"checkerboard" mpg

[dmprice]

tried about every option in TMPGenc, still the vido looks "blocky" - that is, the mpg lookes like a checkerboard.

the avi is fine

(using NERO, i compare the avi to the mpeg in FULL SCREEN)

anys solutions?

[ZippyP.]

With all of the details that you have provided (none) it is very difficult to guess what is causing your problem. Generally, in an avi to mpeg conversion, blockiness can be caused by two things:

1. Upsizing the resolution from lower to higher. It's best to convert to a similar or slightly lower resolution as the source.

2. The bitrate is too low for the resolution, i.e. your bits per pixel count is too low. You can drop the resolution or increase the bitrate to compensate. Also, if file size is a restriction, using 2-pass VBR in order to better distribute the bits can help.

8)

[drewson99]

this sounds like a bitrate problem. try a higher bitrate.

[andkiich]

Another import tidbit of information would be MPEG1 or MPEG2?

[dmprice]

lke a said, i tried just about every setting. VCD bitrate, max bitrate for SVCD, capturea at 640x480,480x480,352x240, etc

when i convert DVD to (S)VCD, there is no "checkerboard"

from vcr rca connections to wintv pci card
VIRTUAL DUB: capture to single avi file (winxp -> no limit on avi size)
AUDIO:
audio compression: pcm, 44.1khz 16 bit stereo 172kb/sec
VIDEO:
video format: YUY2, 480x480
source: composite, NTSC_M
compression: no recompression
all other settings default
CAPTURE:
frame rate 29.97
lock video stream to audio
all other setting default

TMPGEnc: used to convert avi to S(VCD)
-PROJECT WIZARD
video type: non interlace
aspect ratio: 4:3 525 line ntsc
content of video: video movie
EXPERT SETTINGS:
VIDEO:
bitrate: constant
motion search: motion estimate
ADVANCED:
field order: top field first
all other settings default

AHEAD NERO: burning CD.

[VCDHunter]

motion search: motion estimate

Try changing this to "High Quality"

[ZippyP.]

Since you are converting captured material, which tends to be noisy (esp when compared to DVD), I suggest that you use some noise filtering. There is noise that you cannot even see and it eats up bitrate. Either filter and frameserve from Vdub or use the internal TMPGEnc noise filter. TMPGEnc's filter will take some time but I hear it's worth it. 8)


A few details and you get all kinds of suggestions!