Massive Frame Rate Dropping on Webcam Recording

lightveil wrote on 7/30/2011, 6:14 PM

Dear Group

I am using Magix Movie Edit Pro 17 Plus (HD), and have had nothing but issues when trying to record myself with my webcam (Microsoft HD Lifecam). I select 1280 by 720, 16:9 ratio, and 15 fps. It should work, but when I try to record, the dropped frame rate counter starts up almost straight away, about 5-6 seconds after pressing the record button, to effectively drop about 1/3 to half of all frames captured. So, if I have recorded about 1000 frames, about 300-400 are dropped, and on viewing the recording, the video image of me stutters, and the audio cuts in and out. It is completely corrupted. I have tried multiple resolutions and the cheapest settings I can, but cannot get the program to record me at all reliably in any consistent way. I say consistently because sometimes for some unknown reason it works, but most of the time it does not, and I have not changed any settings. It is bizarre. I close down all other programs to use it but this does not seem to be a factor.

I am not running a cheap set up. I have 8 GB of memory, a Quad-core processor, and an NVidia 8800 Graphics card with Windows 7 64bit Ultimate. My system should be able to handle this. Why can’t it?

Any ideas?

Keith

Comments

johnebaker wrote on 8/1/2011, 3:36 PM

Hi

These symptoms suggest the bitrate from the USB camera is not fast enough.  Is the camera on a USB 2/3 port?.

Is the port shared with any other USB device or on a USB hub?

Do you have a USB external hard drive connected?

John

Last changed by johnebaker on 8/1/2011, 3:36 PM, changed a total of 1 times.

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