User manual

Encoding Parameters
30 Harmony 2ES and 4ES
7. Files should be no less than 4 MB in size. If there are
files smaller than 4 MB, use an editor to combine them
into a larger file that is at least 4 MB in size.
Encoding Recommendations
1. Resolution:
• 704 x 480 or 720 x 480 in NTSC
• 704 x 576 or 720 x 576 in PAL
2. Closed GOP (Group of Pictures) with an “I-frame”
every 15 frames is recommended.
3. The recommended audio bit rate is 384 Kbps and a
sampling rate of 48 kHz.
Before encoding an entire project, play back the test
files using the original source tapes to confirm audio
level. This allows for calibration of the encoding system
by obtaining a standard audio level.
4. Program stream files should have one end code (00 00
01 b9) at the very end of the file. While the Harmony
can handle files without end codes, it is a good
encoding practice to include one.
5. The bit rate can affect the size of files used and the
ability to transfer them. The following are the
recommended bit rates for various types of video
content:
Recommendations Only
Because of the large number of encoders available, Focus Enhancements
provides this information as a recommendation only. It may be necessary to
perform testing to determine the best settings for the system in use.
Bit Rate Video Content
4 Mbps Good quality with low motion
6 Mbps Good quality with typical motion
Recommended
8 Mbps Good quality with high motion
10 Mbps Demanding content