Well I checked the machine in the alt home menu and it is set to PB in record mode. I assume that means I'm viewing with confidence head when in record which is reassuring. Now on the front panel of the BVW-70 it has the PB/EE switch which I always set to PB so it doesn't drop into EtoE during shuttle. There is also a confidence switch next to it. I've always figured if I didn't set the confidence to on I was not viewing the confidence head. On the SRW-5500 is there a confidence switch/menu item or is the fact that the PB/EE settings in the alt home menu are set to PB in Rec mean I'm viewing confidence head. Does the BVW-70 confidence switch only refer to audio confidence?
In a perfect world everything would be properly referenced and timed but when I run from facility to facility and mobile truck to mobile truck or stage it's not always practical to insist on referencing to external. Sometimes I just have to go with the flow whether I like it or not. I love getting down to the nitty gritty on this stuff because I often find my procedures can always be improved.
> "The problem I fear is that if I'm locked to external reference while
> recording something that may be locked but way out of time and during the
> recording everything looks okay E to E but then I go to playback the tape
> and the video plays back a 3rd of a field down with a bunch of sync cross
> hatch type stuff."
>
> Well then lucky for all of us, the 5500 has a Confidence head, something
> that has been around since the digital SD days. Monitor off the Confidence
> head, and you'll have layoff and QC done in one pass - hence "confidence".
>
>
>> On Tue, Nov 12, 2013 at 7:36 PM, johnrobmoore <bigfish@...> wrote:
>
> >
> >
> > Look I'm all for external reference. The problem I fear is that if I'm
> > locked to external reference while recording something that may be locked
> > but way out of time and during the recording everything looks okay E to E
> > but then I go to playback the tape and the video plays back a 3rd of a
> > field down with a bunch of sync cross hatch type stuff. It's been a long
> > time since I've had that happen but those scars are still there. That's why
> > I felt it would be safer to lock to internal video for blacking from the
> > internal signal generator. Apparently it's not but I've been asking this
> > over and over for years and even the Product Support people at Sony haven't
> > given me a convincing answer to the internal signal generator reference. I
> > kind of feel like Bob Z use to about how to properly reference the BVW 1800
> > decks using a short piece of coax looping from the machines video input
> > because he couldn't get them to play nice any other way.
> >
> >> > --- In Avid-L2@yahoogroups.com, Mark Spano <cutandcover@> wrote:
> > >
> > > Here's my bottom line on reference:
> > >
> > > What do you trust for clock timing? Your computer, or your ref generator?
> > > Me, I've seen so much bad and weird video that comes from computers
> > > (whether they be FCP / Avid / AJA / Nitris DX / BlackMagic / etc.) that I
> > > have no faith in it for a solid reference. So I (and my entire 14-bay
> > > facility) never do anything on these decks that requires changing the
> > servo
> > > off of External for reference. Well, except when you're using that good
> > old
> > > Teranex which throws timing out of whack.
> > >
> > > To me, any discrepancy in timing in my facility comes from the computers.
> > > And that gets resolved instantly by choosing External Ref in the Video
> > > Output Timing selector in your Avid (or Ext Ref setting in your AJA).
> > > Choosing Input as your servo reference is just a simple way to get a job
> > > done and it's fraught with potential problems. My whole job is to root
> > out
> > > potential problems and turn them into non-existent problems, and this is
> > a
> > > perfect case. Clock everything to one master reference generator and you
> > > bypass problem city.
> > >
> > > If your cable runs are extremely long for composite video (aka Ref) then
> > > you can run into issues. Always measure timing and integrity at critical
> > > points and keep runs short enough to eliminate noise. DA at regular
> > points
> > > and life is good. I've got 14 bays on the 8th, 6th, and 3rd floors of
> > this
> > > NYC building all locked nicely to one constantly running reference master
> > > clock.
> > >
> > > "Virtually every "VTR Tech" I meet from rental houses always suggests
> > using
> > > video input servo reference"
> > >
> > > This is because virtually every "VTR Tech" from those places is tired of
> > > hearing calls about "why is the stop light flashing" and "how do I adjust
> > > vertical hold on my layoff". This 'advice' is only for people who rent
> > > decks and have little to zero knowledge of how they should be used. My
> > > advice is to ask me, or ask Bob Z, who would (I am sure) tell them what
> > I'm
> > > telling you. And we both have loads of experience trying to scrub the
> > world
> > > of nonsense advice being passed off as sound…
> > >
> > >> > > On Tue, Nov 12, 2013 at 7:06 PM, johnrobmoore <bigfish@> wrote:
> > >
> > > >
> > > >
> > > > Be careful because if the Avid burps on output it often will send
> > unstable
> > > > video to the record machine before the machine has dropped out of
> > record.
