Final answer:
Voice recognition technology is highly useful when manual interaction is not possible, with hearing being essential to its functionality as it involves interpreting sound waves. The human ear's ability to detect pitch, loudness, and direction is crucial in voice recognition. Sound is also used in applications like ultrasound for medical imaging beyond the scope of hearing.
Step-by-step explanation:
Voice recognition technology is particularly appealing when an individual's hands or eyes are otherwise occupied. This technology allows users to interact with devices and systems through spoken commands, which can be essential in situations where manual interaction is impractical or unsafe, such as when driving or performing complex tasks.
Hearing plays a crucial role in voice recognition as it is the perception of sound. Sound waves are interpreted by the ear and the brain to understand spoken words. The human ear has a range and sensitivity that allow it to perceive variations in pitch, loudness, and direction, all of which are vital to recognizing and interpreting voice commands.
Applications of sound extend beyond hearing, such as in medical imaging where ultrasound is used. Ultrasound operates at a frequency beyond human hearing, but it is a powerful tool for creating images of internal body structures and is also used in therapeutic treatments.