Originally Posted By: silvertones
Originally Posted By: rockstar_not
I think that the pixelation has to do with the codec, and perhaps frame rate aliasing issues. Keep in mind that the whole point of video compression is to reduce file size. This is accomplished by leaving as many pixels the same from frame to frame as possible; at least that's one of the methodologies. Codecs also 'group' like formatted pixels. You don't notice it when there isn't a bunch of change of color because the visual system is trained to see change (that's how it's so relatively easy to see satellites on a clear night). With the color chase, you are making the codec do what it doesn't want to. It's trying to group and keep things static, but you interrupt that with color changes that aren't necessarily part of the compression's expectation.

Try changing the codec - but your comment that the chase is kind of cheesy is right on.

I would work in some live footage as well with audience participation as part of the shots.

After really troubleshooting the pixelating I discovered the issue. There was no issue in real time. No issue when recording to the Webcam capture software. The only issue was recording using Video Pad software. The record bit rate was WAY too low. I upped the bit rate and it looks great.Except the sunlight in the windows.


John, the bitrate used IS part of both frame rate and codec that is being used. Inside of the recording software, it is using a particular methodology to convert what is coming in analog from the camera to digital format. There is likely live compression happening when this is being done. There is certainly sampling happening, which is where the frame rate aliasing which Mac referred to can occur. And unless you are recording video full smoke, it's likely doing compression while saving the video files at the recording process. Then when you go to save the file, you likely have some quality options which are again compression algorithms at play. don't be surprised if you upload the video to YouTube, you see this pixelation thing raise it's ugly head. Upload in the highest quality that you can.

-Scott

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