Question 1

Aspect ratio

Accepted Answer

The aspect ratio is the ratio of the width of an image or screen to its height, commonly expressed as two numbers separated by a colon (e.g., 16:9).

Question 2

HD format

Accepted Answer

HD stands for "high definition," which refers to a resolution that is higher than standard definition.

Question 3

Interactive media

Accepted Answer

Interactive media is defined by its ability to respond to user actions, making choice A correct. Choices B and C, linear media and print media, do not inherently possess interactive capabilities.

Question 4

Sound wave

Accepted Answer

Sound waves are pressure waves, which means they are produced by a vibrating object causing variations in the pressure of the surrounding medium (such as air, water, or solids). These variations in pressure travel through the medium as waves.

Question 5

Type of Audio visual media

Accepted Answer

Web casting is a form of audiovisual media where content is distributed over the Internet using streaming media technology.

Question 6

MIDI

Accepted Answer

MIDI stands for Musical Instrument Digital Interface, a technical standard that describes a protocol, digital interface, and connectors that allow a wide variety of electronic musical instruments, computers, and other related devices to connect and communicate with one another.

Question 7

Image compression

Accepted Answer

Image compression reduces the amount of data required to represent an image, which is achieved by eliminating redundant and irrelevant information, thus making the image file size smaller without necessarily altering its dimensions (height and width) or physical size.

Question 8

A quality of Digital Image is measured by

Accepted Answer

The quality of a digital image is often measured by its dpi (dots per inch), which indicates the resolution or the amount of detail the image holds. Higher dpi values typically signify higher quality images with more detail.

Question 9

DPI

Accepted Answer

DPI stands for Dots Per Inch, which is a measure of spatial printing or video dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm). Thus, it is a resolution measurement.

Question 10

In two dimensional viewing we have?

Accepted Answer

The answer of In two dimensional viewing we have?
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Question 11

Distortion

Accepted Answer

Distortion in audio refers to the alteration of the original sound, often resulting in a fuzzy or unclear output, rather than specifically high or low sound levels.

Question 12

Unit of frequency

Accepted Answer

The unit of frequency is Hertz (Hz), which measures the number of cycles per second of a periodic phenomenon.

Question 13

A decibel is one tenth of a ____________________________

Accepted Answer

A decibel is one tenth of a bel, a unit of measurement for sound intensity named after Alexander Graham Bell.

Question 14

Radio is categorized as a ___________________ media

Accepted Answer

Radio is considered a mass media because it reaches a large audience simultaneously through the broadcast of audio content.

Question 15

DAB

Accepted Answer

Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services, used in many countries around the world.

Question 16

Sound is transmitted through gases, plasma, and liquids as

Accepted Answer

Sound is transmitted through gases, plasma, and liquids as longitudinal waves, where the particle displacement is parallel to the direction of wave propagation.

Question 17

Dynamic media

Accepted Answer

Dynamic media refers to media content that can change or be interacted with by the user, making interactive media (A) the correct choice. Linear and print media do not typically offer this level of interactivity.

Question 18

Digital sound

Accepted Answer

Digital sound involves encoding audio signals into a digital format, which means converting the analog waves into digital data that can be processed, stored, and transmitted by electronic devices.

Question 19

Ribbon microphone

Accepted Answer

Ribbon microphones work by having an electrically conductive ribbon (usually made of aluminum, duraluminum, or nanofilm) suspended between the poles of a magnet. When sound waves hit the ribbon, it vibrates within the magnetic field, generating an electrical signal that corresponds to the sound waves.

Question 20

Bit depth

Accepted Answer

Bit depth refers to the number of bits of information in each sample of audio, determining the audio resolution or the precision in capturing the sound's amplitude at a given moment.

Quiz 2: Audiovisual and Sound Technical Terms