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physical computing. This activity provides a practical application of voice recognition and introduces
the basics of AI-driven speech control.

Applications of Voice Recognition

1. Virtual Assistants: Devices like Siri, Alexa, or Google Assistant use voice recognition to
understand and respond to your spoken commands. You can ask them to play music, set alarms,
or give you the weather forecast.
2. Hands-Free Control: Voice recognition allows you to use your phone or smart devices without
touching them. For example, you can send a text message, make a call, or search something on
the internet just by speaking.

3. Smart Home Devices: With voice recognition, you can control smart home devices like lights,
thermostats, or door locks. You can say things like “Turn off the lights” or “Set the temperature
to 72 degrees.”

4. Voice Authentication: Some apps and devices use voice recognition to verify your identity. This
means you can log in to your account or unlock your phone just by speaking a specific phrase.

These applications make everyday tasks easier and more convenient by letting us use our voice to
control technology.

exercise

A. Tick ( ) the correct option.
1. What does AI stand for?

(i) Automatic Intelligence (ii) Artificial Intelligence

(iii) Advanced Interaction (iv) Automatic Interaction
2. What is the purpose of Google Teachable Machine?

(i) To play games

(ii) To create machine learning models easily

(iii) To design graphics

(iv) To control robots
3. Which device is used to recognize hand gestures in this unit?

(i) Laptop (ii) Microbit

(iii) Smartphone (iv) Tablet
4. What is voice recognition?

(i) Understanding written text (ii) Understanding human speech

(iii) Recognizing images (iv) None of these

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