
Sound

Quiz
•
Computers
•
9th Grade
•
Hard
Jo Ali
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An audio file has 44,100 samples per second, bit depth of 24-bits and a channel. Estimate the file size for one second?
129.2 bits
129.2 bytes
129.2 KiB
129.2 MiB
Answer explanation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Estimate the file size of a 5-second audio file with 44,100 samples per second, bit depth of 24-bits and a channel.
646 bits
646 bytes
646 KiB
646 MiB
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are sound signals sampled?
To play sound via speakers or headphones.
To analyse sound quality
To compress sound files
To store in a computer
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is uncompressed file formats?
MP3
WAV
Ogg Vorbis
All of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is bit depth?
Number of bits available for each sample
Number of bits of data used to store data sampled every second.
Number of samples in a second.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following represents the calculation for estimating size of a sound file?
File size (sound) = Sampling rate (Hz) x bit depth (bits) x duration (second) x channels
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is analogue sound?
A sound signal after sampling.
A continuously varying signal.
A sound signal with different pitches.
A signal that can take only certain values.
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