wattwire 0 Posted October 27, 2008 Can anyone get more than 4fps recording performance from any of these AV Tech models: AVx 715, 717, 785, or 787...on any channel 2 or higher, with the recording parameters "Frame" and "Best"? The recording IPS should be 60 for 8ch or 120 for 16ch. Take the test: 1. Download 1MB of recorded video via client from camera #1 and any other camera. 2. Load the clips into the "Video Player" program. Note how many seconds of video you get for each clip (remember, they should be about the same file size of 1MB). 3. Convert the clips to .AVI files. Use Windows Explorer to see what the frame rate of each .AVI files is by clicking "Properties", and then the "Summary" tab. 4. Bonus points if your video clip contains moving objects, this will give you a better idea of the practical difference in frame rates. Now that the challenge has been made, let me share my experience. Recently I purchase a new AVD715 (8 ch. flavor) DVR and have been running some recording tests. Right away I noticed that channel #1 seems to do a pretty good job, similar the AV761 that I own. However, all other channels seemed really jerky when playing back video of moving subjects. After scratching my head a lot, I decided to set up two identical cameras with identical cables & power, pointing identically on the same scene. I then recorded 30 seconds of video (me pacing back and fourth) and down loaded the two clips from the DVR. I was STUNNED to see that despite how many times I repeated this test, the clip from camera #1 was about 6X the file size of camera #2. The following did not make a difference: Motion Recording or Manual Recording From the "Record" Menu...IPS Share of "Group" or "Fix" Downloading to CD, USB flash drive, or Network Note, the DVR has been upgraded to the latest firmware version by my dealer. When converted to .AVI I found that channel #1 had been encoded to 18fps while all other channels were encoded to 4fps. My suspicions are that the 16 channel models will behave the same way, but I'm not sure. There's also the fluke chance that something is wrong with my particular DVR. Of course, the probability is greater that I'm losing my mind, I've grossly overlooked a setting, or have now have "special needs" than I'm not aware of. Cheers to anyone who reads this and/or reports back testing of their own unit, -dw Share this post Link to post Share on other sites
scorpion 0 Posted October 28, 2008 That is interesting that you are not getting 7.5 per channel! Share this post Link to post Share on other sites
wattwire 0 Posted October 28, 2008 That is interesting that you are not getting 7.5 per channel! Hey Scorp, I know you're an AVTech Grandmaster Guru...could you do a little test for me? Download 1Mb of archive video from one of your 8 / 16 channel units and report the duration in seconds of the clip. Make sure it's NOT from camera #1 (I assume your record settings would be "Best"/"Frame"). It would also be interesting to know what the encoded frame rate of the converted .AVI file is...but I don't want to trouble you too much. If the clip is around 34 seconds, then I'm guessing the frame rate is 4fps. Cheers, -dw Share this post Link to post Share on other sites
