[Whitigir]

Hi @Sonywalkmanuser , what is the best SD card for Sony players and how much does it cost? Sorry I'm too lazy to dig out the posts. Thanks!

I would be either using EDGE, or Sony 64Gb for my very favorite albums
https://www.mouser.com/ProductDetail/SanDisk/SDSDQAD-400G?qs=wUXugUrL1qzFPeZ/4fFneg==
Then MicronSD if you want a lot more storage. It is just that this card has a more references and neutral signatures than being musical than the 2 above

 

[Sonywalkmanuser]

@Whitigir
Found a very interesting comment in the ars Technica article:

• dmoore375Smack-Fu Master, in trainingjump to post
  Okay, everyone here needs to take a step back. I am an actual analog circuit designer, so here is my take:
  
  First of all, let me start by saying I'm sure, just like everyone else, that these devices have no practical effect on the audio produced by pretty much any practical system. That said, people seem to be confused about the nature of noise in a system.
  
  As the story correctly notes, digital systems are inherently noise resistant, and often include error correction. There is no SD card or cable in the world that will help improve digital transmission if all the data is already being successfully transmitted. However, analog systems are susceptible to noise. In fact, a significant amount of analog design is dedicated to dealing with noise. In addition to random noise, which is introduced by thermal movement or other random processes in the devices, analog signals are also susceptible to interference, or other nearby signals which can corrupt the analog signal. Nearby electromagnetic fields can couple to analog traces on the board, degrading performance. A significant effort goes into carefully routing and shielding analog traces, as well as moving sources of interference further away.
  
  High speed digital systems are a large source of interference. The fact that digital systems involve several wires switching at "full swing" at high frequency means that it produces a comparatively large electromagnetic field in the immediate vicinity. Again, a significant effort goes into keeping digital and analog components apart from each other in high quality audio systems. If your analog trace goes next to a memory running at hundreds of MHz, it will effectively increase the noise floor of your audio.
  
  It is conceivably possible that Sony actually did design an SD card which generates less electromagnetic interference (EMI). This could conceivably lessen the amount of interference coupled into an audio signal somewhere. That said... it's not going to make any difference in reality. If the SD card noise was having a practical effect on your audio then the whole systems was crap to begin with. So, as I think everyone in this thread can agree, this is snake oil.
  5 posts | registered Jun 24, 2014

 

[Whitigir]

@Whitigir
Found a very interesting comment in the ars Technica article:

• dmoore375Smack-Fu Master, in trainingjump to post
  Okay, everyone here needs to take a step back. I am an actual analog circuit designer, so here is my take:
  
  First of all, let me start by saying I'm sure, just like everyone else, that these devices have no practical effect on the audio produced by pretty much any practical system. That said, people seem to be confused about the nature of noise in a system.
  
  As the story correctly notes, digital systems are inherently noise resistant, and often include error correction. There is no SD card or cable in the world that will help improve digital transmission if all the data is already being successfully transmitted. However, analog systems are susceptible to noise. In fact, a significant amount of analog design is dedicated to dealing with noise. In addition to random noise, which is introduced by thermal movement or other random processes in the devices, analog signals are also susceptible to interference, or other nearby signals which can corrupt the analog signal. Nearby electromagnetic fields can couple to analog traces on the board, degrading performance. A significant effort goes into carefully routing and shielding analog traces, as well as moving sources of interference further away.
  
  High speed digital systems are a large source of interference. The fact that digital systems involve several wires switching at "full swing" at high frequency means that it produces a comparatively large electromagnetic field in the immediate vicinity. Again, a significant effort goes into keeping digital and analog components apart from each other in high quality audio systems. If your analog trace goes next to a memory running at hundreds of MHz, it will effectively increase the noise floor of your audio.
  
  It is conceivably possible that Sony actually did design an SD card which generates less electromagnetic interference (EMI). This could conceivably lessen the amount of interference coupled into an audio signal somewhere. That said... it's not going to make any difference in reality. If the SD card noise was having a practical effect on your audio then the whole systems was crap to begin with. So, as I think everyone in this thread can agree, this is snake oil.
  5 posts | registered Jun 24, 2014

Pay attentions to the words “error corrections”

 

[tomwoo]

I would be either using EDGE, or Sony 64Gb for my very favorite albums
https://www.mouser.com/ProductDetail/SanDisk/SDSDQAD-400G?qs=wUXugUrL1qzFPeZ/4fFneg==
Then MicronSD if you want a lot more storage. It is just that this card has a more references and neutral signatures than being musical than the 2 above

Thanks for your recommendation!

 

[The1Signature]

Sony audiophile microSD? I missed that… more details?

Sony claims high-end SD card offers 'Premium Sound'

 

[Sonywalkmanuser]

Hi @Sonywalkmanuser , what is the best SD card for Sony players and how much does it cost? Sorry I'm too lazy to dig out the posts. Thanks!

It depends on the size you require, 1TB or above, it has to be micron I400

If 256GB fits your storage requirement then I recommend Swissbit, this is the card I am using and I can confirm it does improve the sound quality of my Walkman. It has more holographic soundstage, more microdetail and blacker background over internal storage.

https://www.mouser.ca/ProductDetail...M1MT-I-7G-211-STD?qs=sPbYRqrBIVmLv5sLjAf58Q==

From what I have heard, the SanDisk Edge 400GB is also a good card but is more expensive per GB.

 

[psikey]

If it don’t matter then Sony won’t have made an audiophile microSD card.

We are not taking about computer I/O operation from a programmer perspective but from an electrical engineering standpoint. EMI/RFI interferences to the circuitry. MicroSD card still draws power at idle and still is physically and electrically connected to the Walkman’s battery and circuit board.

