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Personal Review of Hollywood DV-Bridge

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  • Personal Review of Hollywood DV-Bridge

    Hi,

    This is a simple review of the Hollywood DV-Bridge from Dazzle. Since this is my first attempt at DV hardware, it should be good for those beginning transition from analog to DV.

    The DV-Bridge is a device that makes the claim it can act as a A-to-D converter (and vice-versa). The item to keep in mind is that this device does not come with a 1394 card. You have to get that separately. For my setup, I went with an ATI DV Wonder card that one user here used succesfully.

    It should be noted that the DV-Bridge has been updated by Dazzle. There were some issues in previous versions.

    Hardware
    --------
    AMD 1.1 GHz
    786MB RAM
    1-20GB WD HDD (non-RAID)
    1-20GB Maxtor (non-RAID)
    2-45GB IBM 75gxp (RAID-0)
    Matrox G400-TV
    Hauppage WinTV-Radio
    Promise FastTrack ATA100
    DataVideo TBC-100
    ATI DV Wonder / Dazzle Hollywood DV-Bridge

    Software
    --------
    Windows2000 SP2
    DirectX8a
    WMP 7.1
    Ulead MSP6.5
    ...

    Components
    ----------
    The ATI DV Wonder is a very small PCI card. There are 3-1394 ports on it.

    The Hollywood DV-Bridge is in all esence, a BOB. There are standard connections for video-in and video-out as well as 1394 and LAN-C ports. The device can be used separate or connected from/to a PC. The codec is handled in the hardware.

    A mode button is available for switching A-D, PassThrough, and D-A. However, the hardware switches itself appropriately.

    Installation
    ------------
    First, the ATI DV Wonder was installed. This went in like a breeze. Win2K recognized this card as "OHCI Compliant IEEE 1394 Host Controller." The driver installed without searching for the Win2k CD.

    Next, I plugged in the Hollywood DV-Bridge. This was done using the included 1394 cable.Win2k recognized it as "Microsoft DV Camera and VCR." Again, easy install and no CD was needed.

    Finally, I plugged in all of the camcorder cables (S-Video and composite audio - S-Video goes through a DataVideo TBC-100). Just for the sake of it, I plugged in a TV to the output of the Dazzle BOB.

    The test
    --------
    The scene was of some footage in SeaWorld, Orlando. There is a clear blue sky and a very colorful background.

    First, I captured using YUY2 + PIC Video with the quality set to 20 (about 9-12 MB/s). The capture device was a WinTV-Radio. Next, I captured the exact same thing using the DV-Bridge (standard 3.5MB/s).

    Captures went very cleanly using different programs. For some reason, I am actually starting to enjoy MSP's capture program more than others.

    A small note is that I really enjoyed having the TV as a preview window during captures. The WinTV does not allow this. It reminded me of the days when my G400-TV had all of its power working.

    Once the captures were done, I created a project in MSP6.5. I made a simple split in the video and used a page roll transition to join them. This is important to me because I have had some odd results with this one.

    Finally, I went further and created a SVCD and VCD using TMPGEnc.

    Results
    -------
    From strickly a data viewpoint, 9-12MB/s is greater than 3.5MB/s. Obviously, there is more data there. However, is it better quality?

    Simply put, the PIC Video sample did not look as crisp or colorful as the DV-Bridge capture. This is perplexing as DV compresses color. However, I think I have a reason why.

    The DV-Bridge not only captures using hardware. It also uses hardware to playback the video. To test this, I took the same DV-Bridge file and played it using strictly software through the G400-TV (aka shutoff the DV-Bridge). Then, I turned the hardware back-on. The results were obvious. The Hollywood DV-Bridge really produces superior playback results.

    Now, just comparing software playback to software playback produces neutral results. The DV-Bridge is still better, but not nearly as much.

    What about VCDs/SVCDs? Well, this was not easy for me. After tinkering with TMPGEnc's settings, I decided to go on purely standard ones. When I first created the sample from the DV-Bridge, I was highly critical of it. However, that changed when I created the VCD/SVCD from the PIC Video sample.

    The PIC Video sample was very good. The DV-Bridge was also very good. The differences were really hard to notice. Between the two, I would say that the PIC Video sample was a bit more smooth while the DV-Bridge was more clear.

    Finally
    -------
    I know this is a simplistic evaluation. However, I wanted to go right to the heart of it. How it looked was most important to me. After evaluating it myself, I asked for volunteers (grin). Each one agreed the DV-Bridge samples were just that much better.

