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Themescene H78 (1280 x 720) 50HZ or 60HZ

Discussion in 'Projectors, Screens & Video Processors' started by seanm, Jun 13, 2005.

  1. seanm

    seanm
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    Could someone please clarify the benefits of using either 50 or 60 Hz

    I can set either from my Momitsu V880N DVD Player
    I am finding it difficult to see the difference.

    Cheers,

    Sean
     
  2. Kramer

    Kramer
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    50Hz is better for Pal while 60Hz is more suitable for NTSC (25 & 24 fps respectively).

    Basically smoother pans/less/no judder/stutter.

    :smoke:
     
  3. cyberheater

    cyberheater
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    If you can't 'see' the difference then there is no benefit.
     
  4. Peter Parker

    Peter Parker
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    I can't see the difference so I leave my HTPC on 60hz regardless of PAL or NTSC disks. It also helps because I haven't installed Powerstrip yet. :)

    Gary.
     
  5. seanm

    seanm
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    I had it hooked up to a HTPC before and always left the default at 60hz. (The ATI Cards did not allow 50hz without custom timings with Powerstrip)
    The Momitsu V880N allows DVI & Component 720p or 1080i at 60 or 50Hz and also has custom DVI settings for the H77 http://www.momitsu.com/dvd_880_faq_dvi.html
    I think I will give it a try and see how I get on.
    The H78 syncs at 1280x720 50Hz with the settings on there website.
     
  6. Peter Parker

    Peter Parker
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    You didn't notice any stuutter either then? :)

    I'll be interested to know the results with the Momitsu as it will prove if its the HTPC or the projector compensating for the incorrect frequency. I've a feeling it's the HTPC doing it though, so I wouldn't be surprised if you notced stuttering with PAL at 60hz on the Momitsu. Is it very noticable?

    Gary.
     
  7. nortonl

    nortonl
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    Hi Gary

    I found find noise levels increase significantly with 30/60Hz on my H77 (soon to be H78), which I assume is the colour wheel spinning faster.

    Did you notice this ?


    Leigh
     
  8. seanm

    seanm
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    I have a feeling its the H78 projector handling the incorrect frequency.

    I have flicked between both on the Momitsu and am sticking with 50hz (as its available without tweeking) You can choose 720p/1080i either frequency over DVI or Component. DVI seems sharper than component though.

    I have to say, I think the PQ on the Momitsu is fab. I tried a couple of sub £200 DVD players and this is the only one to be on a par with PowerDVD 6/WinDVD and the Nvidia Codecs on the HTPC.

    I may even be as bold to say its slightly better than my 256MB ATI X800 pro.
    Plays most of my encoded video (AVI, MPEG1/2/4 Variants) perfectly over the LAN too.
     
  9. Peter Parker

    Peter Parker
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    Nortonl,

    I can't remember what 50hz sounds like as I only tried a component input once and I have a feeling it may have been an NTSC disk. I might try 50hz though out of curiosity,

    Sean,

    Sounds like a good little player, espacialy if you feel it's on a par with HTPC. The closest thing I ever saw to HTPC was a Pioneer 868i via HDMI into a Sim2. It sounds very useful as a front end for a lan as well - does it play the files you mention from the lan like a PC would?

    Gary.
     
  10. seanm

    seanm
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    I have a couple of niggles with it.
    The JPEG viewer seems to downscale high resolutions, which was not on a par with a PC.
    The web viewer is also a bit naff (not that I used my HTPC for this)
    It looks very cheep, but inside the Sigma Designs chipset, does a good job at upconverting to HD.

    Apart from that, it seems to handle most of the media I have thrown at it. I have it connected via ethernet, but there is a slot for a PCMCIA Wireless Card and a USB connector of Card Readers.

    - MPEG 1 VCD format (1150Kbps CBR) (.mpg, .mpe, .mpeg, .dat, .m1v)
    - MPEG 2 up to 9Mbps (.mpg, .mpe, .mpeg, .m2v, .vob, .vro)
    - MPEG 4 (OpenDivX, XviD, RMP4) (.m4v, .avi, .divx, .xvid, .rmp4, .mov, .mp4)
    - AVI audio codec : MP3, AC3, PCM, WMA, Ogg
    - MOV : 3ivX + MP3, 3ivX + PCM, 3ivX + AAC (3ivX converted from supported MPEG 4 video codec using Dr. DivX II for MAC OS)
    - MP4 : MP4V + MP4A (AAC) (only support non-hinted MP4)

    • Audio-on-demand supporting
    - MPEG I Layer 1 (MP1) (.mp1, .mpa)
    - MPEG I Layer 2 (MP2) (.mp2)
    - MPEG I Layer 3 (MP3) (.mp3)
    - Ogg Vorbis (OGG) (.ogg)
    - AC3 5.1 (AC3) (.ac3)
    - Microsoft PCM Wave (WAV) (.wav)
    - Advanced Audio Coding (AAC, ADIF, ADTS) (.aac)
    - Apple MPEG4 AAC Audio (M4A) (.m4a)
    - Microsoft Windows Media Audio version 1 and version 2 (WMA) (.wma)

    • Photo Album (JPEG) with all the supported audio format as background music.
    • Internet Radio supporting Shoutcast server MP3 Internet Radio stream.

    It streams really nicely from my iMac and Sony Laptop (connected wirelessly) and its great to have my iTunes library played through my Yamaha DSP 757.

    Sean
     
  11. seanm

    seanm
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    There was talk of an addon Video Input Module, Which would have been great for the H78.
    This would have upscaled my SKY+ signal.
    At the moment I have it connected via Svideo to the Yamaha (Which then sends the signal to the H78 using Component)
     
  12. Peter Parker

    Peter Parker
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    I'm thinking of putting a freeview card in mh HTPC just to see how tv looks on it. I did try a freeview box via composite but it looks very soft (as expected). I watched Dr Who on it once and it wasn't too bad (the picture I mean) :)

    Gary.
     

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