Which device do e-learning applications typically use to help visually impaired users read digital content aloud?

Which device do e-learning applications typically use to help visually impaired users read digital content aloud?

• A. Projector
• B. Plotter
• C. Motion-sensing controller
• D. Voice synthesizer

Answer: (D)

When helping visually impaired learners access digital content in e-learning, reading aloud relies on text-to-speech technology. A voice synthesizer is the part that converts on-screen text into spoken words, allowing software like a screen reader to vocalize content, indicate punctuation, and help navigation. This audio output is what makes the material accessible without needing to see the screen. The other devices serve different roles: a projector displays visual content, a plotter prints physical graphs, and a motion-sensing controller handles input gestures, none of which provide spoken output.

When helping visually impaired learners access digital content in e-learning, reading aloud relies on text-to-speech technology. A voice synthesizer is the part that converts on-screen text into spoken words, allowing software like a screen reader to vocalize content, indicate punctuation, and help navigation. This audio output is what makes the material accessible without needing to see the screen. The other devices serve different roles: a projector displays visual content, a plotter prints physical graphs, and a motion-sensing controller handles input gestures, none of which provide spoken output.