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Correcting blur of fast sequences
I am exporting the HDV movies made with my HV30 NTSC camcorder using the following Premiere CS4 parameters:
MPEG2 – PAL 1920×1080, 25 i/s – Quality #4
VBR 2 passes – 4min – 15 target – 18.5 Mbits/s max
Codec: Main Concept MPEG video
On scenes featuring fast movements, I can observe a slight blur which is not visible on the original rush. I do not know whether this is due to the exportation settings, to the fact that I am exporting PAL movies made from NTSC rushes or to a lack of power of my computer.
My computer runs under Widows 7 32 bits with a 4600+ Dual Core 64X2 processor and 3.5 Giga RAM.
I would appreciate your help to improve this situation. -
10 Replies
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We have a Canon HV20 Pal which runs at 25 fps. I would imagine that your HV30 runs at 30Fps in NTSC. You have obviously changed the Project settings to suit, but, I have never found the speed changes to be intirely satisfactory as we run a Canon EOS 5D mark II running at 30fps back to 25 fps to match the out put of Premiere Pro to the HV20.
This is required if you use Export to tape but, not to blu-ray or DVD.
If you find a solution tell me. But, minor bluring should not be a problem . Uneven or unsmooth action could be.The HV20 is pretty good in comparison with a HDD Sony which is a little jittery as the pixel changes cannot keep up with some fast action in football
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I must admit on reflection that the specifications of your computer as against our Pentium 3.2GHZ 2GB is disturbing as we were going to upgrade and it would appear that you may have more or greater problems using a higher specified computer ?????????????
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I have bought my HV30 in the US but since I am living in France where the TV standard is PAL, I find more convenient to use this format. The framerate of my rushes is 29.97 frame/s. I am exporting my projects as Mpeg2 files in order to display them on my Full HD TV. I have just tried the H264 – Pal exportation settings available in Premiere Pro which seem to correct, in some extent, my lack of fluidity problem . As of the benefit of upgrading to a more powerful computer, I have not completely understood what you have mentioned about your own experience, did you say that you have changed to a more powerful configuration and have not seen any benefit? Thank you for your assistance.
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No it would appear from replies to this and other forums that the larger computers are not solving some of the smoothness problems.
The Canon HV20 (PAL) 25fps if held correctly with fast action has none or very few problems after editing in Premiere Pro, the video we shot in France last year was virtually flawless from this little videocamcorder.
However, when we used the Canon EOS5D mark II which runs at 30fps and we need to convert to 25fps via the HV20 to tape under some circumstances the pixels do not entirely keep pace with the action. it is a problem in the computer (lack of grunt) or with Premiere. But, if you manually do it on fast moving clips on the timeline @84% of 30fps to 25fps the results are near perfect. But, it is time consuming.
Ps. To quote Canon ” You can play back with the HV20 tapes recorded in HDV standard on the CanonXL H1,XH G1 or XH A1(both 50i and 25F mode)and these are +$5000 videocamcorders.
The output from the Hv20 on a Sony Bravia 46′ is simply stunning.
As we found there is a minor problem in transcoding )in difficult scenes)ie., fast action from 30fps to 25fps in Premiere.
The Computer tech here who uses Sony HD camcorders has found a problem videoing football in smooth action. he blames the Sony, I think it is his Pinnacle software ?
all the best…………….
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Note : The problem is not the Canon Videocameras as the LCDs on both are perfect, it is the conversion from 30fps to 25fps . Canon Australia says new Firmware for the Canon EOS 5D Mark II is coming this year so that the frame rate can be altered over the internet. I doubt thay will do it for a Canon HGV30 from NTSC to the PAL rate.
Hope it helps.
Ps. The video from the HV20 Edited in Premiere Pro with out any fps conversion is perfect in HD on a Sony Bravia 1920 x 1080 HD TV
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Note : The problem is not the Canon Videocameras as the LCDs on both are perfect, it is the conversion from 30fps to 25fps . Canon Australia says new Firmware for the Canon EOS 5D Mark II is coming this yaer so that the frame rate can be altered over the internet. I doubt they will do it for a Canon HGV30 from NTSC to the PAL rate.
Hope it helps.
Frankly, I think the problem is in all the compression going to DVD, it is better to Export to Tape in HDV Cineform AVI using the Adobe Media Encoder
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-> Bob Dix
Thank you for all the comments you have made about my blurring problem.
I am using the Export/Media preferably to Export to Tape because I am displaying my movies from a Western Digital Hard drive to either a 52″ Full HD TV or a 720p video projector. The results are excellent except this blurring problem of fast sequences.
I did not clearly understand the process for converting from 30 fps to 25 fps at 84 %. Do you mean that I have to reduce by 84% the speedness of the clips?
As of the exportation in the AVI HD format, I do not have the Cineform codec. Among those codecs available in Premiere CS4 under the AVI HD settings (Cinepak, Intel YUV..) only the Uncompressed UYVY 422 works to export @ 1920 x 1080 px.
Presently I am unable to use the Export to Tape command which is greyed on my Premiere CS4 menu although the timeline window is active. My Canon HV30 is well recognized by my Windows7 since the camcorder is visible among the computer peripherals. Using the arrows of the Capture window, the camcorder can be operated but the Record red button remains greyed.
I had experienced this problem several times when working with Windows XP and could easily solve it after disabling and reunabling the IEEE 1394 controller of the Windows Control Panel. This method doesnt seem to work with Windows7. If you have any advice related to this problem it will be very welcome. -
Yeah well, Looks like Premiere has changed their codec from my version. Nevertheless you coulkd change the duration of the clip which may improve your blur problem, but some blur in fast moving scenes is inevitable 1. In the timeline windowor project window , select the clip.
+ To change duration numerically, choose Clip.Speed, click the link button unlink speed and duration type, and click OK.To go from 30fps to 25 fps it should be 84% give or take.1 or.2. However , this changes only that clip. To change the whole timeline you should go to Export to Movie and change video in there to 25fps for the whole procject.I think the blur will only occurr on the odd clip ?
Well the HV30 which is technically the same as the HV20 should be in Record in mode and you should activate Execute so that Premiere Pro recognises the camera. You should be in Export to Movie mode not Export to Tape unless they have changed it.
Good luck……………It worries me when you say this does not work with Windows 7 as I will be updating soon. you may be advised to phone Adobe Customer Support although I have found them close to incompetent, verging is the word in Australia.
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Phillippe,
I forgot to say the Export to Movie will generate a Cineform avi file or whatever they have changed it to, make sure you know where you saved it. Open the file up in a new project then Export to Tape.
You must have the canon HV30 turned on and in HDV Export in Mode, and click Execute. If you have the sound on when you do this you will hear the connection sound. Once you have finished the Transcode in premiere it shou;ld ask you to Save then it should automatically start the HV30 provide you have set it up correctly.
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-> Bob Dix
After testing different export format and settings I think I shall now export my movies as NTSC since it appears that there is practically no blur in this format and that my HD TV set can play NTSC HD movies notwhistanding that the current format in Europe is PAL. The older TV sets were unable to play NTSC otherwise that in black and white. Thank you for your help.
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