Edexcel GCSE Computer Science 2020

2.2.3: understand how analogue sound is represented in binary (amplitude, sample rate, bit depth, sample interval)

Keywords:

Data

Test your self on these keywords and definitions using the games below or Play random game

Keyword	Definition
amplitude	indication of how loud or quiet a sound is when it is sampled. Distance up or down from the horizontal axis on a diagram showing sound.
analogue sound	a continuous audio signal
bit depth	the number of bits used to record each sample
digital sound	an audio signal that has been sampled at regular intervals
sample interval	the time between each sample (1 / sample rate)
sample rate	the number of samples recorded every second (measured in Hz)

All learning objectives

Keyword games:

BugZap

Connect the wires to complete the circuit and zap the bug. The faster you choose the right keyword, the more points you get for zapping the bug!

Crossword

Use the clues to guess the keywords and fill in the blank spaces on the crossword

Eliminate

Click on the keywords that do not match the definition

Flappy Word

Click to jump. Collect a letter each time you pass a pipe

Hangman Definitions

Guess the letters of the definition

Hangman Keywords

Guess the letters of the keyword

Jumble Keyword

Rearrange the letters of the keyword into the right order

Random

Choose a game at random

Snake

Control the snake to eat each letter of the keyword in order

TypeRace

Type out the definitions as fast as you can

Wordsearch

Find the words that match each definition

Play Random Game

Resources:

CnD Sound

Sound

Explore this picture of a sound wave