Digital Audio 1

Sound is made up of

• Compression waves

• Mexican waves

• Tranverse waves

• Noise waves

The number of waves that pass per second is called the?

• Frequency

• Amplitude

• Wavelength

• Markov Chain

The height of the wave is known as the...

• Amplitude

• Frequency

• Wavelength

• Tallitude

An individual measurement of the height of a wave is called a...

• Sample

• Pixel

• Blob

• Byte

The frequency of a wave affects the...

• Pitch

• Volume

• Quality

• Chances of the listener being crowned emperor of the universe

The amplitude of the wave affects the...

• Volume

• Pitch

• Quality

• Amount of money you will find tonight down the back of the sofa

The sampling frequency of a wave means...

• The number of times per second that the amplitude is measured

• The number of times per second that the frequency is measured

• The number of times per minute that the amplitude is measured

• The number of dogs per crocodile that the space-robots are demolished.

Sampling frequency is measured in...

• Hertz

• Hurts

• Metres per second

• Herts

What effect would reducing the sampling frequency have on the quality of the sound?

• Reduces the quality

• Increases the quality

• No effect

• Makes every wave sound like a crocodile

This waveform is sampled at 14Hz. How many samples will there be in TWO seconds of audio

• 13

• 14

• 28

• 255