Polycom VSXTM 6000 User Manual page 18

Test 12a (H.263): Zoom in and zoom out of 'A-to-Z' map
Subjective Impairments H.323
BLK
BLR
CLR
JRK
Test 12b (H.264): Zoom in and zoom out of 'A-to-Z' map
Subjective Impairments H.323
BLK
BLR
CLR
JRK
Test 13a (H.263): Text legibility (% of screen height) at viewing distance approx. 5 x
screen diagonal
Legibility H.323
20 pt (3.5%)
16 pt (3%)
14 pt (2.5%)
12 pt (2.3%)
Test 13b (H.264): Text legibility (% of screen height) at viewing distance approx. 5 x
screen diagonal
Legibility H.323
20 pt (3.5%)
16 pt (3%)
14 pt (2.5%)
12 pt (2.3%)
Test 14a (H.263): Video with several vision cuts
Subjective Impairments H.323
BLK
BLR
CLR
OP
SCR
JRK
768kbit/s
2
3
1
2
384kbit/s
3
3
1
3
768kbit/s
Yes
Yes
No
No
384kbit/s
Yes
Yes
No
No
768kbit/s
2
2
1
1
2
1
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