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AI & Machine Learning · Foundational

Speech-to-Text (STT)

Converting spoken audio into written text; also called automatic speech recognition (ASR).

Definition

Modern ASR uses transformer models such as OpenAI Whisper and NVIDIA Parakeet and Canary. Cloud services include Amazon Transcribe, Azure AI Speech and Google Cloud Speech-to-Text, supporting diarization, custom vocabulary and streaming.

Exam tip

Transcribing calls or meetings points to a speech-to-text service such as Amazon Transcribe or Azure AI Speech.

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