User Manual

Resolution Specifications
1476
The data rate (bandwidth) for Avid DNxHD resolutions is calculated per second for each frame
rate. For example, DNxHD 220 has a compressed data rate of 220 Mb/sec at 29.97 fps. DNxHD
185, which is an equivalent resolution, has a compressed data rate of 185 Mb/sec at 25 fps.
A good guideline for selecting a resolution is to use the Avid DNxHD resolution that matches the
megabit data rate of the acquisition format. For HDCAM-originated material, for example, select
DNxHD 145, which closely matches the data rate of HDCAM but provides better mastering
results and uses significantly less storage. The following table compares Avid HD formats to the
HDCAM format.
1:1 10-bit RGB HD
1:1 10-bit HD
1:1 HD
DNxHD 220 X
DNxHD 220
DNxHD 145
DNxHD 100
DVCPRO HD
XDCAM HD 50
AVC-Intra 100
XAVC Intra 100
Apple ProRes 422 MXF
Apple ProRes 422 HQ MXF
Apple ProRes 422 LT MXF
Apple ProRes 422 Proxy MXF
Apple ProRes 4444
J2K 1080i
AVC-Intra 50
XAVC Intra 50
DNxHD TR-145
10
10
8
10
8
8
8
8
8
10
10
10
10
10
10
10
10
10
10
8
1080i/59.94 1920 x 1080
1440x1080
29.970 1989
1243
994
220
220
145
100
100
50
100
100
147
220
102
45
330
150
50
50
145
Resolution Bits
Project
Format Frame Size Frames/sec
Megabits per
second
(Mb/sec)
Avid DNxHD 36 Avid DNxHD 145 Avid DNxHD 220 Sony HDCAM
Bit Depth 8-bit 8-bit 8-bit and
10-bit
8-bit
Sampling 4:2:2 4:2:2 4:2:2 3:1:1
Bandwidth 36 Mb/sec 145 Mb/sec 220 Mb/sec 135 Mb/sec