COMPUTER NETWORKING

MULTIMEDIA AND QUALITY OF SERVICE

MULTIMEDIA DATA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Several options like this are examples of:-Text is encoded in ASCII-An audio data stream in PCM (Pulse Coded Modulation)-Image in JPEG format-Video in MPEG format
A
Representaton media
B
Presentation media
C
Transmission data
D
Perception media
Explanation: 

Detailed explanation-1: -Encoding. Encoding is the process of representing the sampled values as a binary number in the range 0 to n. The value of n is chosen as a power of 2, depending on the accuracy required. Increasing n reduces the step size between adjacent quantisation levels and hence reduces the quantisation noise.

Detailed explanation-2: -LPCM audio formats include WAV, AC3 AES3, Au file format, raw audio, and MPEG-audio. Note that LPCM is also a part of the DVD and Blue-Ray sound as well as video recording standards.

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