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HDV-DVCPRO HD-HDV?

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Gary Barr
HDV-DVCPRO HD-HDV?
on Jul 28, 2007 at 9:14:59 am

Hi,

Once you've transcoded to DVCPRO HD via Kona LHe and edited your piece, what's the best way back to HDV tape? I've done a QT export to HDV and played out and it looks good but is there a better/quicker method?

thanks.


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walter biscardi
Re: HDV-DVCPRO HD-HDV?
on Jul 28, 2007 at 11:17:16 am

[Gary Barr] "Once you've transcoded to DVCPRO HD via Kona LHe and edited your piece, what's the best way back to HDV tape? I've done a QT export to HDV and played out and it looks good but is there a better/quicker method?"

If you shot HDV and plan to master out to HDV, you should edit in HDV. You're adding two recompression cycles to your video. Once to DVCPro HD and then back to HDV. This will never look as good than if you just stayed in the HDV codec.

Transcoding to DVCPro HD should only be done if you are mastering to DVCPro HD or uncompressed HD. This is what we do here.

If your HDV deck has Component input, run the video directly to the HDV deck and let it re-compress the material to HDV.

Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.

All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html

Read my blog! http://blogs.creativecow.net/WalterBiscardi


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Gary Barr
Re: HDV-DVCPRO HD-HDV?
on Jul 28, 2007 at 5:37:43 pm

thanks Walter. there is just so much about HDV falling apart when you do any CC and I use Magic Bullet etc. do you think it would still be a good idea to stay HDV if you are colour correcting your sequences? comments abound like 'it's only a playback format, not an editing format' etc. has made me feel uneasy about editing HDV, but I'll give it a go next project to see for myself. thanks again.


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walter biscardi
Re: HDV-DVCPRO HD-HDV?
on Jul 29, 2007 at 7:25:53 pm

[Gary Barr] "
thanks Walter. there is just so much about HDV falling apart when you do any CC and I use Magic Bullet etc. do you think it would still be a good idea to stay HDV if you are colour correcting your sequences?"


Yes. If you take your HDV material, convert it to DVCPRo HD, do your edit, but then send it back to your HDV deck, you've just negated anything you've gained. All you're going to do is add more noise and compression to your project when it goes back to HDV.

HDV is not a great editing / mastering format at all, BUT if you are mastering back to HDV, stay in that format to minimize the recompression of the project.

Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.

All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html

Read my blog! http://blogs.creativecow.net/WalterBiscardi


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Gary Barr
Re: HDV-DVCPRO HD-HDV?
on Jul 28, 2007 at 5:45:10 pm

[walter biscardi] "If your HDV deck has Component input, run the video directly to the HDV deck and let it re-compress the material to HDV"

sorry Walter, can you explain this bit in detail please for dummies (me!)


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Bob Zelin
Re: HDV-DVCPRO HD-HDV?
on Jul 28, 2007 at 7:49:58 pm

Hi -
Gary, the Sony HDV VTR's - even the expensive HVR-1500, will not let you "master back" in an HD format, unless you go in Firewire - and HDV (not DVCProHD or uncompressed). So if you have put the effort to make a DVCProHD sequence (from a JVC BR-HD50 or HVR-1500, etc.) and now you want to master back to your HDV VTR, you CANNOT go into any of the BNC connectors on these VTR's (like the component inputs). Even the Sony HVR-1500 will only record back a SD signal to this VTR (unless you use the firewire input).

