MP3 player

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/mp3-player

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. What is the device category?Portable media player
2. What is the key components?Digital Signal Processor (DSP), Digital-to-Analog Converter (DAC), flash memory, rechargeable battery

MPEG-1 Audio Layer III (MP3): A widely adopted digital audio compression standard that significantly reduces file size with minimal perceived loss in quality.
Psychoacoustics: The study of how humans perceive sound, used in MP3 compression to remove inaudible audio components.
Lossy Compression: A data compression method that reduces file size by discarding some information, which cannot be recovered.
Flash Memory: A type of non-volatile computer memory that can be electrically erased and reprogrammed, commonly used in portable electronic devices.