MicroSD Memory Card Transport Project

microzyma,

Other than having to get the SATA - SD writer for twenty dollars I had all of the parts on hand.

I later decided to get the MSI H81 board with two PS2 inputs so I could remove all USB capability - that was less than fifty dollars.

I had dismantled my PLAYER COMPUTER when I went with the SDTrans.

AS far as your noises - double check the output switches on the far left side of the board. I must admit I had mine set wrong to begin with and had those noises, too. AS soon as the music began all was fine. Check the manula but I think I remember if you are using PCM mode only, as I am, both switches should be OFF which is both of the toggles to the left.

I hope it is nothing more than that.

I had a strange experience with my ripper that is interesting as far as WINDOWS goes.

I had the two OS drives connected to the same MB to make it easy to go back and forth as I deleted stuff.

The other night I noticed that even though I had removed lots of junk from the dBpoweramp CDGrab.exe (what I use as my shell) when I selected the ripper I got the same screen that was loaded onto the COPY OS, the untouched screen.

I disconnected the COPY OS disk and the RIPPER OS would no longer load.

SOMEHOW Windows was pirating from the COPY OS what it wanted from the RIPPER OS. WINDOWS tentacles are very determined.

So I had to reload the basic config file from the initial installation and start my registry slimming from the beginning. THIS time when I would return to RIPPER after slimming with the COPY OS (I cannot do anything but rip CDs with the RIPPER OS so I need the COPY OS to work on the install) I disconnected the COPY OS disk from the MB.

dBpoweramp needed stuff left in the SOFTWARE hive that I had removed.

One would not think such a thing is possible but there it is!

Almost finished with the registry but the going, needless to say, is much slower this time since I have to shut down and reconnect drives. XP requires IDE so no HOT PLUGGING is allowed.

The COPY OS is fairly small, too, approx 250 mB but huge compared to the RIPPER at 32 mB.

Tonight I will listen to files ripped with the RIPPER standalone OS and see if I gain or lose anything. Of course, I figure it should be better but ...
 
microzyma,



AS far as your noises - double check the output switches on the far left side of the board. I must admit I had mine set wrong to begin with and had those noises, too. AS soon as the music began all was fine. Check the manula but I think I remember if you are using PCM mode only, as I am, both switches should be OFF which is both of the toggles to the left.
..

Thanks, Rick.

Changed the included supply for a diyinhk lt3042 one I had around and the improvement is dramatic. Will try a better supply soon.
 
Name a good LINUX based ripping program.

You must consider how absurd it looks to comment on things of which you know very little and seem to have even less desire to learn about.

WINDOWS is used because that is what dBpoweramp requires.

I have tried many of the LINUX based rippers. The only one that is any good requires the title you want to copy to be in a very small database which makes it useless for general purpose use. To expand, it would also require connection to the internet so it could see whether or not the title is in the database which would then allow a rip to be made.

I do not want any audio computer to be connected to the internet, ever.

Believe me, when you get XP to this size LINUX is cumbersome in comparison. There is nothing wrong with the basics of XP. It is when you try to make it do everything for everyone that one runs into problems with audio applications. If you tailor it for your purpose it is as good as we can get at this time.

For a computer based player the LINUX based WTFPLAY is the state of the art in my opinion. I have asked the writer to consider a ripping program but he has more to do than time.

Another case where there is no universal answer. Is there ever a case where there is a good universal answer? Not in my experience
 
Name a good LINUX based ripping program.

How about morituri, cdparanoia or rubyripper?

You must consider how absurd it looks to comment on things of which you know very little and seem to have even less desire to learn about.
You must consider how silly and childish it looks when you have to resort to attempts at personal attack whenever someone disagrees with you. I do have to point out that you are the one who stated that you are not a computer guy. I happen to be one - with 35 years of experience with customized, embedded systems as well as computer audio. Not that it proves anything, but you might be a bit more careful before making assumptions and allegations about things you don't know anything about.

And by the way, Linux is spelled "Linux", not "LINUX", unless you are shouting.

WINDOWS is used because that is what dBpoweramp requires.
But why use dBpoweramp in the first place?

I have tried many of the LINUX based rippers. The only one that is any good requires the title you want to copy to be in a very small database which makes it useless for general purpose use.
Which one was that, and what was wrong with the other ones?

