To change the codec:
1
Press the 'menu' button
2
Press the 'record' soft button to open the record settings.
3
Navigate to the 'codec' setting using the arrow soft buttons and press 'change.'
4
Use the arrow soft buttons to select your preferred codec, then press 'set' to confirm
the change, or press the 'menu' button on the control panel to confirm the change and
return to the LCD home screen.
NOTE
Your Blackmagic Duplicator 4K must be updated to software version 1.1 or
above to change codecs. For more information on updating software see the
'Blackmagic Duplicator Utility' section in this manual.
Choosing the right codec
For the best compatibility, we recommend using the H.264 codec. That is why we have
made H.264 the default codec for Blackmagic Duplicator 4K.
H.265 is a great codec for high quality Ultra HD video at smaller file sizes, but is still
very new and so there may be less compatibility with computers and
playback equipment.
Both codecs have their advantages. Using H.265 will let you use cheaper SD storage,
as the bit rates and sizes of files will be lower for a given image quality. H.264 is a
good choice if compatibility is vital to your project.
Setting the Bit Rate
The three bit rate settings on your Blackmagic Duplicator 4K are low, medium, and high.
These let you choose how much data is written by the built in video encoder for each second of
video. The default bit rate setting is 'medium' for a high quality recording and a manageable file
size. However you can easily change that setting in the LCD menu.
To change the bit rate setting:
1
Press the 'menu' button.
2
Press the 'record' soft button to open the record settings.
3
Navigate to the 'bit rate' setting using the arrow soft buttons and press 'change'.
4
Use the arrow soft buttons to select your preferred bit rate, then press 'set' to confirm
the change, or press the 'menu' button on the control panel to confirm the change and
return to the LCD home screen.
NOTE
Higher bit rates result in higher quality recordings, but will fill a card faster or
require a bigger and more expensive card. However, reducing the data rate will
increase the time you can record on a card, but could reduce image quality to lower
than you desire.
It's worth recording some experiments using different bit rate settings to get just the
right amount of picture quality you need in the smallest file size.
Recording
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