Yes they would, to mark with a premium price and some people pay it.

I use industrial cards at work for their durability/life and use in electrically noisy environments (switch gear rooms).

They could well draw less power in a DAP I suppose.

I've never heard mSD card noise (electrical/switching) even with my SE846's on any DAP.

The 1s & 0s go from storage (mSD or internal) to working RAM to the apps.

If your 1&0s are getting corrupted then you really do have some big issues.

 

[tomwoo]

It depends on the size you require, 1TB or above, it has to be micron I400

If 256GB fits your storage requirement then I recommend Swissbit, this is the card I am using and I can confirm it does improve the sound quality of my Walkman. It has more holographic soundstage, more microdetail and blacker background over internal storage.

https://www.mouser.ca/ProductDetail/Swissbit/SFSD256GN1AM1MT-I-7G-211-STD?qs=sPbYRqrBIVmLv5sLjAf58Q==

From what I have heard, the SanDisk Edge 400GB is also a good card but is more expensive per GB.

Thanks!

 

[Whitigir]

Errors will happen everywhere, and it is regardless of digital or analog. Noises is noises, in analog signal, they are AC signals, such as in case of Vinyl, so they have crackles and pops. Digital signal noises is “voltage variations”. Voltage variations has a “parameters” to decide which is 1 and which is 0. For example, if the voltage drops below 0.05mV it is a 0, otherwise it is 1. So, physical vibrations, can change voltages, and this will contribute, be added to the values, what will happen if the algorithms doesn't know whether it should or not be rounding up or down ?

They can use Artificial Intelligent to solve this. If 8 out of 10, the values is higher, and only 2 of them the values is lower. The algorithms will correct it to be higher values and hence assigning “1” instead of “0”

You want to know the greatest effects of noises, vibrations, that results in voltage variations ? It is called “Piezo-Electric effects”. This is the principle operations of Oscillator clocks, which Amazingly, Sony has upgraded in the M2

You want to know error corrections ?

Oversampling is an error corrections
Feedback systems is error corrections

Error corrections is everywhere in digital worlds. Noises is a Form of errors, and errors will have to be corrected

 

[Whitigir]

Here is a paper that studying, researching, and developing errors in digital amplifications

Yes, it happens and will effect both Timing, and amplitude of a sound waves. Because the binary info is going to be a DC pulse!

what that means is that Timing = phase = sound stage (degradations)

Amplitude = power = Dynamic range

I continuously study, research, and learn about this hobby. I love it so much that I keep on learning, especially when something is observable to my ears, and MicroSD Do effect the sound performances. I am posting about a few technical reasons for it. All of what I posted is a results that happened after I observed the differences between Micron and Edge….etc…. The world revolves around enthusiasms, because the enthusiasts keep striving for innovations, and keep on studying. If I can, then all of you can as well

 

[Whitigir]

It depends on the size you require, 1TB or above, it has to be micron I400

If 256GB fits your storage requirement then I recommend Swissbit, this is the card I am using and I can confirm it does improve the sound quality of my Walkman. It has more holographic soundstage, more microdetail and blacker background over internal storage.

https://www.mouser.ca/ProductDetail/Swissbit/SFSD256GN1AM1MT-I-7G-211-STD?qs=sPbYRqrBIVmLv5sLjAf58Q==

From what I have heard, the SanDisk Edge 400GB is also a good card but is more expensive per GB.

Give it a try, you may love it, especially if you love and hear the differences with Micron. The Edge is like Sony audiophile card, but with better storage capacity. The price is a little too sour though, but is worth it if you want to have things as good as can be

 

[Sonywalkmanuser]

Just think about it for a second:

Sony, a company that co-invented digital CD PCM audio, and also invented SACD/DSD audio tech.

A company that does advanced CMOS sensors for your smartphone

A company that owns music labels and as well as many movie studios.

A company that created the PlayStation gaming console

Created the famous Trinitron CRT TV

Selling you a “Snake Oil” audiophile microsd card that does nothing?

I think the Sony Engineers do care about their company’s reputations

 

[Whitigir]

Just think about it for a second:

Sony, a company that co-invented digital CD PCM audio, and also invented SACD/DSD audio tech.

A company that does advanced CMOS sensors for your smartphone

A company that owns music labels and as well as many movie studios.

A company that created the PlayStation gaming console

Created the Trinitron CRT TV

Selling you a “Snake Oil” audiophile microsd card that does nothing?

I think the Sony Engineers do care about their company’s reputations

They have their culture behind it as well. Specially speaking, “honor” and “dignity”, forgotten words to many

 

[psikey]

Just think about it for a second:

Sony, a company that co-invented digital CD PCM audio, and also invented SACD/DSD audio tech.

A company that does advanced CMOS sensors for your smartphone

A company that owns music labels and as well as many movie studios.

A company that created the PlayStation gaming console

Created the famous Trinitron CRT TV

Selling you a “Snake Oil” audiophile microsd card that does nothing?

I think the Sony Engineers do care about their company’s reputations

That knows how to make profits, yep, we know Sony.

 

[Whitigir]

That knows how to make profits, yep, we know Sony.

The modern Sony , my ES-DAT tape decks has all OFC chassis, with Wood enclosure, and still cost less than WM1Z M1 or M2 when new, even when taking into the account of the inflations and whatever. The technologies that went into it were all breathe taking. I still enjoy DAT as a medium for digital music. While I think Sony can do better on 1Z pricing, I kinda like it where they priced it to compete to SP3K. Just the differences in build-quality is already satisfying. Sound preferences aside