sound

What is sound?

• Something that is picked up by a microphone when generated by air.

• A wave of air that, when it hits the ear, produces a noise.

• Vibration that propagates as an audible wave of pressure through the air

• The level of air moved when someone speaks or uses a microphone.

A sound is analogue?

• True

• False

• Sometimes

What is the Sample Rate?

• How many times we have to play a sound in order for it to be high quality.

• The speed of a signal going into a computer or microphone

• How many different samples we take of a file.

• How often per second we sample an analogue sound

What is Bit Depth

• The file size of the sound when saved in digital form

• The amount of times per second we take a snapshot of a sound

• The amount of detail captured with each sample of a file

• How many times we sample a sound

What is Bit Depth

• The file size of the sound when saved in digital form

• The amount of times per second we take a snapshot of a sound

• The amount of detail captured with each sample of a file

• How many times we sample a sound

What is the Sample Rate?

• How many times we have to play a sound in order for it to be high quality.

• The speed of a signal going into a computer or microphone

• How many different samples we take of a file.

• How often per second we sample an analogue sound

How many samples are taken of a sound wave each second if the sample rate is 50000Hz?

• 5

• 50

• 50000

• 500000

The higher the sample rate, the better the quality

• True

• False

• Sometimes

The higher the sample rate, the better the quality

• True

• False

• Sometimes

Which of these numbers is represented by 4 bits?

• 10111

• 00101

• 0100

• 10011001