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  • Black Compression artifacts in HD to SD conversion

    I have used Antons method to downconvert in the past, the last DVD I did had some black compression artifacts in the whites? Anyone have any ideas what would cause this. I use his site for the steps to do the conversion. Thanks
    Chris

  • #2
    what software was used to convert Canopus HQ to mpeg for DVD?

    which down convert method was used? VD or T4?

    did the Canopus HQ show artifacts when played in Edius after down convert and prior to DVD convert?
    Anton Strauss
    Antons Video Productions - Sydney

    EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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    • #3
      what software was used to convert Canopus HQ to mpeg for DVD
      I used MPEG Exporter in Edius with settings from your site for authoring Blu-Ray

      which down convert method was used? VD or T4
      I used VD

      did the Canopus HQ show artifacts when played in Edius after down convert and prior to DVD convert

      No, the artifacts where not there but the file, after conversion seemed softer than normal

      Thanks
      Chris

      Comment


      • #4
        Originally posted by ChrisFar View Post
        what software was used to convert Canopus HQ to mpeg for DVD
        I used MPEG Exporter in Edius with settings from your site for authoring Blu-Ray

        which down convert method was used? VD or T4
        I used VD

        did the Canopus HQ show artifacts when played in Edius after down convert and prior to DVD convert

        No, the artifacts where not there but the file, after conversion seemed softer than normal

        Thanks
        Chris
        sorry, I am confused, you typed authoring Blu-ray, in which case, you don't need to down convert

        the down converted HQ file will be softer if played in a HD project, as soon as you switch the project to SD, it will be sharp
        Anton Strauss
        Antons Video Productions - Sydney

        EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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        • #5
          Sorry Anton I meant to type authoring Export to Program Stream DVD.
          Maybe I have made an error
          1. I render the full HD file in Canopus HQ.
          2. I take that file into Virtual Dub, and follow the steps on your site
          3. I take the downconverted file from Virtual Dub and Open a SD 16.9 DVD project
          4. I then change field order and size. I export that using MPEG Exporter and setting used in your tutorial on exporting to SD DVD, I use Program not elementary.
          5. I then burn the DVD using TMPGe Authoring 4.
          Sorry for the confusion
          Thanks
          Chris

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          • #6
            maybe your authoring works is further processing the file

            also, T4 Xpress makes sharper mpeg2 for DVD than the Edius mpeg exporter

            I think authoring works may have the same encoder built in, in which case you could export a standard Def HQ after fixing field order and aspect and then feeding it to authoring works
            Anton Strauss
            Antons Video Productions - Sydney

            EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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            • #7
              in which case you could export a standard Def HQ after fixing field order and aspect and then feeding it to authoring works


              Just so I am sure what you are recommending,
              Simply change field order and aspect of the HD Project in Edius and export to 720 x 480 file, then go right into TMPGe 4. Omiting the VD conversion???
              Or take the file right from VD and go into Authoring Works. If so how do I do that conversion In Authoring Works???

              Sorry for all the questions, thank you for your help.
              Chris

              Comment


              • #8
                no

                do the HD to SD with VD

                then open the SD in SD project, fix field order and aspect and export to a new HQ

                use this one in authoring works, or T4 Xpress to convert to DVD compliant files
                Anton Strauss
                Antons Video Productions - Sydney

                EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

                Comment


                • #9
                  Anton I am experimenting while we are having this discussion.
                  I have just produced a SD DVD that has very good quality.

                  I bypassed the VD step. Here is what I did

                  I exported the Edius HD file at 1920 x 1080 in Canopus HQ.
                  I imported that into TMPGE Authoring works and setup a SD 16.9 Project crested the menus and targeted a 4.7GB disc.
                  I let TMPGE to the conversion and burn and it looks very very good.

                  What do you think about this workflow???
                  This was a 58 minute project
                  I will try it on a 2hr project today.
                  Thanks
                  Chris

                  Comment


                  • #10
                    Chris,
                    I just export a 1920x1080 HQ file from Edius and get TMPGenc encode for SD DVD authoring in DVDLab. I don't change anything from defaults and it works just fine for me. This would be the same as getting Author Works to create the DVD as you have done. I think there may be a difference in how TMPGenc deals with PAL and NTSC as I have always found the direct approach to be perfectly acceptable. On HDV video using the VD approach on fine diagonal detail has sometimes given a slightly better downconvert though this file has lacked colour and sharpness. Recovering the colour and sharpness of course increases the edge artifacts to the point that it is close to the default TMPGenc encode.
                    With 1920x1080 Edius projects using AVCHD as source I have just used the standard defaults in TMPGenc with a 1920x1080 HQ fine file export from Edius.

                    Most of my projects are 2 hour theatre shows so time to encode is important and using TMPGenc defaults is a lot quicker.

                    Ron Evans
                    Ron Evans

                    Threadripper 1920 stock clock 3.7, Gigabyte Designare X399 MB, 32G G.Skill 3200CL14, 500G M.2 NVME OS, 500G EVO 850 temp. 1T EVO 850 render, 6T Source, 2 x 1T NVME, MSI 1080Ti 11G , EVGA 850 G2, LG BLuray Burner, BM IP4K, WIN10 Pro, Shuttle Pro2

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                    • #11
                      Originally posted by ChrisFar View Post
                      Anton I am experimenting while we are having this discussion.
                      I have just produced a SD DVD that has very good quality.

                      I bypassed the VD step. Here is what I did

                      I exported the Edius HD file at 1920 x 1080 in Canopus HQ.
                      I imported that into TMPGE Authoring works and setup a SD 16.9 Project crested the menus and targeted a 4.7GB disc.
                      I let TMPGE to the conversion and burn and it looks very very good.

                      What do you think about this workflow???
                      This was a 58 minute project
                      I will try it on a 2hr project today.
                      Thanks
                      Chris
                      yes, I use this worklow a lot but I don't use authoring works, I use T4 Xpress and DVD Lab Pro
                      Anton Strauss
                      Antons Video Productions - Sydney

                      EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

                      Comment


                      • #12
                        Thanks Ron and Anton. I did not like the way the 2 hour version of the project came out. Using the workflow I discussed it looked compressed to me.

                        Comment


                        • #13
                          Originally posted by ChrisFar View Post
                          Thanks Ron and Anton. I did not like the way the 2 hour version of the project came out. Using the workflow I discussed it looked compressed to me.
                          is this with Canopus HQ 1920 to Authoring works?
                          Anton Strauss
                          Antons Video Productions - Sydney

                          EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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                          • #14
                            Canopus HQ 1920

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                            • #15
                              hmmm, I thought you said you were happy and now you are not, what changed?

                              btw, I never put more than 90min on a single layer DVD
                              Anton Strauss
                              Antons Video Productions - Sydney

                              EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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