Polycom HDX 4500 - Page 20

17
Test 6 (H.264): Close up head (nodding)
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
3
1
1
1
BLR
3
2
2
1
CLR
1
1
1
1
JRK
1
1
1
1
Test 7 (H.264): Close up head (shaking side to side)
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
4
2
1
1
BLR
4
3
2
2
CLR
1
1
1
1
JRK
1
1
1
1
Test 8 (H.264): Medium close up, slow zoom out to three shot
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
3
1
1
1
BLR
3
2
1
1
CLR
1
1
1
1
JRK
2
1
1
1
Test 9 (H.264): Three shot, quick zoom in to medium close up centre person
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
3
1
1
1
BLR
3
2
1
1
CLR
1
1
1
1
JRK
2
1
1
1
Test 10a (H.264): Turntable speed 1
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
2
1
1
1
BLR
1
2
1
1
CLR
2
1
1
1
JRK
1
1
1
1
Test 10b (H.264): Turntable speed 2
Subjective Impairments H.323
384 kbit/s
768 kbit/s
2.0 Mbit/s
4.0 Mbit/s
BLK
2
1
1
1
BLR
2
2
2
1
CLR
2
2
1
1
JRK
2
2
1
1