    This hardware reminds me of the days when I had the access to the power of the Zoran chip (ahhh, that color boost is back again). The biggest difference is that the problems are not there (flashes, stuters, bad frames, etc.). I can not wait to hook up the LAN-C control of the Bridge. If that works, then this is a almost a perfect device for me.

    That's it!

  • #2
    You've ignored the main issue most people are having with the DV Bridge -- output back to tape.

    You need to output 15 minutes, or more of DV back to tape and if you don't see intermittent "gray blocks" or areas of "video mosaic" appear and dissapear on the screen I'd be happy to hear that they've finally fixed it. Output will be perfect except for the 10-30 second periodic episodes of corrupted output.

    Is there a revision number on the box or device? I want to know I'm getting a revised one as I've returned two of these in the past six months for the gray blocks problem :-(

    --wally.

    Comment


    • #3
      Hi,

      I could not find a revision # on it. Just a serial # and barcode.

      I went back and captured a full hour of footage. The small amount disk space used is really welcome. I was pleasantly surprised to see a single capture file as well.

      After capture, I played it back with other people looking for blocks. I did some reading on the problems people are having. What I was expecting was either clumps of grey blocks or a lot of blocks in the mosaic pattern.

      What I got was an excellent output with a (as in a single) block once in awhile. Even then, the block occurences were out of the way and tiny (not exactly grey either). Over the whole hour, I counted about a dozen blocks (if they were that at all). Outside of myself, no one noticed anything out of the ordinary (which makes me think it was more my nervousness). The mosaic/aliasing pattern is not there at all.

      Also, I'm working a simple project now as well. So far, all is well.

      Not sure if this helps or not. I read that the problem has something to do with PCI bandwidth.

      This device, thankfully, works for me.

      Comment


      • #4
        I hope its fixed.

        The PCI bandwidth claim is total BS from Dazzle. You can unplug the DV Bridge and plug in a DV cam, DVMC-DA2 etc. and output is perfect. Nothing changes except what is on the end of the 1394 cable.

        I'll probably wait to see what Canopus' offering is like and if its not what I think it should be, I'll probably go ahead and get the DVMC-DA2.

        --wally.

        Comment


        • #5
          I was trying to find a comparison of the DVMC-DA2 to the DV-Bridge. Do you know of any (specifically quality, LANC capability, etc.)? The price actually has come down to the sub-$300.

          I read a preliminary review of the Canopus product. The beta review was actually lukewarm and the Sony product was recommended over it.

          Comment


          • #6
            I have zero experience with LANC other than building a dongle to hook to my parallel port and LANC connector to "hack" my Sony D8 camcorder to enable the White Balance Menu.

            --wally.

            Comment


            • #7
              Nothing personal, but I'm interested in your dongle...

              Wally, I'd like to be able to do pass-through analog to digital capturing using my TRV900 which unfortunately requires a hack with this model of Sony camcorder. Two questions- where can I get info on making a "dongle" and where is the best place to look for the necessary software? I had researched this info months ago but I got scared off by all the references at the sites I saw about PAL. Being in NTSC territory, I didn't want to mess up the camcorder. Thanks for any help you can offer.

              Comment


              • #8
                The sites you saw should have the link to the schematic, if you can't find it, follow-up and I'll post it latter as I don't have it handy where I am now. I used the RM95 emulator program after booting a DOS floppy.

                Most of the info is PAL because most PAL camcorders have analog recording disabled by default and hence need the hack. NTSC users don't have this problem. You can make changes and test them without saving back to the camera's Flash memory so if you screw up, cycling the power should restore the defaults. Don't write the flash until you've verified everything works correctly and have properly updated the checksum.

                All the info I have came from the A-IN enabling sites and is too complicated to repeat here.

                Good luck!
                I've done four camcorders so far without any problems.
                I always have a fully charged battery in place and the AC adaptor plugged in when doing this so a power company failure or a bad battery doesn't screw me up.

                I tried enabling pass-thru recording on my TR7000 but it didn't seem to work, the white balance menu has really reduced my need of color correction in editing.

                --wally.

                Comment


                • #9
                  Thanks Wally, I'll summon my courage and check out those sites again.

                  Comment


                  • #10
                    Wally,

                    This may be nothing. I noticed the packaging for the DV-Bridge has changed. For one, there is no longer a sticker slapped on the side of it saying: "Output in Windows98SE and Windows2000 may contain artifacts." The other notice that I see is that there is an XP certification on it. Maybe this is what to look for when buying one of these?

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