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.

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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)

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.

Preparations

•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)

 

 

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.

33