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Post by musik on Dec 30, 2022 13:21:36 GMT
I need to buy a sd card for my new Zoom recorder, released in 2021.
The thing is the cards recommended in their list online are all a bit slow compared to some newer ones on the market.
I've thought about a Sandisk Extreme Pro sdxc 64 gb, with a reading rate at 200 mb/sec and a writing rate at 90 mb/s.
But in their list with seven 64 gb sd cards we have Sandisk sdsdun4-064g-gn6in and Kingston sds2/64 gb.
The Kingston card has a 100 mb/sec reading rate and a 10 mb/sec writing rate.
In 1997 I bought a pc and was told a hdd can be both too slow and too fast - it must match the rest.
Q: Can a sd card be too fast?
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Post by yeokel on Dec 30, 2022 13:42:39 GMT
Working on the principal of what ‘ll hold a lot will hold a little, I think that a card that will accept a fast data stream will accept a slower data stream.
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Post by musik on Dec 30, 2022 13:58:25 GMT
Working on the principal of what ‘ll hold a lot will hold a little, I think that a card that will accept a fast data stream will accept a slower data stream. So I could go for the Sandisk Extreme Pro then. It would be great since it's within walking distance from here. Most cards in their list are only sold online. Why I couldn't get a too fast hdd they said, was because it would have to wait for the stream and eventually the system could stop. |
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Post by metalhead on Dec 30, 2022 14:53:55 GMT
No. The flash memory controller which is part of the camera, phone, PC etc is what negotiates the transfer speed with the card. The card can have a maximum transfer rate that exceeds the possible performance of the controller. Equally, the controller may have to perform at lower than the maximum transfer rate possible.
So no, a SD card cannot be too fast. HOWEVER, a SD card can be unsupported. There are multiple revisions of SD including the original SD, then SDHC and UHC etc. Just check that the device supports the technology of the card you intend to buy. Google will help with that.
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Post by metalhead on Dec 30, 2022 14:59:59 GMT
Working on the principal of what ‘ll hold a lot will hold a little, I think that a card that will accept a fast data stream will accept a slower data stream. So I could go for the Sandisk Extreme Pro then. It would be great since it's within walking distance from here. Most cards in their list are only sold online. Why I couldn't get a too fast hdd they said, was because it would have to wait for the stream and eventually the system could stop. You can't get too fast a HDD because storage is almost always the slowest core part of any computer system. Your fastest NVME is still dog slow compared to the rest of your PC. That's why people at the 'power user' end of the spectrum are going back to software Ramdisks. I thought we had left such sketchy data evaporating solutions in the 90s and 00s where they belong, but alas with data backups being so easy these days, there's no reason you can't run a Ramdisk fairly safely... Any Ramdisk blows the fastest NVME to smithereens. |
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Post by musik on Dec 31, 2022 0:06:29 GMT
No. The flash memory controller which is part of the camera, phone, PC etc is what negotiates the transfer speed with the card. The card can have a maximum transfer rate that exceeds the possible performance of the controller. Equally, the controller may have to perform at lower than the maximum transfer rate possible. So no, a SD card cannot be too fast. HOWEVER, a SD card can be unsupported. There are multiple revisions of SD including the original SD, then SDHC and UHC etc. Just check that the device supports the technology of the card you intend to buy. Google will help with that. The card reader on the hardware has a print saying "Sdxc" on the slot and in their recommended card list I find both sdhc and sdxc cards. I bought the fast sdxc card I mentioned above. I will test it tomorrow hopefully. The salesperson told me buying a card with the specs writing speed 90 mb/s and reading speed 200 mb/s, instead of one in the list with a writing speed 10 mb/s and reading speed 100 mb/s is an overkill, but it will work. Thanks! 🤠 |
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Post by musik on Dec 31, 2022 17:29:30 GMT
I will test it next week.
Too much to do atm.
⭐
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Post by musik on Jan 10, 2023 21:26:52 GMT
I bought the Sandisk Extreme Pro 64 gb Sdxc card, with a reading speed of 200 mb/sec and writing speed 100 mb/sec. Overkill, said the sales person.
It was a bit difficult to find any of the recommended sdhc and sdxc cards for the digital recorder, except if you bought one online.
They all had a slower writing speed, 10-40 mb/sec. The reading was often 90-100 mb/sec.
Test conclusion: I haven't found any problems so far. However, the wave form isn't visible in real time on the recorder's display as I record, there is a delay before it's written. But no clicks, drop outs or sound latency.
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Post by yeokel on Jan 10, 2023 21:50:14 GMT
Thanks for the update.
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Post by metalhead on Jan 10, 2023 22:04:31 GMT
No idea what waveform you're talking about, but I can say with some confidence any lagg will not be caused by the write speed of the card.
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Post by musik on Jan 10, 2023 23:37:01 GMT
No idea what waveform you're talking about, but I can say with some confidence any lagg will not be caused by the write speed of the card. The waveform in real time of the sound being recorded. I might buy another sd card from their recommendation list instead to see if there's any difference. 🤠 I'm going to need several cards anyway. |
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Post by metalhead on Jan 10, 2023 23:49:32 GMT
No idea what waveform you're talking about, but I can say with some confidence any lagg will not be caused by the write speed of the card. The waveform in real time of the sound being recorded. I might buy another sd card from their recommendation list instead to see if there's any difference. 🤠 I'm going to need several cards anyway. To produce that waveform, the sound will be running through a piece of code that generates it. It SHOULD be real-time but depending on the CPU which will be some tiny little ARM or MIPS thing, it could run slightly behind. Said code will be run exclusively in memory only and have no impact on your SD read/writes. Imagine someone creating a product where the quality of data IO was impacted by a visual gimmick? They'd never sell another product again. Equally, imagine creating a product where a visual gimmick could be impacted by data writes. The only time it should be leggy or more likely grind to a halt is during a data write failure. I expect all of your SD writes will be buffered with some sort of write-behind to ensure safety. |
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Post by musik on Jan 11, 2023 9:35:12 GMT
The waveform in real time of the sound being recorded. I might buy another sd card from their recommendation list instead to see if there's any difference. 🤠 I'm going to need several cards anyway. To produce that waveform, the sound will be running through a piece of code that generates it. It SHOULD be real-time but depending on the CPU which will be some tiny little ARM or MIPS thing, it could run slightly behind. Said code will be run exclusively in memory only and have no impact on your SD read/writes. Imagine someone creating a product where the quality of data IO was impacted by a visual gimmick? They'd never sell another product again. Equally, imagine creating a product where a visual gimmick could be impacted by data writes. The only time it should be leggy or more likely grind to a halt is during a data write failure. I expect all of your SD writes will be buffered with some sort of write-behind to ensure safety. And I expect the more tracks created the more likely it happens. This was an acoustic guitar track going in via a phantom powered mic. I've noticed before (when I used an external sound card plus a pc), acoustic microphone tracks with complex sound patterns in an open space are often more likely to have a lag compared to lined instruments. |
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Post by marylandstoke on Jan 11, 2023 12:48:51 GMT
No idea what waveform you're talking about, but I can say with some confidence any lagg will not be caused by the write speed of the card. The waveform in real time of the sound being recorded. I might buy another sd card from their recommendation list instead to see if there's any difference. 🤠 I'm going to need several cards anyway. When does the new album drop musik? |
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Post by spiderpuss on Jan 12, 2023 9:15:49 GMT
The speed of an SD card depends on a myriad of things, such as cable to connect something, an adapter coming in the middle or the CPU of the device not being up to scratch to even read 1/2 your card's capabilities. Just by putting a poor cable in the way can reduce speeds by up to 3/4!
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