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blixio

gv-800 framerate vs resolution

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Hi all

 

Got a gv-800 recently and I'm a bit disappointed with the jerky recordings it makes.

When I asked geovision about it they said it supports 100 fps (PAL) at 320 x 240 only. This surprised me as other dvr manufacturers seem to define a frame as 640 x 480 and use tricky claims like 100 images/sec instead.

 

Does anyone know if this is true?

 

I tried 320 x 240 and although it is a lot better there is still some jerkyness where the time between a pair of frames seems to be twice what it should be.

 

Also I want to record at 25 fps so that when I transfer to PAL video there is no more jerkyness introduced but although I've selected max frame rate of 25 fps I still get a 30 fps recording.

 

I'm using MPEG4 recording.

 

Any advice would be appreciated.

thanks

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Was it a new card?

Where did you buy it from?

What version software is it running?

What version card is it (4,8,16)?

 

Software should also allow Fast Mpeg4 if it is a recent card, and also supported 720x480 as far back as Summer last year.

 

The speed will depend on how many cameras are connected and the PC System setup itself.

 

Rory

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thanks rory

 

Yes a new card from Aus PC-Market in Australia. They seem reputable and the antistatic bag had a sticker saying "Anti-Piracy Version".

version 7.05 of software

I think the card was version 3

gv-800-4 bnc with 4 audio

 

I'm only running 2 cameras so far and wanted 25 fps at 640 x 480 from each but it can't seem to handle this with or without audio. Do you know if it is supposed to be able to do this?

 

thanks

 

Was it a new card?

Where did you buy it from?

What version software is it running?

What version card is it (4,8,16)?

 

Software should also allow Fast Mpeg4 if it is a recent card, and also supported 720x480 as far back as Summer last year.

 

The speed will depend on how many cameras are connected and the PC System setup itself.

 

Rory

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Hi

 

Yes, it can handle it easy at 640x480, even at 720x480.

 

Im not familiar with the card version, but I am with the GV800-4.

 

It should have come in a box that says GeoVision on it, and has their "eye" logo. Also should have come with a very thick manual .. the card itself will say GeoVision on it also.

 

I think the easiest thing would be to have you install Ultra VNC and PM me with access to it, then I get on and make sure it is setup properly.

 

Otherwise you may want to post either questions on setup of each camera, how you have each one set up, or even a screenshot of their set up.

 

Rory

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ok Rory

I'll look at Ultra VNC. I'm new to Windows. Used Macs since 1986.

Not sure what PM is but will set out all the settings and post here.

I have to go now I've been in front of this machine for about 6 hours straight. I'll post the settings later.

 

thanks again

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just click on the PM under my name .... post public settings here but keep the VNC stuff private (PM's) ... i'll help as much as I can.

 

Rory

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I think the easiest thing would be to have you install Ultra VNC and PM me with access to it, then I get on and make sure it is setup properly.Rory

 

This forum is great. Where else can you get an offer like that?

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