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Old May 5, 2010, 1:15 PM   #31
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OH... and one other thing... if you're DIRECT-EDITING a timeline full of LONG GOP file types, then watch out for the LONG GOP audio/video synchronization issue to appear from time to time.
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Old May 6, 2010, 3:47 AM   #32
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Thanks for the advice, I will look closer at those problems even I didn't noticed it until now. Usually with virtualdub I stop and cut on keyframes when I can, never noticed audio desync (I convert to avi PCM audio before). On CS4 I used avisynth and didn't have any problem on multiple sequences, no noticed "blips". On CS5 I just edited a 3 minutes 1080P30 HQ extract. Since it is demo version and I did it fast, I only used a 1280*1080 profile, with preview at 1:4, was very fluid on my core2[email protected], 4GB RAM. Didn't pay much attention to audio but I will next time.

Of course I'm more used to edit DV videos, which is easier, but since 2 years I started with HD MOV MPEG4. First problem was the .mov format which isn't recognised correcly and often too slow to edit. Then I found mpeg4cam2avi, could have avi files with PCM audio (to avoid ac3/mp3 desync or compatibility problems) and with ffmpeg codecs could open it in virtualdub to apply filters, just perfect. Then I tried to open .mov on premiere CS4, too slow. I installed avisynth and it was OK.

I go to LA and SF in a week, and will have lots of FULLHD videos to edit. Will be a great test for some edit in CS5 demo.

PS :the long GOP problem as described in the article is from 2007 with most of the time monocore or slow frequency dualcore processors with 2GB RAM... We are in 2010, most of desktop systems for video edition have quadcore and 4+GB RAM. I really think the performance problem is not as important as it was 3,5 years ago. Even if editing a full HD video with real time effects would require 3* faster computers than what we have to be perfect (or specialized hardware), I admit...

Last edited by Xtsea; May 6, 2010 at 4:02 AM.
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Old Aug 24, 2010, 5:50 PM   #33
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Quote:
Originally Posted by dahauss View Post
Can someone recommend a video camera that is 1080P, MPEG-4, SDHC card compatible and has a MIC INPUT? would also like one good in low light and good on color and with optical image stabilizer if possible... Is there one under $500??


Thanks...
At my opinion, many SANYO XACTI models have got the 80% of your desire !
The MICRO input was already available on the 2007 HD1000 model
and is still on 2009 HD 2000 ;-)

A GOOD MICRO ? XACTI HD2000 :
This small detail that does not look anything but that changes everything: the microphone jack. To understand his interest look at the charts of all camcorders and you will see that it is a rare commodity. Located at the front of the handle, it allows you to connect an external microphone, which is very useful to have an optimal sound (even if the microphone's HD2000 is pretty good). The HD2000 is the microphone jack type mini-jack as found on some mobile phones. But the power adapter supplied can connect all the microphones mini-Jack. Finally, a headphone jack is also present.

SOURCE : http://www.lesnumeriques.com/sanyo-x...9_4966_27.html

Have a look on my personal XACTI reviews ...
http://www.anjoyplanet.com/video/sample.html
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Old Aug 24, 2010, 6:30 PM   #34
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Well, I agree that if one is bent on buying Sanyo, then the VPC-HD2000 -- the more expensive model that includes the external microphone input -- is the model to buy.

There are, however, less-expensive models with external microphone inputs, including:

1. Kodak Zi8:

http://store.kodak.com/store/ekconsu...ctID.156585800



2. Kodak PLAYTOUCH:

http://store.kodak.com/store/ekconsu...ctID.200992300



3. Creative Vado HD 3rd Generation

http://us.store.creative.com/Vado-HD...B002P3F5DM.htm



...And then there's this fantastic new helmet cam...

Drift Innovation HD170:

http://www.driftinnovation.com/en/hd170-action-camera



...and now there are the high definition video cameras being built into the newest Apple iPhone and iPod Touch models! They also have the ability to use external microphones.

So the feature is finally catching on and consumers will wise up eventually.
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Old Aug 24, 2010, 7:57 PM   #35
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Quote:
Originally Posted by Private Idaho View Post
...And then there's this fantastic new helmet cam...
Drift Innovation HD170:
http://www.driftinnovation.com/en/hd170-action-camera
Very interesting ! Thank's
really GREAT VIDEO SAMPLE there !

I just had a look on the last listed "Drift Innovation HD170"
-->
How do you interprete this file format ?
File format: .MOV -- Video format: H.264 ???

Is it MP4 ? or mpeg ?
and pitty that the zoom is only a digital one...

--------------------------------------------------------------------

I just find this sportiv FULL-HD CAM : VholdR HD Contour 1080p
--> around 300$

Full HD - 1080p (1920 1080) @ 30 fps
Tall HD - 960p (1280 960) @ 30 fps
Action HD - 720p (1280 720) @ 60 fps
Contour HD - 720p (1280 720) @ 30fps
Fast SD - WVGA (848 480) @ 60fps
135 degree wide-angle lens / 5-megapixel sensor
Built-in microphone (Adjustable)
Quicktime MOV H.264 with AAC audio
MicroSD / SDHC up to 16GB / Up to 8 hours of HD video
Rechargeable lithium ion battery - Up to 3 hours of recording time
iPod (USB) Compatible Charge
Adjustable Contrast, Light Metering, Exposure and Sensitivity Mic
Fits TRailTM VholdR mount system
Easy Share software and EditTM




with it waterproof box for ""ContourHD":


...and I'm sure a lot of... will arrive soon
;-)

Last edited by anjoy; Aug 24, 2010 at 8:25 PM.
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Old Aug 24, 2010, 8:27 PM   #36
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We maybe should open a new subject !
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Old Aug 24, 2010, 8:37 PM   #37
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Yes, the Drift Innovation HD helmet cam utilizes H.264, which is a high-quality variant of MPEG-4.
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