> > > > This results in what acts like a control track break and even if it's
> > not
> > > > technically a control track issue the only solution is to do an
> > assemble
> > > > edit from that point on. This can be catastrophic if you are punching
> > a fix
> > > > into a completed master.
> > > >
> > > >
> > > > --- In Avid-L2@yahoogroups.com, <jciron2005@> wrote:
> > > > >
> > > > >
> > > > > I've been using Input Video for about a year on HDCAM 55's & 5800
> > with
> > > > no problem.
> > > > > It would not be my best choice but I had to one day and it worked
> > great,
> > > > so I've been doing it ever since
> > > > > with no problems
> > > > >
> > > > >
> > > > >
> > > > > ---In Avid-L2@yahoogroups.com, <bigfish@> wrote:
> > > > >
> > > > > I found the problem. This was a new vtr position that had not been
> > used
> > > > before for an HD deck and the HD output of the deck is normaled to the
> > HD
> > > > deck input so it needed to be dead patched to avoid a feed back loop. I
> > > > never ever ever feed video input to a deck when blacking because
> > contrary
> > > > to what you say it does have an effect on the servo reference if you
> > are
> > > > set to video input. The common issue I've encountered is your deck is
> > being
> > > > feed from the avid bay. I go to black a tape on the deck with it still
> > feed
> > > > the Avid output. I set the deck, be it digibeta or SRW 5500 and other
> > Sony
> > > > decks, to internal black generator. I start blacking and then I go
> > back and
> > > > quit out of Avid and open another project. The video startup glitches
> > that
> > > > are then feed to the deck will cause a servo rereference that you can
> > hear
> > > > at the machine while the drum servo tries to relock. I agree that if
> > I'm
> > > > set to external servo reference this might not happen but over the
> > years
> > > > I've seen many a time when locking the record machine to external and
> > not
> > > > incoming video can create issues if the timing of the decks input
> > signal is
> > > > out of it's window of acceptance.
> > > > >
> > > > > When digital cutting I lock the avid to reference and I lock the
> > deck to
> > > > external reference and everything is fine. It's the fact that the SRW
> > 5500
> > > > internal video generator seems to be vastly out of time with the rest
> > of
> > > > the world that I opted to use video reference for the servo when
> > blacking
> > > > internally. What is illogical is that if I set the deck to lock to
> > input
> > > > video and I set the machine to internal black the servo reference
> > should be
> > > > derived from the internal black signal and not what's being fed to the
> > > > video input connector on the back of the machine. In this case the
> > servo is
> > > > not referencing the actual video signal and that's where problems crop
> > up.
> > > > It's from years of 3/4 inch maintenance that I'm sensitive to Record
> > Lock
> > > > Phase type issues and that's what I'm trying to avoid here. I could be
> > I'm
> > > > just being overly cautious but it's been working a long time for me.
> > > > >
> > > > > --- In Avid-L2@yahoogroups.com mailto:Avid-L2@yahoogroups.com, Mark
> > > > Spano <cutandcover@> wrote:
> > > > > >
> > > > > > You say:
> > > > > >
> > > > > > "To be safe when blacking tapes I unpatch any video input and I
> > switch
> > > > the
> > > > > > servo reference to input video."
> > > > > >
> > > > > > to me, that means you are disconnecting ref. Don't do that, and
> > your
> > > > stop
> > > > > > light won't flash. Leave it on External SD Ref and you're good.
> > > > > >
> > > > > > Patching and unpatching video inputs while the deck is set to
> > Internal
> > > > > > Video Signal Gen BLACK has no effect - and will not glitch at all.
> > > > > >
> > > > > >
> > > > > > On Tue, Nov 12, 2013 at 5:32 PM, johnrobmoore <bigfish@> wrote:
> > > > > >
> > > > > > >
> > > > > > >
> > > > > > > I do not disconnect Reference I disconnect the HDSDI video input.
> > > > I've
> > > > > > > found with Sony decks that even if you are set to internal video
> > > > signal
> > > > > > > generator if there is a glitch on the video input the deck
> > burps. It
> > > > > > > doesn't make sense but that's how they work. Because of this I
> > always
> > > > > > > unpatch any video input to the deck before blacking.
