Hi

I've spent a lot of time creating a video project using video footage from a DV camera. The files are all AVI DV-PAL - 720x576 25fps - which I understand is a pretty standard format.

After I produced the final video as PAL DVD HQ, I was very disappointed with the quality - the video frame rate is not smooth to the eye like the source video. The total size of the video is less than 108 minutes which is indicated as the maximum length for HQ video.

I also tried just one video by itself and produced an MPEG2 PAL video file - the quality was exactly the same.

Looking around various places on the internet, I discovered there is DV Type 1 and DV Type 2 video. After running a conversion routine on one DV camera video to convert it to Type 2 video, I produced another MPEG2 PAL video file and the quality was much, much better.

I can see that I might have to run a batch conversion routine now on hundreds of AVI files now but I'm a bit fearful of what might happen to the video project I've been working on - will I have to start over again? Is there any other workaround for this?

Thanks
Matt

To: NE1WeKnow

Dear Matt,

Please try to provide some additional information about the issue so we could assist you:
- specifythe program you use and its version,
- describe your actions step by step,
- specify to which format you capture video - Recommended, Native or MPEG-2;
- specify the settings you selected for the output after editing the video.

Thank you for cooperation.

Kind regards

To: Nat


Hi

To: NE1WeKnow

Dear user,

Please provide the infromation requested in my previous message.

Thank you for cooperation.

Kind regards

Hi

- specifythe program you use and its version,

AVS Video Edit 7.1.1.259

- describe your actions step by step,

Import DV video as raw AVI, add a single AVI to the project timeline then export

Information from MediaInfo on a sample AVI:

CompleteName : C:\To Do\source.avi
Format : AVI
Format/Info : Audio Video Interleave
Format_Commercial_IfAny : DVCPRO
FileSize/String : 29.9 MiB
Duration/String : 8s 360ms
OverallBitRate_Mode/String : Constant
OverallBitRate/String : 30.0 Mbps
Recorded_Date : 2007-08-08 09:38:57.000
TAPE : sclive

ID/String : 0
Format : DV
Format_Commercial_IfAny : DVCPRO
CodecID : dvsd
CodecID/Hint : Sony
Duration/String : 8s 360ms
BitRate_Mode/String : Constant
BitRate/String : 24.4 Mbps
BitRate_Encoded/String : 28.8 Mbps
Width/String : 720 pixels
Height/String : 576 pixels
DisplayAspectRatio/String : 4:3
DisplayAspectRatio_Original/String : 4:3
FrameRate_Mode/String : Constant
FrameRate/String : 25.000 fps
Standard : PAL
ColorSpace : YUV
ChromaSubsampling : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Interlaced
ScanOrder/String : Bottom Field First
Compression_Mode/String : Lossy
Bits-(Pixel*Frame) : 2.357
TimeCode_FirstFrame : 00:30:08:01
TimeCode_Source : Subcode time code
StreamSize/String : 28.7 MiB (96%)

ID/String : 1
Format : PCM
Format_Settings_Endianness : Little
Format_Settings_Sign : Signed
CodecID : 1
Duration/String : 8s 360ms
BitRate_Mode/String : Constant
BitRate/String : 1 024 Kbps
Channel(s)/String : 2 channels
SamplingRate/String : 32.0 KHz
BitDepth/String : 16 bits
StreamSize/String : 1.02 MiB (3%)
Alignment/String : Aligned on interleaves
Interleave_Duration/String : 492 ms (12.29 video frames)

- specify to which format you capture video - Recommended, Native or MPEG-2;

Native DV as above

- specify the settings you selected for the output after editing the video.

Hi

- specifythe program you use and its version,

AVS Video Edit 7.1.1.259

- describe your actions step by step,

Import DV video as raw AVI, add a single AVI to the project timeline then export

Information from MediaInfo using a small sample AVI:

CompleteName : C:\To Do\source.avi
Format : AVI
Format/Info : Audio Video Interleave
Format_Commercial_IfAny : DVCPRO
FileSize/String : 29.9 MiB
Duration/String : 8s 360ms
OverallBitRate_Mode/String : Constant
OverallBitRate/String : 30.0 Mbps
Recorded_Date : 2007-08-08 09:38:57.000
TAPE : sclive

ID/String : 0
Format : DV
Format_Commercial_IfAny : DVCPRO
CodecID : dvsd
CodecID/Hint : Sony
Duration/String : 8s 360ms
BitRate_Mode/String : Constant
BitRate/String : 24.4 Mbps
BitRate_Encoded/String : 28.8 Mbps
Width/String : 720 pixels
Height/String : 576 pixels
DisplayAspectRatio/String : 4:3
DisplayAspectRatio_Original/String : 4:3
FrameRate_Mode/String : Constant
FrameRate/String : 25.000 fps
Standard : PAL
ColorSpace : YUV
ChromaSubsampling : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Interlaced
ScanOrder/String : Bottom Field First
Compression_Mode/String : Lossy
Bits-(Pixel*Frame) : 2.357
TimeCode_FirstFrame : 00:30:08:01
TimeCode_Source : Subcode time code
StreamSize/String : 28.7 MiB (96%)

