Which AWS service transcribes customer call audio for analysis?
A company is building a contact center application and wants to gain insights from customer conversations. The company wants to analyze and extract key information from the audio of the customer calls. Which solution meets these requirements?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The question tests your ability to match the correct AI service to the input format; the trap is confusing text analysis with audio transcription, as Comprehend works on text and Transcribe works on audio.
This AIF-C01 question tests the use of Amazon Transcribe to convert customer call audio into text, which is the necessary first step for extracting insights. Community consensus is B, as Transcribe is the AWS service designed for audio-to-text transcription.
Choosing D (Amazon Comprehend) because it is used to extract information from text, while forgetting that the source is audio and must first be transcribed before any text analysis can occur.
Community Discussion (10 comments)
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Expert Analysis
Why the Answer Is Correct
Amazon Transcribe is purpose-built to convert speech in audio files, such as customer call recordings, into written text. This transcription is the foundational step for gaining insights from conversations, allowing further analysis like keyword extraction, sentiment, and topic detection. As comment [1] explains, the text can then be analyzed further to extract key information, making Transcribe the appropriate solution for the stated requirement.
Why the Other Options Are Wrong
A (Amazon Lex) is a conversational chatbot service, not a transcription tool, so it does not analyze existing call recordings. C (SageMaker Model Monitor) monitors machine learning models for drift, not audio files. D (Amazon Comprehend) is trained to extract insights from text, but it cannot process raw audio directly; as noted in comment [9], Comprehend only works on text data, so it would require a transcription step first.
Community Comment Notes
The majority of comments support B, emphasizing that the key phrase is "from the audio of the customer calls," as comment [8] points out. Comment [6] adds that once the audio is transcribed, the text can be further processed to extract insights. Even a dissenting comment [4] acknowledges that in real-world workflows, you would run Transcribe first and then Comprehend, reinforcing that Transcribe is the immediate answer to the exam question.
Official Reference
Exam Strategy
Read the question carefully to identify the input type: if it mentions audio or call recordings, choose Amazon Transcribe. Remember that Comprehend is a downstream step for text analysis only; when both audio-to-text and text analysis are mentioned, the first required service is Transcribe.
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