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Worksheets1.2.4 Data Storage - Representation of Sound
Total questions: 10
Worksheet time: 6mins
What is the sample rate?
The number of times a sound wave is sampled per second
The number of bits used to store each sample
How loud a sound is
The size of the sound wave
What is sample rate measure in?
Bits
Hertz
GB
amps
What is used to convert a sound wave in to a digital format?
A sound wave converter
A router
An amplitude to digital converter
Analogue to digital converter
What is the formula for finding a sound files size?
size = rate * resolution * seconds
size = rate * resolution * minutes
size = amplitude * bits * seconds
size = sample * frequency * bits
What is amplitude?
Number of samples taken
The number of bits per sample
The height of the sound wave
The pitch
What is the file size (in bits) of a sound with the following properties:
Sampling rate = 1,000Hz
Sample resolution = 16 bits
Length = 300 seconds
480 bits
4,800 bits
408,000 bits
4,800,000 bits
A sound has a file size of 17, 640 kilobytes. How much would this be in megabytes?
1.76 Mb
17.64 Mb
176.4 Mb
1764 Mb
What is the name of the process of capturing sound and converting it into digital form?
(a)
