Metallo
23rd August 2008, 21:49
Hi,
I have transferred two recordings from my digital camcorder to my PC in DV format.
I used WinDV for this process and the file is type-2 - size is about 27GB.
I used VDub to join the two files.
I converted the big single file in DVD elementary streams (m2v + mp2) using Canopus ProCoder 2 (Video bitrate 7800 kbps, Max bitrate 8000 kbps).
Audio MPEG 224 kbps.
The encoded file is about 7GB
I also extracted the timecode from the dv file, converted into .srt and added as subtitle.
Everything is PAL.
The problem:
Watching the DVD (DL-R) with my Denon DVD-2900 standalone player, the scenes where I switch from subject A to B (basically, when I move the camcorder to another subject, not quick movements though) or I zoom, appear as (and here I miss the right English term) having speed problems, what I mean is that the flow is not smooth.
Basically, when you film, 99% of the time you move the camcorder, therefore, every movement gives the impression the speed increases and everything is trembling, you become dizzy to watch it :eek:
It's difficult to describe because I don't know the precise technical term (jerky perhaps?) but I guess you understand what I mean.
During my tests, the first encoding I did was only 4000 kbps because I wanted to test everything on a DVD-RW 4.7 (DL are expensive!), so I thought the problem was due to the low quality of the encoding.
I re-encoded everything at 7800 kbps, the image is obviously better but, much to my surprise, what just described is still there.
It is the first time I have this issue (I have done many DVDs in the years) and have no clue where the problem can possibly stand.
Watching the source .avi, the encoded .m2v or the DVD -DL with VLC, it looks good and do not remark the issue, but on the other hand, a PC has more possibility to compensate speed issues, so I guess it is not important.
I tried the disc on another player today, no change but a t least I am sure my Denon is not to be blamed.
I have the verification log of the burning process, no errors.
What are the typical reasons during the encoding process that might generate such a behavior?
:thanks:
Alex
Well, while waiting for some comments I noticed the following:
When loading the source .avi file in Procoder, I get the interlacing field as "Upper/Top first", therefore when selecting the interlacing field in the target file, I chose Upper/Top first.
I opened the same .avi file with TMPGEnc 3.0 XPress and the interlace field is "bottom field first". Now, I'm confused, because if what TMPGEnc 3.0 XPress indicates is true, then I should reverse the field order in the target file, shouldn't I?
How do I know which interlace filed is correct in the original source file?
I mean, jerkiness could be due to reverse field.
I have transferred two recordings from my digital camcorder to my PC in DV format.
I used WinDV for this process and the file is type-2 - size is about 27GB.
I used VDub to join the two files.
I converted the big single file in DVD elementary streams (m2v + mp2) using Canopus ProCoder 2 (Video bitrate 7800 kbps, Max bitrate 8000 kbps).
Audio MPEG 224 kbps.
The encoded file is about 7GB
I also extracted the timecode from the dv file, converted into .srt and added as subtitle.
Everything is PAL.
The problem:
Watching the DVD (DL-R) with my Denon DVD-2900 standalone player, the scenes where I switch from subject A to B (basically, when I move the camcorder to another subject, not quick movements though) or I zoom, appear as (and here I miss the right English term) having speed problems, what I mean is that the flow is not smooth.
Basically, when you film, 99% of the time you move the camcorder, therefore, every movement gives the impression the speed increases and everything is trembling, you become dizzy to watch it :eek:
It's difficult to describe because I don't know the precise technical term (jerky perhaps?) but I guess you understand what I mean.
During my tests, the first encoding I did was only 4000 kbps because I wanted to test everything on a DVD-RW 4.7 (DL are expensive!), so I thought the problem was due to the low quality of the encoding.
I re-encoded everything at 7800 kbps, the image is obviously better but, much to my surprise, what just described is still there.
It is the first time I have this issue (I have done many DVDs in the years) and have no clue where the problem can possibly stand.
Watching the source .avi, the encoded .m2v or the DVD -DL with VLC, it looks good and do not remark the issue, but on the other hand, a PC has more possibility to compensate speed issues, so I guess it is not important.
I tried the disc on another player today, no change but a t least I am sure my Denon is not to be blamed.
I have the verification log of the burning process, no errors.
What are the typical reasons during the encoding process that might generate such a behavior?
:thanks:
Alex
Well, while waiting for some comments I noticed the following:
When loading the source .avi file in Procoder, I get the interlacing field as "Upper/Top first", therefore when selecting the interlacing field in the target file, I chose Upper/Top first.
I opened the same .avi file with TMPGEnc 3.0 XPress and the interlace field is "bottom field first". Now, I'm confused, because if what TMPGEnc 3.0 XPress indicates is true, then I should reverse the field order in the target file, shouldn't I?
How do I know which interlace filed is correct in the original source file?
I mean, jerkiness could be due to reverse field.