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(ELEC360)quiz01a_sol.pdf
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Suggested solution for ELEC 360 Digital Media & Multimedia Applications Fall 2002 Quiz 1A
1.
Complementary color <132, 130, 129>

2.


Vout

3. Frequency masking. In the presence of a `strong signal, adjacent frequency components need higher volume to be heard. Signal at different frequencies can be played to map out the masking range of each band. If the amplitude of one band falls into the masking shadow of another band, the band can be ignored.
OR
Temporal masking. A strong signal can mask other signals just before (premasking) or after (postmasking). Premasking is usually shorter (due to memory of human auditory system) than postmasking, but also important. The Loud samples are located and samples within the shadow of the loud sound are ignored.
4.
Echoes with multiple delay paths.

5.
d. Code book

6.
5 bits for R, 6 bits for G, 5 bits for B.



7. Round up, round down or round to nearest integer are acceptable
10 40 70 100
45 80 115 150
80 120 159 199

8.


<0,33>, <0,21>, <5,1>, <5,9>, <10,7>, <2,5>, <6,2>, <27,1>
9.
Cancelled

10.
3 bits

11.
A BB C D D E F F G H H I JJ


All the frames are displayed at correct time slot.
Or A, A even + B odd, B, C, C even + D odd, D, E even + F odd, F, G, G even + H odd, H, I, I even + J odd, J
12. Any one of below:
a.
Frame rate

b.
Line period

c.
No of lines per field


13. 768