> > > > > > >
> > > > > > > Another thing I notice is the output of the deck changes
> > drastically
> > > > in
> > > > > > > timing between normal input/EtoE mode and when set to internal
> > signal
> > > > > > > generator. Also when I switch to internal signal generator the
> > stop
> > > > light
> > > > > > > starts flashing like there is some sort of reference issue.
> > Because
> > > > of this
> > > > > > > I got in the habit of always setting the machine to servo
> > reference
> > > > the
> > > > > > > video input when blacking tapes.
> > > > > > >
> > > > > > > I just got of the phone with Sony and I'm going to try a first
> > > > birthday to
> > > > > > > see if that alters the behavior. I'm not sure this is a problem
> > but
> > > > the
> > > > > > > Sony tech confirmed you can black a tape with the machine
> > connected
> > > > to
> > > > > > > nothing. In that stand alone mode if I am monitoring the
> > composite
> > > > > > > character output I wouldn't expect the character box to sway left
> > > > and right
> > > > > > > in the picture which is what I'm seeing now. I'm sure I'd have
> > > > noticed this
> > > > > > > before if it always behaved this way.
> > > > > > >
> > > > > > >
> > > > > > > --- In Avid-L2@yahoogroups.com mailto:Avid-L2@yahoogroups.com,
> > Mark
> > > > Spano <cutandcover@> wrote:
> > > > > > > >
> > > > > > > > Q: why disconnect SD ref when blacking tapes? Seems
> > unnecessary.
> > > > The ref
> > > > > > > is
> > > > > > > > for servo - if you have no reference, then servo just runs off
> > AC
> > > > mains,
> > > > > > > > with all its potential irregularities. When blacking tapes,
> > leave
> > > > SD ref
> > > > > > > > connected, set servo ref to external, and set internal video /
> > > > audio
> > > > > > > signal
> > > > > > > > generators to black / silence.
> > > > > > > >
> > > > > > > >
> > > > > > > > On Tue, Nov 12, 2013 at 4:50 PM, John Moore <bigfish@> wrote:
> > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Got a rental SRW-5500 in today and I've set it up as I
> > always do.
> > > > > > > > > Starting with the Factory vtr settings and tweaking a few
> > thing I
> > > > > > > like. I
> > > > > > > > > run with external sync from composite SD black when doing
> > > > digital cuts
> > > > > > > to
> > > > > > > > > tape and it works fine. To black the tape I set the deck to
> > > > black on
> > > > > > > the
> > > > > > > > > internal signal generator and silence for audio. Whenever I
> > > > black tapes
> > > > > > > > > using the internal generator I always notice the stop light
> > > > flashes as
> > > > > > > if
> > > > > > > > > there was no sync or problem sync. To be safe when blacking
> > > > tapes I
> > > > > > > > > unpatch any video input and I switch the servo reference to
> > input
> > > > > > > video.
> > > > > > > > > On today's machine when I looked at the composite character
> > > > generator
> > > > > > > out
> > > > > > > > > while blacking I noticed the black box of time code was
> > > > dithering left
> > > > > > > and
> > > > > > > > > right consistantly and then I noticed the front panel of the
> > > > deck said
> > > > > > > lost
> > > > > > > > > lock. I busted the record and have found that unless I set
> > the
> > > > servo
> > > > > > > > > reference to auto or external when blacking internally there
> > > > appears
> > > > > > > to be
> > > > > > > > > some sort of unstable reference like issue. I have never seen
> > > > this
> > > > > > > > > behavior before and I've worked with this model a lot. You
> > can
> > > > black a
> > > > > > > > > tape with the machine standalone with no signals using the
> > > > internal
> > > > > > > > > generators so why is this machine unstable when not set to
> > > > reference
> > > > > > > the
> > > > > > > > > external sync source? This seems like a broke. Given I reset
> > to
> > > > > > > factory I
> > > > > > > > > feel the main settings are correct. Perhaps there is some odd
> > > > Novram
> > > > > > > > > setting that is tweaked that I've never had to deal with. I
> > do
> > > > realize
> > > > > > > > > that for some reason the internal video signal generator
> > always
> > > > seems
> > > > > > > to
> > > > > > > > > have a very different timing window compared to when the
> > deck is
> > > > just
> > > > > > > > > inputting a regular HDSDI source but I never seen this
> > > > instability on
> > > > > > > the
> > > > > > > > > composite output when blacking tapes. Anybody got an idea
> > what
> > > > might
> > > > > > > be up
> > > > > > > > > here?
> > > > > > > > >
> > > > > > > > > John Moore
> > > > > > > > > Barking Trout Productions
> > > > > > > > > Studio City, CA
> > > > > > > > > bigfish@
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
>
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