Representing sound Flashcards
1
Q
Analogue signals don’t have…
A
defined range
2
Q
Analogue signals are constantly
A
changing
3
Q
what is sampling?
A
recording a signal at regular intervals
4
Q
what is sampling frequency?
A
The number of signals obtained per second
5
Q
Sampling frequency is measured in …
A
Hertz(Hz)
6
Q
Sample rate is also known as?
A
Sampling frquency
7
Q
The greater the sampling frequency…
A
The closer the digital audio is to the original but the greater the file size.
8
Q
What is sample size?
A
The number of bits available for each sample.
9
Q
Sample size is also known as..
A
bit depth or sampling resolution
10
Q
Formula for bit rate
A
bit rate(bps) = Sample rate(Hz) * sample size(bits)
11
Q
Formula for file size
A
File size(bits) = sample rate(Hz) * Sample size(bits) * Time(s)
