Sound Representation

Sound Representation

8th Grade

12 Qs

quiz-placeholder

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Sound Representation

Sound Representation

Assessment

Quiz

Computers

8th Grade

Practice Problem

Hard

Created by

Mr London

Used 10+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Digital sound always sounds better than analogue.

False
True

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The most common sampling rate for sound files is 44.1 khz.

True
False

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A microphone converts the changes in air pressure into voltage changes which are then digitised.

True
False

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The following is true about sampling rates:

They measure a number of snapshots of sound taken per second.
They are not as important as bit rates.
They are different for every song, depending on its loudness.

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Digital to Analogue Converter does this:

Converts a binary stored version of a recording to voltage changes that speakers can reproduce.

Takes voltage changes and digitises them for further processing and storage.

Amplifies the sound and makes it digitally clean.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is sample resolution?

The number of bits used to store each sample

The number of times a wave is sampled

How loud a sound is

How quiet a sound is

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

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