Interlogix TruVision DVR 40, Руководство пользователя

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TruVision DVR 40 User Manual 67
4.
To select audio and/or video recording
You can select whether the recording is video only (default), or audio and video. If this option
is changed, you must reboot the TVR 40 to implement the change.
Go to the
Stream Type
list box and select one of the two options:
Option Description
Audio&Video Records both audio and video.
Video Records video only.
5.
To change the camera resolution
You can select one of four video resolutions. A high image resolution requires that a high bit
rate must also be selected. QCIF is the lowest resolution value and 4CIF the highest. If you
change this option, you must reboot the TVR 40 to implement the change.
Go to the
Resolution
list box and select one of the options listed: QCIF, CIF (default), 2CIF,
and 4CIF.
6.
To select the frame rate
You can select between several different frame rates. A low bit rate can be selected when
the frame rate is low.
Go to the
Record Rate/fps
list box. Use the arrow buttons to select one of the options listed:
Full (PAL is 25 FPS and NTSC is 30FPS), 20, 16, 12, 10, 8, 6 (default), 4, 2, 1, 1/2, 1/4, 1/8,
1/16.
7.
To select the maximum bit rate
See Table 11 for the recommended bit rate ranges by resolution option. The actual
maximum bit rate must be calculated from your camera, background, and image quality
requirements.
Table 11: Bit rate by resolution
Resolution Default bit rate Recording speed
4CIF 896 Kbps 8 fps
2CIF 896 Kbps 12 fps
CIF 1.0 Mbps Real time
QCIF 256 Kbps Real time
Go to the
Max Bit Rate
list box and select one of the options listed (bps):
32K, 48K, 64K, 80K, 96K, 128K, 160K, 192K, 224K, 256K, 320K (default), 384K, 448K,
512K, 640K, 768K, 896K, 1M, 1.25M, 1.5M, 1.75M, 2M, and “User defined“.
8. Select OK to confirm changes and return to the Recording menu.
9. When you have made all the changes required in the Recording menu, go to OK and press
Enter or left-click the mouse to save all changes and return to the main menu.