Yeah, AVCHD is not good at all for editing. If they want you to work to
that, it's not gonna be fun.
AVCHD = long GOP interframe compression
AVC-Intra = intraframe compression, all I-frames, no GOP
You're on the right track with DNxHD 45.
On Fri, Feb 1, 2013 at 11:38 PM, Dom Q. Silverio <domqsilverio@gmail.com>wrote:
> **
>
>
> AVCHD is up to 28 Mb/s. It varies depending on implementation, but the
> upper limit is 28 Mb/s.
> DNX45 is a bit more predictable at 45 Mb/s. It is at least 61% higher.
>
>
> On 2/1/2013 11:24 PM, Steve Hullfish wrote:
> > As for 720P, I wanted to go 1080 because I didn't think you could get
> down to DNxHD45 with 720p...
> >
> > I still haven't figured out the various DNxHD formats that are available
> depending on the specifics of the format, for example, if you go RGB
> instead of YCbCr you are stuck with DNxHD220 4:4:4...
> >
> > I just want a decent looking, easy to edit, relatively small codec to
> suggest. I am pretty sure that this station IS a 720p station,
> broadcast-wise... I'll ask what their servers save stuff as.
> >
> > Anybody know the size difference between AVCHD and DNxHD45... I'll look
> on the Avid website to see if I can find it...
> >
> > Steve Hullfish
> > contributor: www.provideocoalition.com
> > author: "The Art and Technique of Digital Color Correction"
> >
> > On Feb 1, 2013, at 10:09 PM, Dave Spraker avid@spraker.tv> wrote:
> >
> >> That's whacked. 720p may be appropriate depending on their network
> >> affiliation, but AVCHD is a pain to convert to and from.
> >>
> >> Dave Spraker
> >>
> >>
> >> Western Rep | EditShare | Maxx Digital | Consulting | Sports Audio
> >>
> >> dave@spraker.tv dave@spraker.tv>
> >> (503) 897-0250
> >>
> >> www.westernrep.com
> >>
> >> www.editshare.com http://www.editshare.com/>
> >>
> >> www.maxxdigital.com http://www.maxxdigital.com/>
> >>
> >> www.spraker.tv http://www.spraker.tv/>
> >>
> >> https://www.vizify.com/es/50a32f618e76660002000521> See my vizify bio!
> >>
> >> From: Avid-L2@yahoogroups.com [mailto:Avid-L2@yahoogroups.com] On
> Behalf Of
> >> Steve Hullfish
> >> Sent: Friday, February 01, 2013 7:38 PM
> >> To: Avid-L2@yahoogroups.com
> >> Subject: Re: [Avid-L2] Isis Media Composer using AVXIntra as editing
> codec?
> >>
> >> Marc, You are correct. I'm mistaken. It's AVCHD. That's cool? These are
> MC
> >> 6.5 systems running on a mirrored Isis 7000 of considerable size.
> >>
> >> Their consultant told them to use AVDHC at 720p. I would prefer DNxHD at
> >> 1080.
> >>
> >> This is for a TV station in a major market. The news stuff is P2. The
> rest
> >> is all off of network servers, coming in as some flavor of MPEG2 HD.
> >>
> >> I was feeling like the system (which is brand-spanking new) was
> sluggish.
> >>
> >> If it's fine to edit with and it saves space, I'm all for it.
> Personally I'd
> >> prefer DNxHD and 1080, but that's just personal and I don't know that it
> >> would really look any better, but I feel like at DNxHD 45 it wouldn't
> save
> >> that much space over AVCHD and MIGHT provide better performance.
> >>
> >> Steve Hullfish
> >> contributor: www.provideocoalition.com http://www.provideocoalition.com
> >
> >> author: "The Art and Technique of Digital Color Correction"
> >>
> >> On Jan 31, 2013, at 11:23 PM, Mark Spano cutandcover@gmail.com
> >>> wrote:
> >>> Steve,
> >>>
> >>> Are you maybe confusing AVC-Intra with AVCHD? AVC-Intra (in MC) is a
> >>> 100Mbit/sec high quality intraframe codec suitable for editing,
> mastering,
> >>> shooting, etc.. (http://en.wikipedia.org/wiki/AVC-Intra)
> >>>
> >>> AVCHD (http://en.wikipedia.org/wiki/AVCHD) is an extremely efficient
> lossy
> >>> codec only suitable for shooting (sometimes) and highly compressed
> >>> delivery. And yes, you do want to get away from it quickly when
> bringing
> >> it
> >>> in for editing.
> >>>
> >>> AVC-Intra works well but I would say is sluggish compared to DNxHD
> (unless
> >>> you have the Nitris DX AVC-I chip, as Dave mentioned). However, it's
> not a
> >>> space saver or a lower quality codec.
> >>>
> >>>
> >>> On Thu, Jan 31, 2013 at 10:55 PM, Steve Hullfish
> >>> steve4lists@veralith.com >wrote:
> >>>
> >>>> **
> >>>>
> >>>>
> >>>> I'm freelancing for a place that has an Isis and Media Composer 6.5s
> >>>>
> >>>> When they were walking me through their standard procedures, the first
> >> one
> >>>> was to set the Media Creation settings to capture at AVCIntra... My
> >>>> previous dealings with AVCIntra as an editing format SUCKED. I thought
> >> the
> >>>> goal was to get AWAY from Intra as quickly as possible. They're
> actually
> >>>> intentionally taking media INTO AVCIntra on Avid. Is there any
> benefit to
> >>>> this? I doubt it saves that much space/bandwidth compared to DNxHD
> 45...
> >>>>
> >>>> There are multiple stations using AVCIntra as an editing media format.
> >>>> Does anyone think there's any good reason for that? I'm not being
> >> sarcastic
> >>>> or rhetorical. I want to know. I want to convince them to switch to
> 45,
> >> but
> >>>> that will be going against the advice of the "expert" that set this
> up.
> >>>>
> >>>> Steve
> >>>>
> >>>>
> >>>>
> >>>
> >>> [Non-text portions of this message have been removed]
> >>>
> >>>
> >>>
> >>> ------------------------------------
> >>>
> >>> Search the official Complete Avid-L archives at:
> >> http://archives.bengrosser.com/avid/
> >>> Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>>
> >> [Non-text portions of this message have been removed]
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Search the official Complete Avid-L archives at:
> http://archives.bengrosser.com/avid/
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
Search the official Complete Avid-L archives at: http://archives.bengrosser.com/avid/
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Avid-L2/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/Avid-L2/join
(Yahoo! ID required)
<*> To change settings via email:
Avid-L2-digest@yahoogroups.com
Avid-L2-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
Avid-L2-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
Friday, February 1, 2013
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment