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Multimedia elements and Digitization - Coggle Diagram
Multimedia elements and Digitization
Digital Multimedia Elements
audio :
audio files
digitised data
speech
any kind of audio signals
music
bit resolution and sampling rate
digitised audio file
Bit resolution
Amplitude
The higher number
More precise
Steveo
Right sound track
Left sound track
Mono audio
One sound track
Audi data
Uncompressed
Compressed
Audio file format
WAV
The most popular
MP3
video
Sequence of full-motion image
Sound track
Frame size
Very large
Frame size
Number of horizontal
Vertical pixels on each video picture
Format rate
Number of frames displayed per second
Duration
Play time of a video clip
Compression method
Charging the content
Reduction of quantity of data of video clip
The way of representation of video frames
Colour depth
Number of bits used to represent a pixel
Higher the frame size and frame rate
The better the video quality and larger frame size
Particular compression
Own specification of compression
Frame size
Frame rate
Video format
AVI
Uncompressed video
MPEG-1
MPEG-2
Compressed vide
WMV
graphics
Bitmaps
collection of colour dots
pixels arranged
pixel
smallest
computer screen
number of colour
display in a pixel
determined by the number of bits
larges
colour depth
the number larger
can display on the image
Vector Graphics
number of object
live
string of test
shape
mathematical formulae
shape
location
vector object
rescale
modify
file size
victor graphics
grow rapidly
example
Windows Metafile (WMF)
Shockwace Flash(SWF)
Analogue data and digital data
Characteristic
Efficiency on data storage
Low
Physical size of storage media
Cassette tape
Larger than
Corresponding digital storage media
Video tape
Efficiency on transmission
High rate of transmission error
Way of measurement
Measured
Continuous signals of amplitude
Frequency of the source
Accuracy of information
Accuracy depends on the sampling technique used
Repliction
Absolute replication is nearly impossible
Data is loss
In the replication process
Efficiency on data analysis
Low
Analogue content is difficult t search
Analyze
Reconstructed to produce and other informion
Mode of data access :
Most sequential access
Digital data
Audio
Quality of digital audio
The sampling rate
The bit resolution
The number of channels
Digital Audio files
Stored in a larger variety
WAV
MP3
WMA
RA
Sound card
An electronic circuit board
Record and reproduce ouput closer to the original one
Higher sampling rate
Bit resolution