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supercoolman Posts: > 500
SD823 is probably real. wonder if Sony choose not to release flagship on 820 due to some bug in the silicon
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Posted: 2016-04-04 03:56:56
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supercoolman Posts: > 500
wonder when sony can start selling XQD microSD cards and support them on its smartphones
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Posted: 2016-04-04 05:21:14
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^^^ AFAIK, XQD is based on PCIe standard, while new SoC supports PCIe ( 820 have 2x lane ), the standard is completely incompatible with microSD, thought the SD standard support a specification called SDIO which permit transferring data other than for storage, it's very slow compared to PCIe, the SDIO supports 200MB/s and XQD v2 support almost 1GB/s...
the only method is to try to use the same pins count as a native XQD, the the reader is capable to identify the card and switch between XQD and SD depending on the card.. and this will require a UHS-II compatible reader as the UHS-I and lower doesn't have the enough pin count to handle PCIe x1 signals and power...
But, the XQD is no where as popular as other cards, and the current needs and abilities of microSD is enough for a smartphone... the advances in the internal memory UFS 2 for example is very good, and having more than 64GB of internal + microSD expansion is enough for 95% of users.. the microSD will only be used as a media storage for music/video collections.. and camera pictures/video, which doesn't need that much speed to worry about
with Android 6.0 you can make the microSD looks like a part of the internal memory, and thought not all manufacturers enabled this feature, but lets admit, those manufacturers already uses a far faster internal memory, so supporting this might actually reduce performance.. this feature is intended for lower end phones with low internal memory... at this time, a 64GB or 128GB internal memory with microSD capability is enough for most users
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Posted: 2016-04-04 08:10:06
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supercoolman Posts: > 500
^^^
how about recording 4K raw videos or pictures?
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Posted: 2016-04-04 09:38:13
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Raw pictures doesn't need that much speed, a 21MP RAW picture will be less than 30MB, which you can save in a second with a new UHS-1 U3 microSD ( not yet with UHS-II )
a 4K raw Video ?? on a smartphone !! we're not in April 1st dude !!
a 4K/8bit/30fps requires 405MB/s, and that's the minimum sustained speed, so even high-end cameras requires SSD's to have this data as no HDD is capable of sustaining such speed..
and this is just the storage... you need the SoC to support this also, maybe if you have some RED processor inside the phone then you can REDCODE compress the RAW data into more manageable speed
TBH, I'm not getting the idea of having RAW picture on a smartphone in the first place while it's a plus and cool thing.. how much better it will be ? at the end it's a smartphone sensor.. very small size and too much noise... and now we're talking about RAW video ?
[ This Message was edited by: Xajel on 2016-04-04 13:32 ]
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Posted: 2016-04-04 11:02:35
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Frankly speaking , raw video is just too much on phone . Buy dedicated video recorder if that's what you desire to film on ... 4k video is already very high end to me. The most I take full hd video . Not stepping into 4k domain yet .
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Posted: 2016-04-04 15:01:45
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supercoolman Posts: > 500
just giving an example.
I thought Z3+/Z5 already record 4K with some hot compression? not sure about the compression quality
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Posted: 2016-04-04 17:55:05
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Wouldn't smart compression over RAW 4K be prefered?
I don't see how 4K RAW format would be of any good use in a phone. That is probably something only a cinematographer would want.
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Posted: 2016-04-04 21:15:33
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^^^ Yes it can, and pro camcorder already have such support, RED cameras have REDCODE compression which can compress that 405MB/s to almost 35MB/s but that's not lossless, that requires a hell of processing power...
If you need lossless, then a compression ratio of 3:1 is mathematically lossless ( visually undetectable )... but in either way... we're talking about a smartphone after all there's absolutely no meaning of having RAW 4K support in the first place
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Posted: 2016-04-05 09:14:00
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The more time is passed, the more I feel peoples are disappointed by Sony's X Performance
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Posted: 2016-04-06 15:50:54
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