a visual representation of a sound file, showing how the amplitude of sound varies over time

a single stream of audio used to reproduce sound

produces the same sound in both left and right speakers/headphones

presents sound separately for the left and right speakers/headphones

Editing sound

Computing

Representing images with binary data

File size of digital images

Manipulating digital images

Representing sound with binary data

File size and compression

In this unit, pupils will focus on digital media such as images and sounds, and discover the binary digits that lie beneath these types of media. They will explore how images and sound can be manipulated and consider the link between quality of images and sound and the resulting file size.

Data representation: images and sound

Name the software used to edit and manipulate sound.

Arrange the following steps for editing a sound file.

What is the impact of higher sample rate on sound quality?

MP3 files are larger in size than WAV files.

WAV files are typically larger than MP3 because they are higher quality.

MP3 files are typically higher quality compared to WAV files.

Which of the following statements is true about MP3 and WAV files?

What is the smallest unit of data in a computer system?

What does the term 'intensity' refer to in digital images?

What effect does increasing sample resolution have on a sound file?

Arrange the following in order of increasing file size.

Editing sound

Lesson outcome