: AKIBA TV: Sanyo Xacti DMX-HD1, the monster!

Posted on Wed Jan 11, 08:54 by
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how much will the new xacti be at release? and is it released yet?

Posted on Wed Jan 11, 09:09 by Daimaou
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Posted on Wed Jan 11, 12:56 by Hates_
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I'm glad I bought my C6 and didn't wait for this at €900!

Posted on Thu Jan 12, 01:41 by
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doh! i guess i forgot to read thru with my excitement ~_~ wah! that much for 30 mins of HD quality, guess I'll go grab a C6 then ;_;

Posted on Fri Jan 20, 04:47 by another guest
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Hi

Is the flash video originally done on the Sanyo, I know somebody who thinks it is?

If it is from the Sanyo, would it be possible to post it as another mp4 file? I can't get the flash to play properly and it wants to reload all the time.

Thanks

Wayne

Posted on Sat Jan 21, 01:20 by Daimaou
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Posted on Sat Jan 21, 04:03 by another guest
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Thanks for that. Actually, after I posted, the guy realised that you were not holding a Sanyo camera remote { .

Wayne.

Posted on Sat Jan 21, 04:10 by another guest
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Actually, here is a thread that does have some more Sanyo HD1 footage (but put through Media player).

http://www.dvinfo.net/conf/showthread.php?t=58228

Thanks

Wayne.

Posted on Sat Jan 21, 05:00 by Daimaou
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I don't understand, the 40MB of video took with the DH1 that I give on the news is not enough ? This is not a WMV...

Anyway Sanyo promise me a sample to review... I wait for it

Posted on Sun Jan 22, 03:14 by another guest
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These people are prosumers and professionals, so it is important the quality of image they get under different situations.

With low bit rate compression codecs, one of the biggest problems is movement and image change, because the codec does not have enough bandwidth to reproduce the image accurately (producing fine blocking lower resolution etc, even caused by camera flash in dark scene, try with the HC1). There are also other problems where the image is not accurate, and has codec mistakes. The bigger the screen the more these are noticeable.

The footage on the preview here is good, but is not complex enough to stretch the codec and it's bandwidth to it's limit to see where the cameras codec breaks.

For consumers the image quality of the Sanyo maybe OK, but for professionals they need better image to play with in the first place (editing, colour balancing, effects etc) because image quality can get worse each time you do these things, plus it looks better to have better image (much more so on Cinema screen). True high end professional video formats may have around double the bandwidth of quality consumer formats of similar codecs, and a good cinema format double thats again. So that is over 25 to 50mb/s versus the 9Mb/s of the Sanyo (I add a bit more because codec movement problem/screen change issues respond better to higher bandwidth).

So, they spend a lot of time examining footage for problems in detail. But you are right, the WMV file version is not so good, it ads, maybe, it's own problem and we prefer native footage.

We argue about where ever the camera is using normal Mpeg4 or h264 (called Mpeg4 part 10) or on the ambarella h264 camera codec chip, maybe you could ask Sanyo for us?

Have a look at this link, it has links about the new cameras using h264 for around the same price as the Sanyo, and future possibilities with more bandwidth and higher price. These are worth chasing and reviewing.

http://www.dvinfo.net/conf/showthread.php?t=58391


Thanks

Wayne.