Sound – where does it come from?


– where does it come from? A sound is created when the particles in a medium (usually air in our world) are set moving and forced out of a state of rest.

Education, music

Sound pressure and decibels

Pressure variations in the air achieved by the sound waves.



Sound waves move at a certain speed past a fixed point.

Normal hearing. Generating and understanding speech.

Generating and understanding speech

Speech occurs by air being forced past the vocal chords, which then begin to vibrate.

What are acoustics?

What are acoustics?

The term for the study of sound and how sound is experienced

Sound and surfaces

What are room acoustics?

How sound behaves in a room.

The shape, size, surface finish and furnishings of a room all determine its acoustic properties.

Room acoustic design

Consider the shape, size, surfaces and furnishings.