WorksheetsCoding Systems 2 (analogue & digital data, sound files, MID)
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
What is the primary difference between analogue and digital data?
a)
Analogue data is continuous, while digital data is discrete.
b)
Analogue data is discrete, while digital data is continuous.
c)
Analogue data cannot be converted to digital.
d)
Digital data has no noise, while analogue data is perfect.
2.
What does an ADC (Analogue to Digital Converter) do?
a)
Converts digital signals to analogue signals.
b)
Converts analogue signals to digital signals.
c)
Changes the sample rate of digital data.
d)
Converts sound waves into MIDI data.
3.
Which of the following is NOT a function of a DAC (Digital to Analogue Converter)?
a)
Converting digital data into an analogue signal.
b)
Reproducing sound from digital formats.
c)
Converting analogue sound waves into digital data.
d)
Generating audio signals from digital sources.
4.
What does the term "sampling rate" refer to in the context of digital sound files?
a)
The number of bits used to store each sample.
b)
The number of times per second a sound is sampled.
c)
The volume level of each sample.
d)
The total number of samples in a file.
5.
How does increasing the sample rate affect the quality of a digital sound file?
a)
Increases the number of samples taken per second, improving sound quality.
b)
Decreases the number of samples taken per second, improving sound quality.
c)
Increases the number of bits used for each sample, improving sound quality.
d)
Decreases the storage size required for the file.
6.
Which of the following defines "sample resolution" in digital audio?
a)
The total number of samples in the file.
b)
The number of bits used to represent each sample.
c)
The number of times the sound is sampled per second.
d)
The duration of the audio clip.
7.
Which of the following factors directly impacts the file size of a digital sound file?
a)
The number of channels, sample rate, and sample resolution.
b)
The bit depth and the loudness of the sound.
c)
The compression ratio and sample duration.
d)
The type of speakers used to play the sound.
8.
What is MIDI primarily used for?
a)
Storing raw audio files for playback.
b)
Transmitting musical performance data, such as notes and velocity.
c)
Recording digital sound with high sample rates.
d)
Converting analogue sound into a digital format.
9.
Which of the following statements is true about MIDI files?
a)
MIDI files contain actual sound recordings.
b)
MIDI files store instructions for how music should be played.
c)
MIDI files have larger sizes compared to standard audio files.
d)
MIDI files are only used in analogue synthesisers.
10.
If a digital sound file has a sample rate of 44.1 kHz and a 16-bit sample resolution, what does this mean?
a)
The sound is sampled 16 times per second, with 44.1 bits used per sample.
b)
The sound is sampled 44.1 times per second, with each sample containing 16 bits of data.
c)
The sound is sampled 44,100 times per second, and each sample contains 16 bits of data.
d)
The sound is sampled 16 times per second, with each sample being 44.1 bits in size.
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