To expand, it would also require connection to the internet so it could see whether or not the title is in the database which would then allow a rip to be made.
All the ones listed allow you to enter the information manually if you don't want to use an internet connection.

I do not want any audio computer to be connected to the internet, ever.
That is your choice - but you don't have to, of course.

Believe me, when you get XP to this size LINUX is cumbersome in comparison. There is nothing wrong with the basics of XP. It is when you try to make it do everything for everyone that one runs into problems with audio applications. If you tailor it for your purpose it is as good as we can get at this time.
Linux is much more modular and flexible, so much easier to tailor (which is why it is used in all the embedded devices and commercial music players). If you put in as much effort in tailoring Linux as you did with XP, you end up with a much smaller, more efficient result.

Another case where there is no universal answer. Is there ever a case where there is a good universal answer? Not in my experience
Indeed. It's just that most developers and vendors have concluded that Linux is a better solution for a customized or embedded music solution.
 
I would be willing to bet Julf has never touched an SDTrans much less owns one.

So, will an answer be forthcoming?

I have tried the LINUX rippers mentioned and did not find them to be as good, nor anywhere as easy to use, as dBpoweramp.

Not sure if one of those was the one dependent on the minuscule database. It is on my machine at home where I use UBUNTU for general use. Can't look it up.

So which one does Julf use?

I know nothing about assembling LINUX and only what I have learned about XP thorugh tinkering and suggestions from others.

XP is modular, too, though I am sure in a different way. Plenty of tools out there that I have learned to use so I will stick with XP until there is reason to go elsewhere. For this purpose.

You are always wanting me to try things yet you seem to have no intention of trying anything anyone else suggests. A little unbalanced?
 
is there a stateside source for pps caps?

Plenty of folks make these. WIMA has a good selection of them that you can get at MOUSER and DIGIKEY.

Why do you want to use them? Do you have space limitations where you intend to use them? I thought that was their only advantage. Never thought of them as particularly good for audio - unless this is a surface mount application and they might be one of the better choices for that.
 
I would be willing to bet Julf has never touched an SDTrans much less owns one.

I bet you would. :)

So, will an answer be forthcoming?
Doesn't seem likely, at least not to my questions.

I have tried the LINUX rippers mentioned and did not find them to be as good, nor anywhere as easy to use, as dBpoweramp.
"not as good" in what way? And I really didn't realize ease of use was a priority for you, if you are willing to accept having to type in all metadata by hand (or do without any metadata such as artist, album and track name etc.). But sure, we all have different priorities.

So which one does Julf use?
Morituri. Mainly because it is written in Python and easy to modify as needed (and it works well from scripts that allow me to automate the ripping).

XP is modular, too, though I am sure in a different way. Plenty of tools out there that I have learned to use so I will stick with XP until there is reason to go elsewhere. For this purpose.
You can remove processes and drivers, but the kernel, windowing and user interface are all a huge monolithic blob. The advantage of Linux is that everything is modular - if you don't need a graphical user interface, for example, you can easily leave it out completely.

You are always wanting me to try things yet you seem to have no intention of trying anything anyone else suggests. A little unbalanced?
What do you want me to try? And all I wrote was "I guess there is a reason why most dedicated players are Linux-based and not Windows-based", in response to your posting about all the hassles with Windows. I don't care if you try something or not - just wanted other people to know that there is an easier way.
 
Julf,

So what is the easier way?

Just plopping the CD in your regular machine? Well, that would be easier!

I suspect someone playing with LINUX would have problems, too, when trying to tailor the OS for one specific task.

I am not following an instruction book so I expect there to be setbacks which is how one learns. I do not think an amateur tinkerer running into problems is a proper indictment for WINDOWS. I am sure there are better ones.

I do not answer your questions since they have little to do with what my post was about.

Whether you use an SDTrans would explain why you are spending time at the SDTrans forum: is it because you have a shared interest in this device, or the more likely, your self-appointed protector of the assumed stupid which seems to be what motivates you?

Everyone knows the act by now. Even your assumed stupid folk pay little attention to your warnings. Think of the threads that have died from your incessant "posts"; people just go somewhere else or start another thread in hopes you won't find it. I guess you consider that a "victory". The rest of us shake our heads wondering why you persist in being the equivalent of the guy who hacks a website.

