Page 8 of total 94 pages
1.3 Major functions
1.3.1 Compression
Support 16- channel PAL/NTSC system video signal, use H.264 technology for video
compression, and support variable bit rate and variable frame rate
Support 16-channel audio signal with independent real-time compression for each channel of
audio signal, use G.726 technology for audio compression standard, and maintain steady
synchronization for sound and images
1.3.2 Video recording and storage/backup
Multiple record modes: manual recording, timing recording, alarm integration recording and
motion detection recording, in which motion detection and external alarm possesses
pre-recording and time delay functions
Multiplexing operation, which realizes independent and single real time record on each channel,
simultaneously realizes single-channel playback search, network monitoring and search files
search/download.
Maximum four built-in IDE figures, which may attach 1-8 hard disks with various capacities
Hard disk work management adopts non-working drivers sleep treatment, so as to reduce heat
emission and power consumption and prolong hard disk service life
Both coverage circulating record and non-circulating record are alternative for files on hard
disk
Provide hard disk backup for video information, and support storage and CD record (USB
burner, IDE burner) for USB devices (USB flash disk, portable hard disk)
1.3.3 Preview and playback
Support TV or VGA output connection
Display mode multiplexing (1/4/9/16) switch during the preview
Support OSD overlap and channel name overlap
Summary of Contents for HY-8004HC
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