So what the hell is going on here - how are you supposed to use master back an HD signal to any of these VTRs, especially the more expensive HVR-1500 - YOU CANT (you can, but in HDV via firewire). Sony must have died being forced to make the HVR-1500, with it's
HD-SDI output and RS422, because Sony DOES NOT WANT HDV to be a professional format. I know this sounds rediculous to many of you, but I spoke with Sony at great legnth about this, and they told me that "professionals should not be using HDV as a professional format, and should be using XDCamHD if they want something cheaper than HDCam". That's Sony - not me - that said this. SO, what is Sony expecting you to do with your non-HDV master in your editing system - easy - get a $32,000 Sony HDW-1800 HDCam VTR to master out. Pretty funny - huh ? Well, this is the game that we play. The HVR-1500 is not a mastering machine for HD shows. I'm sorry - I don't make this stuff up.

bob Zelin


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msacci
Re: HDV-DVCPRO HD-HDV?
on Jul 29, 2007 at 6:45:07 pm

Bob may have something here, there are a lot of reasonably priced HDV to HD SDI bridges but the only thing I could find to go back is this box and it is pretty expensive (but cheaper than a HDCAM deck)
http://www.markertek.com/Product.asp?cat=VIDEOEQUIP&subcat=VIDPROCESS&prodC...


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walter biscardi
Re: HDV-DVCPRO HD-HDV?
on Jul 29, 2007 at 7:27:07 pm

[Gary Barr] "
sorry Walter, can you explain this bit in detail please for dummies (me!)"


Component out of your AJA to the Component input of your HDV deck. The deck will take the HD signal from the AJA and convert it to HDV.

But this will add more noise to your signal than if you just stayed in HDV throughout.

Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.

All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html

Read my blog! http://blogs.creativecow.net/WalterBiscardi


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Gary Barr
Re: HDV-DVCPRO HD-HDV?
on Jul 30, 2007 at 10:05:34 am

I'm getting ' this sequence is not compatible with HDV print to video'... am I doing it wrong?


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Michael palmer
Re: HDV-DVCPRO HD-HDV?
on Jul 30, 2007 at 7:57:25 pm

If you could purchase a device to encode mpeg2 HDV would anyone here want to use it?

MP


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walter biscardi
Re: HDV-DVCPRO HD-HDV?
on Jul 30, 2007 at 11:12:58 pm

[Gary Barr] "I'm getting ' this sequence is not compatible with HDV print to video'... am I doing it wrong?"

If this is a DVCPro HD timeline, that's correct. you can't print that to an HDV tape via Firewire.

Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.

All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html

Read my blog! http://blogs.creativecow.net/WalterBiscardi


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DaveT79
Re: HDV-DVCPRO HD-HDV?
on Sep 4, 2007 at 10:00:44 pm

Walter...

Please oh please tell me what HDV deck has HD-Component Inputs. I know of only one HDV VTR (Sony HVR1500) that has component input, but that's only for an SD feed. It does not take in HD, at least according to Sony's specs.

Have been waiting for an HDV deck that has HD-Component Inputs....so if you know of one, please let me know!

Thanks

Dave


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walter biscardi
Re: HDV-DVCPRO HD-HDV?
on Sep 4, 2007 at 10:58:40 pm

[Cow News Droid] "Have been waiting for an HDV deck that has HD-Component Inputs....so if you know of one, please let me know!"

Not offhand, I thought Sony had one but didn't realize it was SD input only. As I don't ever master back to HDV, I haven't really paid a whole lot of attention to that. Sorry about that.

Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.

All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html

Read my blog! http://blogs.creativecow.net/WalterBiscardi


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Michael Palmer
Re: HDV-DVCPRO HD-HDV?
on Sep 5, 2007 at 12:39:35 am

Now would you consider an Mpeg2 encder?
It is available soon from Convergent Design, XDR flash drive recover will encoder HDV on the fly.

MP


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lkgarza
Re: HDV-DVCPRO HD-HDV?
on Sep 5, 2007 at 7:28:34 am

exactly what is this encoder, xdr i assume is name but what does flash drive recover mean, i assume a flash drive is just that so how does that work. Sorry im a newbie with the tech terms, but i shoot a lot of hdv so this sounds really appealing to me.


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Michael Palmer
Re: HDV-DVCPRO HD-HDV?
on Sep 5, 2007 at 7:55:19 am

Sorry I meant to type the word "recorder"
typing from an iPhone isn't working to well. I'm on the road without my PowerBook.
Go to http://www.convergentdesign.com for the details


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