Data storage - sound

What is sample rate measured in?

• Bits per second (bps)

• Hertz (Hz)

• Megabits per second (Mbps)

Which of the following is not true if you increase the sample rate (4-6)

• Better quality of recording

• Needs greater storage space

• The compression rate increases

• Decrease in quality

What is meant by the term bit depth (4-6)

• The number of samples taken per second

• The amplitude of each sample

• The number of bits used per second of audio

• The number of bits used to store each sound sample

What piece of hardware would you use to input sound into a computer? (1-3)

• Speaker

• Analogue to digital converter

• Microphone

• Earphones

What is measured when the wave is sampled?

• Amplitude

• Hertz

• Bit rate

• Frequency

If you increase the bit depth of an audio file, you increase the quality

• True

• False

The amplitude of a sound wave is...

• The height of the wave

• The frequency at which it is sampled

• The speed at which it travels through air

• The sound's frequency