Transcribe. Amazon Transcribe then streams the transcription results to your application and your app code produces the live transcription.
D.Stream your audio data to Amazon Connect Streaming and use the StartStreamTranscription API call to start a bidirectional HTTP/2 stream that streams your audio to Amazon Connect. Amazon Connect then streams the transcription results to your application and your app code produces the live transcription.

Answer: C
Option A is incorrect. The StartTranscriptionJob API is used for Amazon Transcribe in batch translation mode. You are building a real-time transcription service. Also, Amazon Transcribe operates using HTTP/2, not HTTP.
Option B is incorrect. Amazon Transcribe operates using HTTP/2, not HTTP.
Option C is CORRECT. Use the Amazon Transcribe Streaming service and its StartStreamTranscription API. It starts a bidirectional HTTP/2 stream that streams your audio to Amazon Transcribe. Then transcribe streams the transcription results to your application and your app code produces the live transcription to be displayed in your app user interface.
Option D is incorrect. Amazon Connect does not have a transcription feature.
Reference:
Please see the Amazon Transcribe developer guide titled Streaming Transcription.
Please see the Amazon Transcribe developer guide titled StartTranscriptionJob,
Please see the Amazon Transcribe developer guide titled StartStreamTranscription,
Please see the GitHub repository titled Amazon Connect Real-time Transcription Lambda.