NEW
Font size
WorksheetsKS4_Sound Representation
Total questions: 10
Worksheet time: 5mins
What unit 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?
Better quality of recording
Needs greater storage space
Larger file size
Decrease in quality
What is meant by bit depth?
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
Which of the following is true if you decrease the sample rate?
File size increases
Sound quality increases
Sound quality decreases
Number of sound samples taken per second increases
What is measured when the wave is sampled?
Amplitude
Hertz
Bit rate
Frequency
What sample rate is used for CD quality sound?
44,100 Hz
88,200 Hz
22,100 Hz
The purpose of a Digital to Analogue converter is to…
convert binary data into analogue form so we can hear it via a speaker
convert sound waves into binary so it can be understood by a computer
What piece of hardware would you use to input sound into a computer?
Digital to analogue converter
Microphone
Analogue to digital converter
Speaker
If you increase the bit depth of an audio file then you increase the sound quality?
True
False
The amplitude of a sound wave is…
how high the wave is from the crest or trough
the frequency at which it is sampled
the speed at which it travels through air