I certainly do not think you lack intelligence but your motivation in participating in DIY audio forums is a mystery. You are most likely to discourage people from trying anything than you are to suggest something to try or to report on something you have found or something that was suggested to you that worked. One wonders how much you just might contribute with a different motivation? I'd like to think the answer is considerable. But as long as you think this an arena for amateur interrogation more than inquiry I know my heart will continue to sink when I see your name within a thread I am interested in.

Devil's advocates have their place but a really good one would not be so depressingly consistent in their advocacy of doing nothing.

Nothing would grant you more credibility than a project you are involved in that has brought a little extra measure of enjoyment to a few folks' audio systems. If you have done this I apologize for missing it.
 
I do not answer your questions since they have little to do with what my post was about.

I see.

Nothing would grant you more credibility than a project you are involved in that has brought a little extra measure of enjoyment to a few folks' audio systems. If you have done this I apologize for missing it.

No need to apologize - nobody can read every thread on diyaudio, so things are easy to miss.
 
Plenty of folks make these. WIMA has a good selection of them that you can get at MOUSER and DIGIKEY.

Why do you want to use them? Do you have space limitations where you intend to use them? I thought that was their only advantage. Never thought of them as particularly good for audio - unless this is a surface mount application and they might be one of the better choices for that.

I saw Bunpei mention early in the thread a particular pps cap, Sun Ring, and figured there was something in such a particular recommendation. I have others
 
kumbaya, my lord...
Lord, how can I keep from singing?
Oh, how can I keep from singing?
EVA CASSIDY LYRICS - How Can I Keep From Singing?

http://www.diyaudio.com/forums/digital-source/142562-microsd-memory-card-transport-project-63.html#post3615018
http://www.diyaudio.com/forums/digital-source/142562-microsd-memory-card-transport-project-65.html#post3800980

FINEMET bead cores are available on Amazon as mentioned by Bunpei above:

http://www.amazon.com/FineMet-FT-3AM-B4AR-FINEMET-Beads/dp/B00NJKLHYQ
http://www.amazon.com/FINEMET-FT-3AM-B4AR-F1AH0434-length/dp/B00NE1QQ8W

However, we'll have to ask Bunpei or someone else in Japan for help to acquire those PPS caps by Sun Ring:

CQ09R2E (PPSD)�@250VDC�@0.022ƒÊF 5%

FYI - last time I ordered my FINEMET bead cores through this proxy service and they grouped my Japanese vinyl in the same shipment to save the shipping costs:

FROM JAPAN | Proxy Service For Japanese Auction & Shopping Sites

And I asked my friend to purchase those Sun Ring PPS caps for me while he's visiting Japan.
 
Before going down the magic capacitor road you should consider the A123 LiFePo battery approach as suggested by the folks at TIR NA.

Use these for the three 3.3 volts rails.

I am preparing to do this but have not installed it yet due to my obsession with the OS for ripping. Finished it over the weekend and I think it is worth the trouble.

Each cap will have its own BELLESON reg - there has to be a relay between the cap and the input to the board since the SDTrans requires the rails to turn on simultaneously.

With these you can remove all of those electrolytics since they will get in the way of the batteries.

Think of the batteries as excellent capacitors since they will be fed a voltage, otherwise they would start depleting at uneven rates.

One raw supply will be sufficient for the three batteries w/regulators.

For the FPGA supplies I will continue to use a five volts pack of A123s into the main power input. Doubt there is an appreciably better regulator for use there though I would enjoy being told I am wrong.

At the moment my board is entirely powered by a 5 volts A123 pack. I removed all of the electrolytics between the power input and the regulators inputs and it is better without them in the way as it always is.

Save your money on caps and get some of these batteries. They are a marriage made in heaven for digital electronics. Their current delivery is instantaneous and abundant. Plus, like a shunt regulator (and even better) is their ability to sink junk from the circuit.
 
Save your money on caps and get some of these batteries. They are a marriage made in heaven for digital electronics. Their current delivery is instantaneous and abundant.

Actually, no. Their current capability is much more limited than that of decent electrolytic caps.

Plus, like a shunt regulator (and even better) is their ability to sink junk from the circuit.

Actually, no. They are pretty lousy at dealing with fast peaks and high frequency noise - you need caps for that.
 
You have no idea what you are talking about.

But it hasn't ever stopped you before.

A pack of four of these things can start an automobile.

Tell me of four caps that can start an automobile.

I am no talking about batteries in general with which I would agree.

SPECIFICALLY the A123 in the 26650 case.