Audio

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/audio

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who invented Audio?1857
2. What is the inventor of phonograph?Thomas Edison
3. What is the primary medium for modern audio?Digital signals and streaming
4. What is audio and why is it important?Audio is how we hear sounds like music and whispers. It helps us talk, learn, and enjoy entertainment.
5. How did people first record sound?In 1857 a device called a phonautograph drew sound waves but couldn't play them back. Later, in 1877, Edison’s phonograph could both record and play sound.

Transducer: A device that converts energy from one form to another, like sound to electricity.
Analog Audio: Sound represented by a continuous electrical signal that directly mimics the sound wave.
Digital Signal Processing (DSP): Using computers to manipulate and analyze digital audio signals.