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Lip Synch Aaaargh!!!

Discussion in 'Plasma TVs' started by nobbydog, Oct 26, 2003.

  1. nobbydog

    nobbydog
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    This is driving me crazy now:mad: :mad: :mad: :mad:
    Philips 30" lcd (my dads) on many channels most of the time but varies. I've read a little about Denon 3803's and delay boxes(?).

    Some serious help now needed to sort this out (PLEASE).
     
  2. vonhosen

    vonhosen
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    Yes I am sensitive to lip sync problem (with plasma) & have to use a delay.

    For stereo you an use fairly simple audio delay devices (just look at Behringer for one).

    If it's for AC3 or DTS stream you will need master audio delay on a higher end amp/processor (cheapest is probably Denon 3803 that currently offers this feature)

    Lastly you can go for a dedicated AC3/DTS bitstream delay unit like the Vigatec Wave. I have one of these & it works great (generally have about a 60ms delay set) but they are expensive.
    Apparently there are rival products coming to the market shortly that are considerably cheaper (£200-£300). I think it was Joe Fernand on these forums who was hinting about these but I don't have any details of them.
     
  3. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    One of the companies I deal with is about to launch a 5 input digital delay with abilty to set delay per input from 1millisecond to 3 seconds. It will also de-jitter signals going through it which could improve audio quality of some sources. It's IR controlled so changing settings on the fly may be possible. I havent' got hold of oe yet so cannot comment on actual performance


    Price will be around £400

    Gordon
     
  4. wilber

    wilber
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  5. nobbydog

    nobbydog
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    Thanks all for the replies.

    Vonhosen, I've had a look at the Behringer website, is this the sort if thing?http://www.behringer.com/02_products/prodindex.cfm?id=DSP110&lang=eng
    Is there a possibility that changing the connection from the sky box to the display, currently full RGB scart, to something else (I think the lcd has svideo & Y/U/V inputs) might make a difference? If not, would the unit in the link above only work in stereo? Also, what about installing a surround speaker package and receiver, could that make a difference?
    I don't think he would mind at all if the picture quality suffered if the connection was changed and I'm sure he would rather have 'in-synch' sound for now only in stereo, even if it meant the virtual surround did'nt work.
    The other point is that anything above about £150 to crack the problem is gonna be a bit expensive.

    Thanks again, just want to nail this once and for all.:smashin:
     
  6. Jasonjo

    Jasonjo
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    Gordon - please keep us posted about this...hopefully Joe or yourself will stock these soon...imagine you will get lots of customers!!!! :D

    JJ
     
  7. vonhosen

    vonhosen
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    Possibly it could (but I haven't tried any of these devices myself). One I have heard people mentioning on these forums is this http://www.behringer.com/02_products/prodindex.cfm?id=DSP2024P&lang=eng

    These (& the one you have highlighted) would only be good for two channel.

    I can only speak from my experience with my plasma . I suffer withe lip sync (slight) on Progressive scan DVD via component to plasma & (slightly more) on Sky , S-VHS & Laserdisc (all thru Iscan Ultra Video preocessor)

    To combat this I use one of these
    http://www.vigatec.de/bilder/down/e_daten/e_wave.pdf
    which has 6 digital (AC3/DTS) stream In & 2 out
    + 1 analogue pair In

    I find a 60ms delay for my sources sorts it all out, but it is quite a bit more than £150 for the WAVE.

    Changing to surround system or changing your input from S-Video to YUV are not going to help, unless if you do buy a new amp/processor you are going to need to make sure it has a MASTER audio delay.

    Other than that you may be better waiting to get one of the devices Gordon is referring to.
     
  8. Jasonjo

    Jasonjo
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    Vigatec Wave = £699+VAT...ouch!!!:eek: :eek:
     
  9. vonhosen

    vonhosen
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    Yeah.........ouch

    & that's following a big price drop over what it used to be:D
     
  10. AndyGo

    AndyGo
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    Hi Vonhosen,
    How do you get on with the Laserdisc thru the iscan ultra ? I'm thinking of getting one of these to help PQ with my Pioneer CLD-D925 to Panny WD6 plasma. Does it make a marked difference ? Also does it cause any further lipsynch probs due to additional processing ??
    Cheers,
    Andy G
     
  11. vonhosen

    vonhosen
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    AndyGo

    I enjoy my CLD-D925 thru the Iscan. I find picture slighlty better (it's more marked improvement for me on Sky rather than Laserdic).

    The Iscan does introduce slight delay with extra processing

    Suggest you demo before purchase
     
  12. Joe Fernand

    Joe Fernand
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    nobbydog

    The Behringer DSP2024P is the only box I can think of that's within budget - it is only stereo audio so no use with a 5:1 Digital signal from SKY+.

    The Behringer is a bit of a monster to set up - musicians obviously inhabit a world where assigning about 40 functions to each button makes sense!

    Once you get the hang of it the DSP2024P works well and you'll not need to touch it too often - though it is full rack width and the RED Displays are obviously meant to be viewed on stage with lots of dry ice effects to mute the 100w bulbs that seem to live behind the face plate.

    Best regards

    Joe
     
  13. nobbydog

    nobbydog
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    Thanks for that, Joe. I'm about to part company with over £4k for the following:
    Panny 6B
    HK DV25
    6.1 receiver, probably a Yamaha
    KEF KHT's
    Looks like the lip synch problem is a bit unpredictable. I'm intending to demo the kit (somewhere?) but am concerned that even a demo setup will not necessarily perform the same whenm I but it and put it in my lounge. Guess I'll just have to hope for the best (do you think I'm getting a bit paranoid about this!!??!!). Thanks for the comments.
     
  14. GreenBhoy

    GreenBhoy
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    Nobbydog

    You may be very lucky...I have a Panny 6 with no lip sync issues whatsoever (and no discernable banding, ghosting, flicker etc)

    Maybe I'm lucky (or just not as sensitive to lip sync as others). My wife and children have never mentioned seeing lip sync...

    I too was worried about this issue before buying, but took the plunge and I am totally delighted....:D

    Regards GreenBhoy
     
  15. PaulSeales

    PaulSeales
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    What sort of kit are you using Greenboy?

    I'm just looking to buy one of the Panny 6's now and too am worried about lip sync.
     
  16. PVR

    PVR
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    I have set up the Behringer ok. Took about 30 minutes to setup about 20 different delays. And to be honest, I have set it to the 80 Ms and have never changed it from that in the last 6 months or so.

    But, only works with analogue though, which is fine for just Sky.

    Regards,

    PVR
     
  17. GreenBhoy

    GreenBhoy
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    Paul

    I think that I have now updated my signature...:lesson:

    Panny 6WB in Silver
    Sony STR-DB925 Amp
    Sony DVP-S725D DVD player
    Sony VTX-760U Sky Digibox
    Sony Nicam VCR
    Sega Dreamcast
    PC

    Regards GreenBhoy
     

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