multimedia part 2

Question 1

Computer information can be represented through audio, video and animation in addition to traditional media like (graphics) is ?

Answer 1

Multimedia

Question 2

What is animation ?

Answer 2

Pictures are manipulated to appear as moving
images

Question 3

Is one of the many still images which compose the complete moving picture ?

Answer 3

Frame

Question 4

Is the frequency (rate) at which consecutive images called (frames appear on a display ) ?

Answer 4

Frame rate

Question 5

A 20 second 30fps animation, how many frames?

Answer 5

Usually ( > 24 frames/sec -> standard 30)

Question 6

Used in television and movies to create effects are made of (CGI) ?

Answer 6

Computer animation

Question 7

What is the process of Tweening ?

Answer 7

Is generating intermediate frames between two key frames (images)
and
to give the appearance that the first image evolves smoothly into the second image

Question 8

Is a series of bitmap images when played back it creates the illusion of movement ?

Answer 8

Digital video
which determined by : Frame size : Width x Height (HD) video – 1280 x720
Bit depth and Frames per second (fps)

Question 9

Data compression ?

Answer 9

Is encoding information using fewer bits than the original representation

Question 10

Lossless ?

Answer 10

It is original representation can be recovered like ( WinZip, Win Rar)

Question 11

Lossy ?

Answer 11

Is recover a representation similar to the original one (more practical)
( high compression ratios)
Throw away less relevant parts of the data
(MP3, JPEG )

Question 12

Using a microphone to capture sound in an analog form (Electric Waves) is ?

Answer 12

Digital Audio

Question 13

Electric wave is converted into digital data by Audio digitizer (ADC) that has sound like ?

Answer 13

Sampled ( Digitally recorded )
Synthesized ( Generated)

Question 14

Synthesizer ?

Answer 14

Is an electronic instrument
that synthetically generates, creates, produces
example sounds using mathematical formulas

Question 15

Which instrument instead of generating sounds It uses recordings (or “samples”) ?

Answer 15

Samplers

Question 16

Visualizing a Sound Wave ?

Answer 16

By Repetitive oscillations of vibrations
Like Amplitude , Wavelength and Frequency

Question 17

Digital Sampling ?

Answer 17

An analog audio signal is continuous without
interruption ( stores it as a data file) ADC

A digital audio signal is sampled at regular intervals ( digital data converted to analog wave) DAC

Question 18

What is Audio Quality ?

Answer 18

It is sampling Rate: Number of samples taken per second (frequency) (Hz)

Question 19

It is used to represent a sample which measured in bits
and number of channels is ?

Answer 19

The sample size (Bit Depth)
Mono or stereo

Question 20

Audio Formats ?

Answer 20

WAV ( Uncompressed audio for windows )
MP3 ( 1/10 the size of the original)
WMA ( An alternative to MP3)
AAC ( apple’s alternative to MP3)
OGG Similar to MP3 ( open source and freely available )

Question 21

Text which contains links to other texts (Information linked in non-sequential ways) ?

Answer 21

Hyper text

Question 22

It’s not constrained to be text-based, it can include other media ( combines text) ?

Answer 22

Hypermedia

Question 23

Integration of digital media including electronic text, graphics and sound into a
structured digital computerized is ?

Answer 23

Interactive Multimedia