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Preparations
Camera mode, Monitor mode, Teleconference mode
Bitrate (kbps)
54 64 76 91 108 128 160 192 224 256 288 320 352 384 424 460 512 640 768 1000 1200 1500 1700 2000
Actual frame rate
H 3 3 3 6 6 6 6 15 15 15 15 15 15 15 30 30 30 30 30 30 30 30 30 30
(fps) M 2 2 2 5 5 5 5 10 10 10 10 10 10 10 15 15 15 15 15 15 15 15 15 15
L 1 1 1 3 3 3 3 6 6 6 6 6 6 6 10 10 10 10 10 10 10 10 10 10
audio rate (bps) 16k 32k
Display bar color Blue Green Yellow Red
About Frame Rate
• When the Video Frame Rate is set to High (H), Mid (M) or Low (L), the value of frame rate will be as follows,
depending on the selected bitrate.
• The audio rate will be as shown below.
When the audio format is AAC-LC
Bitrate Audio bitrate (kbps)
Larger than 512kbps 128 (Max)
512kbps or less 96 (Max)
When the audio format is G.726
Bitrate Audio bitrate (kbps)
Larger than 160kbps 32 (Constant Bitrate)
160kbps or less 16 (Constant Bitrate)
ISMA Server mode
Bitrate (kbps)
54 64 76 91 108 128 160 192 224 256 288 320 352 384 424 460 512 640 768 1000 1200 1500 1700 2000
Actual frame rate
H –––––––––6 6 10 10 15 15 15 15 30 30 30 30 30 30 30
(fps) M –––––––––5 5 6 6 10 10 10 10 15 15 15 15 15 15 15
L –––––––––3 3 5 5 6 6 6 6 10 10 10 10 10 10 10
audio rate (bps)
–
96k 128k
(–: Cannot be set)
Cautions when changing settings
• To check current communication, refer to “Telnet Settings” on page 53 and execute the “stat” command.
• Do not change settings during CF recording. Malfunction may occur as a result.
• Set values in this page are default values. Working ENCODER PARAMETERS can be changed by request from
other units. Working values are displayed in this page during communication, and default values are displayed
during stop. If same settings are used to each units, such confusion can be avoided. Same settings are recom-
mended to avoid problems during automatic recovery after power on.
Memo
• When in the Teleconference mode or Monitor mode, set Bitrates for all DM-NC40 units so that they have same
color on the bitrate select bar.
• When setting a high bit rate, the video may not play back smoothly depending on the input video. However, this
is not a malfunction of the unit. If keeping frame rate is more important than picture quality, lower the bitrate.
When bitrate and frame rate settings are low, interval of video frames becomes long and delay time looks to be
long.
• When complicated video source is inputted, video delay become ling for while.