Strange garbage in property info.

Started Apr 20, 2011 | Discussions
lacix
lacix Contributing Member • Posts: 612
Strange garbage in property info.

550D movie PAL25/NTSC30

After investigations of cracking sound problem, I have found this, at 30 fps movie setting

Compare it with the 25 fps info.! (On the left) No garbage, or sound problems.

Thanks for your help!

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MOD Olga Johnson Forum Pro • Posts: 24,092
Re: Strange garbage in property info.

lacix wrote:

550D movie PAL25/NTSC30

After investigations of cracking sound problem, I have found this, at 30 fps movie setting

Compare it with the 25 fps info.! (On the left) No garbage, or sound problems.

Your message is a little confusing. The left side is NTSC (29.xx) and the right is PAL (25).

So which one is giving you cracking sound problem? When do you hear the cracking sound? In Camera, on computer, on TV or ???

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Olga

cuak Contributing Member • Posts: 913
Re: Strange garbage in property info.

lacix wrote:

550D movie PAL25/NTSC30

After investigations of cracking sound problem, I have found this, at 30 fps movie setting

Compare it with the 25 fps info.! (On the left) No garbage, or sound problems.

Thanks for your help!

I assume the 25fps is playing smoothly and 30fps is playing with sound cracks and artifacts (you only have audio issues? or also image?)

The 25fps recording is using 43.8 mbps bitrate (or bandwidth if you like) vs 45.3 mbps on the 30fps recording... that could make the difference, maybe the SD card you use is not fast enough to keep up with a constant 45.3 mbps recording. Are you using SD or SDHC?

I wild guess tells me you are using SDHC class 4 (that's got a minimum sustained writting speed of 32mbps, you should definitely use SDHC Class 6, which gives you 48mbps instead)

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lacix
OP lacix Contributing Member • Posts: 612
Re: Strange garbage in property info.

Sorry Olga for my confusing statement.

I’m playing the original xxxx.mov file on my PC

The left info.(NTSC/30) as you can see, showing the “code” like garbage, and also has the SQ problem.

Sounds like over amplified peaks, but the picture frames are smooth, sharp, and free from artifacts
Yes, cuak..

I have suspected the SD card too, but I’m using, SanDisk Extreme 16GB class10 card

What could be, this “code” like garbage?

Thanks
UBL

 lacix's gear list:lacix's gear list
Canon EOS 5D Mark II Panasonic Lumix DMC-GM5 Sony Alpha a7R II Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Canon EF 24-70mm f/4L IS USM +7 more
MOD Olga Johnson Forum Pro • Posts: 24,092
Re: Strange garbage in property info.

What program are you using to read the file properties? I was going to view the properties of a file that I have here.

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Olga

lacix
OP lacix Contributing Member • Posts: 612
Re: Strange garbage in property info.

The program is "MediaInfo" part of K-Lite Codec Pac "Tools"

Thank's Olga, that would be great!
UBL

 lacix's gear list:lacix's gear list
Canon EOS 5D Mark II Panasonic Lumix DMC-GM5 Sony Alpha a7R II Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Canon EF 24-70mm f/4L IS USM +7 more
lacix
OP lacix Contributing Member • Posts: 612
Re: Strange garbage in property info.

Have no idea what happened in February. Four of the movies had the exact same SQ problems.(edited yesterday)

But now I just tried again (NTSC/30), and could not repeat this problem. “MediaInfo” looks just normal and no glitches with the sound either
Sorry for your time, and thanks both of you to trying to help!

Thanks!
UBL

 lacix's gear list:lacix's gear list
Canon EOS 5D Mark II Panasonic Lumix DMC-GM5 Sony Alpha a7R II Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Canon EF 24-70mm f/4L IS USM +7 more
Vipre77 Regular Member • Posts: 254
Re: Strange garbage in property info.

Sounds like the files were corrupted in some way. Could be a memory rd with some ad sectors. If subsequent writes go to the card, they may not necessarily go to the same bad sectors, making it hard to repeat it. Could be a hard drive in your computer on it's way out too. Or it could simply be something wonky with your k-lite codec pack install. I had it go goofy on my system recently. Uninstalling it and reinstalling the latest version fixed me up. I'd try that first.

These aren't the only possibilities, so don't think it has to be any of these. I mean, there's even an outside chance that there's a problem with the firmware in the camera, too. Lots of possibilities here....

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