AVerMedia NV1000/3000/5000/7000 User’s Manual

resolution 640x480. You can modify the setting to resolution 640x 480 for a better video image quality.

The higher resolution will result in a larger video size. 640x480 (enhanced) mode provides a higher video quality than 640x480 mode, thus the image quality will be better;however, the file size recorded by 640x480 (enhanced) mode will become larger.

When you adopt 640x480 (enhanced) mode, the system provides a

“Deinterlace” function to make the video clearer when the system records moving objects. “Deinterlace” enables the system to eliminate some disturbing lines and make the video clear and smooth

For NV 7000 users, the system provides 2 sizes for selection: 352 × 240, 720 × 480 (NTSC) or 720 x 576 (PAL). The higher resolution will result in a larger video size. When you adopt 720 × 480 (NTSC) or 720 x 576 (PAL) mode, the system provides a Deinterlace function to make the video clearer when the system records moving objects.

When the system is recording objects of a moving process, it records 30fps or 25fps every second depending on the visual systems (NTSC/PAL). Each frame will consist of two sub-frames, or "fields". When these fields are merged into the full frame, interlace lines appear where the fields differ (usually due to motion). When you select “Deinterlace”, the system will de-interlace the lines and make the motion smoother.

When you select 640x480 (enhanced) mode, the system will allow you to tick to enable this function.

Resolution 640 × 480 mode will occupy much CPU resource. When you select this video size, please check your hardware specification to avoid unnecessary trouble.

8 Compression Type

The system provides 2 compression types: MPEG4 and MJPEG. If you select MJPEG (lower compression ratio), the file size is bigger. If you select MPEG4 (higher compression ratio), the recorded file will be smaller.