ID/String : 1
Format : PCM
Format_Settings_Endianness : Little
Format_Settings_Sign : Signed
CodecID : 1
Duration/String : 8s 360ms
BitRate_Mode/String : Constant
BitRate/String : 1 024 Kbps
Channel(s)/String : 2 channels
SamplingRate/String : 32.0 KHz
BitDepth/String : 16 bits
StreamSize/String : 1.02 MiB (3%)
Alignment/String : Aligned on interleaves
Interleave_Duration/String : 492 ms (12.29 video frames)

- specify to which format you capture video - Recommended, Native or MPEG-2;

Native DV as above

- specify the settings you selected for the output after editing the video.

Export to MPEG-2 file as per profile "DVD PAL compatible - (MPEG-2, 4000kbps, 720x576, 25fps)"

The resulting MPEG-2 file is noticeably worse quality than the original.

To: NE1WeKnow

Dear Matt,

Thank you for all the information and sorry for misundestanding.

If you decide to capture video from your DV camera anew, you will need to create a new project with the newly capture files, or replace the existing file in the project via storyboard.

When you start capturing video using video recorder, your project will not be modified, new captured files will be added to the media library.

Please specify if I can be of any further assistance to you.

Kind regards

To: Nat


I don't think you understand.

I have hundreds of AVI files in the format I described already above. I've created a project using these AVI files in AVS Video Editor which is 1 hour 45 minutes long.

When I export to PAL MPEG-2 file or PAL DVD HQ, the video quality is much, much worse than the source AVI files, and the quality in the source is not that great to begin with. There is a lot more "noise" in the picture, it is slightly darker and motion is not as smooth.

To: NE1WeKnow

Dear user,

Thank you for the feedback.

To get the output file of high quality please select the input file parameters like frame rate, frame size and bitrate for the output by clicking on the Advanced button after selecting the format. To check the input file parameters right click on the video in media library - choose Properties.

Please let me know if I can be of any further assistance to you.

Kind regards.

To: Nat


Hi

I have tried many times with different bitrate and target format to get the quality ok, but every time it looks a lot worse.

Why wouldn't you tell me which format is best as you are a representative for AVS4YOU, correct? I have given you all of the information about the source?

I have uploaded source AVI to a file share - if you can download and import into a test video project, you will see that the default output formats do not produce a good video. Can you advise on the target format which won't make the quality worse?

Download is here: http://www.filedropper.com/source_3

Thanks
Matt

To: NE1WeKnow

Dear Matt,

Thank you for the file and all the information.

I have selected the input settings for the output and have not noticed any decrease in quality - please see the screenshot attached.

Please let me know if I can be of any further assistance to you.

Kind regards

To: Nat


The quality of the output to me is still very poor - the picture is fuzzier / noisier than the original and that is with the bitrate at 28800kbps which is very high for H.264/AVC.

I can't see any way to export the edited video without extra conversion? I have installed DV codecs (http://www.videohelp.com/software/Cedocida-DV-Codec) and then AVS Video Editor will give me the option to produce a file in DV format, the same as the source, but again the picture of the produced video is much worse and motion is not as smooth as the original. I've attached the parameters I used for this.

It seems very strange that I can't produce a file in the same format with the same bitrate and have it look like the original? This should be possible.

The media information for the output file is pasted below - it's almost identical to the source video.

General
Complete name : C:\Users\User\Documents\AVS4YOU\AVSVideoEditor\Output\Untitled.avi
Format : AVI
Format/Info : Audio Video Interleave
Commercial name : DV
File size : 30.4 MiB
Duration : 8s 560ms
Overall bit rate mode : Constant
Overall bit rate : 29.8 Mbps

Video
ID : 0
Format : DV
Codec ID : dvsd
Codec ID/Hint : Sony
Duration : 8s 560ms
Bit rate mode : Constant
Bit rate : 24.4 Mbps
Encoded bit rate : 28.8 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.357
Stream size : 29.4 MiB (97%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 8s 540ms
Bit rate mode : Constant
Bit rate : 1 024 Kbps
Channel(s) : 2 channels
Sampling rate : 32.0 KHz
Bit depth : 16 bits
Stream size : 1.04 MiB (3%)
Alignment : Aligned on interleaves
Interleave, duration : 46 ms (1.14 video frame)

To: NE1WeKnow

Dear user,

Thank you for the information and sorry for the delay in reply.

Unfortunately we cannot help you any further. The best quality that is available can be achieved by selecting the parameters the way it is indicated on the screenshot I attached in my previous message.

Please let me know if I can be of any further assistance to you.

Kind regards