Agreed. My personal DSLR records AVCHD and it looks great, but I always
transcode to DNxHD to edit.
On Feb 2, 2013 7:22 AM, "Roger" <
rogershuff@yahoo.co.uk> wrote:
> **
>
>
> The data rate is much less of an issue here than the CPU overhead in
> decoding and displaying the AVCHD as you edit. AMA link, subclip selects
> and transcode to an Avid codec. A much better experience.
>
> On 2 Feb 2013, at 05:45, Mark Spano wrote:
>
> > 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
> >
> >
> >
>
> With best wishes,
> Roger Shufflebottom
> +44 7973 543 660
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
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