Microsoft Azure AI Fundamentals (AI-900) Practice Exam

Which feature allows the extraction of direct speech from audio files?

1. Optical Character Recognition

2. Image Processing

3. Speech Recognition

4. Text Summarization

The correct answer is: Speech Recognition

The ability to extract direct speech from audio files is attributed to Speech Recognition. This technology converts spoken language into text by analyzing the audio signals and recognizing patterns corresponding to different phonetic sounds. It serves a variety of applications, including transcription services, voice commands, and assistive technologies, making it highly relevant when dealing with audio files. In contrast, Optical Character Recognition is focused on converting written text from images or scanned documents into machine-readable text. Image Processing involves techniques to manipulate or analyze images, but it does not directly engage with audio data. Text Summarization seeks to condense written content into shorter versions while retaining key information, which is not applicable in the context of direct speech extraction from audio files. Hence, Speech Recognition is the most suitable feature for this task.