Re: [Avid-L2] Re: Sony PVM vs BVM OLED processing delay for sync sound?

On an informational note, the FSI monitors I have all output audio
de-embedded from the SDI stream in perfect sync with picture. This has been
a great help in solving the issue. We have a Leitch SDI DA card that
handles a separate video delay to secondary monitoring (large client view
plasma) which is calibrated to be in picture sync with the FSI.

Any station that doesn't use an FSI monitor as the primary uses a RANE
audio delay unit that can be set in milliseconds or half-frames. This is
measured easily using a Syncheck A/V delay measurement device.

On Fri, Aug 17, 2012 at 1:13 PM, johnrobmoore <bigfish@pacbell.net> wrote:

> **
>
>
> That's where I get confused what happens on the first frame where there
> are no previous frames? I thought the kind of display choices involved look
> at frames before and after the current displayed frame kinda like a gop
> structure. I'll have to reread your article with that in mind. Just wish
> Sony would delay the audio jack out of the monitor to compensate. Oh well
> there's always Mr. Behringer.
>
> --- In Avid-L2@yahoogroups.com, "Terence Curren" <tcurren@...> wrote:
> >
> > The BVM buffers previous frames. That is how it was explained to me.
> >
> > --- In Avid-L2@yahoogroups.com, John Moore <bigfish@> wrote:
> > >
> > > Sony PVM vs BVM OLED processing delay for sync sound?
> > >
> > > I know that my Sony PVM OLED 2541 has up to about 2.5 frames of
> processing delay when in the highest quality setting. I also understand
> this effects audio sync even if I monitor the audio through the monitors
> own audio out jack which is the dembedded audio from SDI input. I have
> been told the BVM monitors don't have the processing delay issue and I'm
> curious how that happens given the need to get both Psf or interlace fields
> into the monitor before it can be processed for the Progressive display on
> the OLED screen. Does anybody know if the BVM OLEDs are just delaying the
> audio signal out of the monitors audio jack or is the circuitry just
> blazingly fast compared to the PVM. I see the PVM is a 10 bt engine and
> BVM a 12 bit engine under the hood. I anybody running a BVM OLED with a
> separate monitor mixer coming straight out of the Avid or whatever LED and
> is that audio in sync with the BVM in highest quality mode? I've seen
> charts on the PVM
> > > display processing delay for the various modes but haven't found the
> same for a BVM model. Just curious, still very happy with the PVM.
> > >
> > > John Moore
> > >
> > > Barking Trout Productions
> > >
> > > Studio City, CA
> > >
> > > bigfish@
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>
>
>


[Non-text portions of this message have been removed]



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