MPEG/MJPEG frame grabber plus audio encoder | Model 314

Model 314 MPEG/MJPEG frame grabber plus audio encoder
  • Real time MPEG-4,2,1 MJPEG plus audio encoder
  • Built-in motion detection
  • Uncompressed preview through PC/104+
  • On screen display of text
  • Two synchronized audio input channels
  • Fast Windows stream player available


Sensoray's model 314 is a low-cost MPEG-4/2/1 and MJPEG frame grabber that captures full-frame (720 x 480) video at 30 frames per second. Uncompressed video is available through the PC/104+ bus for previewing. It also has two synchronized audio input channels and on-screen text display (OSD).

Advantages of Compression

MPEG and MJPEG data reduce the amount of memory required to store full-motion video. The compressed data requires a smaller transmission bandwidth. MJPEG data is typically compressed by a factor of 20, while MPEG-2 and -4 are compressed by a factor of 100. Image compression makes it possible to transmit 30 frames/second of MPEG video over the PC/104+ bus. The hardware compression circuit uses a motion estimation algorithm to produce smooth images from interlaced cameras.

Uncompressed Capture

Model 314 can function as a conventional frame-grabber by supplying uncompressed video with low latency and snapshots of single frames. A lower-cost version, 314NC, is available without the compression circuitry and the on-screen display. It uses the newest 9-bit digitizer technology, plus an adaptive multi-line comb filter to produce higher quality images than those using BT878 technology.

On-Screen Display

A 96-character buffer is available for adding text to each frame. The text is within a transparent box that may be positioned anywhere within the frame. This function is not available on the 314NC.

Motion Detection

The Model 314 performs motion detection in three user-programmable regions of interest. For each separate region of interest, the user can set up different motion detection sensitivity. Within the regions of interest, motion can be further localized to a 16x16 pixel block.

Motion Detection Regions of Interest


Audio Multiplexing

Digitized audio from the 314 is multiplexed into MPEG stsreams by a Sensoray-supplied software in SDK. Hence, the Model 314 performs A/V multiplexing, as do models 516 and 616. External signals connect to the 314 via a 24-pin header. Sensoray's optional 314TA video termination board provides BNC connections for the 314's composite video inputs.

Sample Streaming Applications with VLC and STR Server



Video Input 4 multiplexed input channels
2 S-Video or 4 Composite
Maximum Resolution Full-D1
NTSC 720x480 (at 30 fps)
PAL 720x576 (at 25 fps)
Supported Resolution D1.N, D1.P, D.5
Dimensions(W x H): 3.550 x 3.775 inches

Board Layout



File Version Type Size
Model 314 Manual1.0.0PDF414 KB
Model 314 Quick Start Guide1.0.0PDF16.93 MB
Verified Model 314 Settings1.0.0PDF10 KB


File Version Type Size
Windows SDK for XP Pro and 20001.0.0ZIP15.37 MB
Windows SDK for XP Embedded1.0.0ZIP8.62 MB
Windows SDK for XP Pro and 2000 for 314-NC1.0.0ZIP14.53 MB
Other Operating Systems
Need a software development kit for another operating system? We can port our SDK to
your OS or provide the information you need to do it yourself. Contact Sales for details.

Pricing & Ordering

Model Description Qty 1 Qty 2-9 Order Qty.
314MPEG/MJPEG frame grabber plus audio encoder$359$327
314-NCUncompressed frame grabber$298$272
314TAAccessory board$55$50

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