Polycom VSXTM 6000 User Manual
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Test 12a (H.263): Zoom in and zoom out of ‘A-to-Z’ map
Subjective Impairments H.323
768kbit/s
BLK
2
BLR
3
CLR
1
JRK
2
Test 12b (H.264): Zoom in and zoom out of ‘A-to-Z’ map
Subjective Impairments H.323
384kbit/s
BLK
3
BLR
3
CLR
1
JRK
3
Test 13a (H.263): Text legibility (% of screen height) at viewing distance approx. 5 x
screen diagonal
Legibility H.323
768kbit/s
20 pt (3.5%)
Yes
16 pt (3%)
Yes
14 pt (2.5%)
No
12 pt (2.3%)
No
Test 13b (H.264): Text legibility (% of screen height) at viewing distance approx. 5 x
screen diagonal
Legibility H.323
384kbit/s
20 pt (3.5%)
Yes
16 pt (3%)
Yes
14 pt (2.5%)
No
12 pt (2.3%)
No
Test 14a (H.263): Video with several vision cuts
Subjective Impairments H.323
768kbit/s
BLK
2
BLR
2
CLR
1
OP
1
SCR
2
JRK
1