Designing the user interface: Text, colour, images, moving images and sound
Designing the user interface: Text, colour, images, moving images and sound

This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.

Free course

Designing the user interface: Text, colour, images, moving images and sound

1.6.2 Different types of sound

Sounds come in four categories.

  • Sound effects. Many UIs contain a range of warning beeps and reassuring sounds confirming that operations have been completed. These can include naturalistic sounds, such as the sound of a piece of screwed-up paper dropping into a waste paper basket.

  • Music. Many composers use computer systems to compose music, and programs such as games make extensive use of music. Short sequences of musical notes are also used in devices such as car alarms.

  • Speech. This is the most demanding of the categories, as speech recognition and speech generation are technically complex.

  • Ambient sounds. All the sounds the computer makes act as feedback. For example, the clicks of the CD-ROM and hard disk drives confirm that it is operating correctly. So important are these mechanical sounds that, in some systems, they have been recreated where they do not occur naturally. For example, in some handheld computers, the software generates a clicking sound when a key on the keyboard is pressed.

We look at the first three of these categories below, concentrating on the information that they can communicate to the user.

Activity 4

List five different sounds that you hear when you use your computer.


This will depend upon the computer that you are using. On my machine, I get mechanical sounds when I press keys on the keyboard and when I insert a CD-ROM. I also listen to music via the CD-ROM player. A short tune plays when I first switch on; and every now and then, when I make a mistake, I get a loud and irritating beep.


Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.

Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus