The Computer Audiophile Posted May 20, 2020 Share Posted May 20, 2020 Hi Guys, just a friendly reminder that if you are in the industry, sell audio components, or have a financial interest in anything you're talking about, your company should be mentioned in your signature. jabbr 1 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted December 23, 2020 Share Posted December 23, 2020 48 minutes ago, OAudio said: DC ATX supplies can put in good performances but PC's are current driven devices and at the current levels required DC ATX and other switched / buck supplies will only take you so far. Linear is perhaps the best route but it's a significant task developing them for ATX supplies as an application. CLC is attractive but can occupy a lot of space and needs to be carefully designed but can be done. We have gone for multiple linears with a list of special features in the supplies. Performance even at high(ish) currents is good and it shows in SQ achived. If you can find specs or if you build try to target the measured performance recommended here (see link below). Measured PSU performance is not everything but this is one of the rare areas in hifi where good figures do come through into SQ. (As an aside the current figures for our supply have been re-rated. From 10amp to 15 amp contunuous and 22 amps sustained peak per module / rail. These levels are not really needed but its nice to know that the headroom is there.) https://audiophilestyle.com/forums/topic/58164-building-a-diy-music-server/?do=findComment&comment=1086986 Hi @OAudio, I just want to make sure you are still just a DIY'er and don't have a commercial offering yet? Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted January 8, 2021 Share Posted January 8, 2021 Having built many PCs over the years, I'm a huge fan of a larger chassis with ample room inside to do what's needed. Nenon 1 Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted April 14, 2021 Popular Post Share Posted April 14, 2021 Please be careful and respectful guys. matthias, Exocer, Marcin_gps and 1 other 2 2 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted April 18, 2021 Share Posted April 18, 2021 4 hours ago, seeteeyou said: didn't look like a fanless motherboard, though What do you mean fanless motherboard? Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted May 1, 2021 Popular Post Share Posted May 1, 2021 19 minutes ago, Gurkel said: Dumb question: do you have some skills in maths/phyiscs and maybe a bit about computer hardware? Because what you are telling me is impossible to achieve the way to plan to do it,. The idea with the multi processors and "optimzed OS" is completely wrong, which is something anyone knows who is overclocking his computer, but let me explain it. Modern CPUs contain multiple cores for the fastest possible way of doing calculations, plus run at very high frequencies. The higher the frequency they run, the faster they calculate. Problem is: they consume a lot of power which must be removed by a dedicated cooler, and the higher the frequency a cpu runs, the more heat must be removed. So heat is a limiting factor of the performance of a CPU, and Intel and AMD do anything to optimize the way how heat is generated. On trick every CPU with more than one core does, is the following. It analysises which core is busy with doing calculations (and generates heat) and moves the process to different core after some milliseconds. By doing this, the CPU can spread the generated heat over a bigger area. So not a single spot gets really hot but the whole CPU warms up. And this gives the cooler the chance to move more heat away, resulting in a better performance of the CPU due to higher possible frequenciey it can run. This function is hard coded into the CPU and cannot be modified by any software, leave alone an "optimized OS". It also cannot be modified by changing the clock speed, so no matter if you run your computer at 1GHz or 4GHz, it will do the same process swap all the time. Last but not least I am sure that the tidal or Noon server running on a windows machine is not multithreaded but a single thread. If you run such server software on a machine with 40 threads, you have 39 idle threads and the one doing something is bored by the amount of information it has to push around. The "low latency" for audio streams is not required. The digital signal going out on an USB port to the DAC is in the range of 350kb/s, which is an amount of data far far far away from a range where you need some more "horse power" to do the job. My rock64 (a simple SBC) can handle 80MB/sec without issues. And low latency also is not required because the data exchange is asynchronus, which means: the data doesn't have to arrive "just in time" and if the computer is busy doing something else at the moment, everything breaks. A short delay is captured by the buffer on the receiving side. I stumbled across the description of one of these prebuild HQ servers (Takio? Taiko?), had a look at the product details and was a bit amused to see that someone really gets away with this and actually sells these computers. So, why spend thousands of dollars if it's not required? I can tell you the CPU in my PC acts very different from what you suggest. I run upsampling to 1,536 kHz or DSD256 and convolution. That isn’t going to happen at this level on a Rock64. NanoSword and StreamFidelity 2 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted May 1, 2021 Share Posted May 1, 2021 13 minutes ago, Gurkel said: Can you send a screenshot of the process explorer (windows) or top (Linux)? Wanna see how much CPU power this encoding requires. All cores please, don't think resampling is multithreaded. This still doesn't make the claim with the "modified OS" more true as it doesn't change the hard coded routines in the CPU, and these routines already do what you try to achieve on OS level - just in a much more efficient way. This OS thing sounds to me like a red hering to me or: you try to solve a problem which doesn't exist. But now I'll look around a bit more to see what others use. There isn’t a CPU currently made that can process DSD512 with EC modulators for playback without dropouts. HQPlayer is the app. It can be coded to be multi threaded. You’re suggestion that resampling isn’t multi threaded is a bit off. It’s up to the developer of the app. HQP also offloads to the GPU Cuda cores. Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted May 1, 2021 Share Posted May 1, 2021 9 minutes ago, Gurkel said: Well, it's more like you are driving around at 30 km/h and tell others you need 500 horsepower and bi turbo so you can accelerate to 32 km/h when you use a 20 core computer to run Tidal which (according to the webpage of tidal) requires 512MB RAM, win7 and a CPU sold 10 years ago. You should know better than to use a company’s stated minimum requirements as anything other than a bare minimum that may not work well. But, in this case you’re talking about the Tidal app which nobody uses. Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted May 1, 2021 Share Posted May 1, 2021 1 minute ago, Gurkel said: Yes, and I also plan to build one, but before wasting money on stuff I don't need on the one side vs buying cheap parts I have to replace immediately I do some research - in boards like this one here. And after stumbling across these high power machines and the claims with the pure sound I started digging around. Because I like computers and my job is to write programs/generate workflows for the data exchange between machines, I had a closer look at the data sent to the USB port by a network streamer and did some calculations. So far I am sure there is no difference in the digital data of such a port. That's why I asked around if there is someone here with the required background knowledge to explain what's going on. Sending PCM at 1,536 kHz to one of my Windows machines for USB output causes stuttering. Switching to a custom Linux build using NAA and the stuttering is gone. Same hardware, custom OS. Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted May 1, 2021 Share Posted May 1, 2021 16 minutes ago, Gurkel said: Well, DSD512 is not relevant here, but I found someone here in the board who does upsampling to DSD256, and he is doing this on "They built me a custom fanless, 4 processor i5 computer that runs HQP with output at DSD256. Andrew is the owner and very helpful. Just tell him what are looking to do and your budget and he can advise you.", and another one with "so I finally landed to a passively cooled I5-8400 that is capable to do DSD256/ASDM7" Well, above a rock64 but far away from a 20 core machine. And if you can use Cuda, then just buy a GTX1080 and you are settled. Please take a step back. One person doesn’t speak for everyone. The post you quote talks about a server from Andrew at SGC. Many people would do DSD512 if they could. DSD256 is done by many people but there are variables that require more power such as convolution, different modulators, and more channels. I highly recommend learning the landscape of uses here before making yourself look less than learned. I’m sure you have some good information but so far it has been inaccurate. shahed99 1 Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted May 1, 2021 Popular Post Share Posted May 1, 2021 9 minutes ago, Gurkel said: the signal a cheap DIY server pushes to the USB port is identical to what an expensive computer does, why should I buy the expensive one. You personally should not purchase such a computer. All good? Exocer, BTO, shahed99 and 2 others 2 1 2 Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted May 1, 2021 Popular Post Share Posted May 1, 2021 10 minutes ago, Gurkel said: Anyone here who understands PCM/DSD encoding? I think you’ll find that @Miska understands it as well as anyone on Earth. Serious. Mops911 and MarcelNL 1 1 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted May 1, 2021 Share Posted May 1, 2021 9 minutes ago, Gurkel said: Leva that aside. If you send data over the internet, each data package has it's own CRC code attached, and if the packet fails the check it is transitted again (if you use TCP). No switch alters data, there is no data clenaisng of whatsoever analog side effects here. Pretty obvious but people buy it. USB has zero error correction. Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted May 2, 2021 Popular Post Share Posted May 2, 2021 23 hours ago, Nenon said: can you please give me access to delete messages here? You now can hide posts from view. lwr, Nenon and NanoSword 2 1 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted August 20, 2021 Share Posted August 20, 2021 @Soul Analogue are you selling products commercially? Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted August 20, 2021 Share Posted August 20, 2021 Just now, Soul Analogue said: Hi I am not intended to I just help someone interested to get what they need Ok thanks. Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted August 20, 2021 Share Posted August 20, 2021 15 hours ago, Soul Analogue said: Hi I am not intended to I just help someone interested to get what they need So this is the product of just helping people get what they need, not a commercial product for sale? Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted August 28, 2021 Share Posted August 28, 2021 @Marcin_gps Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted September 15, 2021 Share Posted September 15, 2021 On 8/20/2021 at 12:17 PM, Soul Analogue said: Not a commercial product Nanosword got the necessary parts from me as a kit and assembled with my guidance no completed product forsale thanks Hello Soul Analogue, it was brought to my attention that nine days before telling me you are merely a hobbyist, you solicited a product review from another website by saying you are a builder of custom linear power supplies (see your post below). As of right now, you must follow all the rules that others with a commercial interest follow on Audiophile Style. Your signature line below every post must indicate your affiliation in the industry and you shouldn't talk about your products unless someone asks you a questions about them. If you'd like to communicate without restrictions, you're welcome to open a sponsored forum here like other manufacturers who support Audiophile Style. Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted September 16, 2021 Popular Post Share Posted September 16, 2021 5 hours ago, derBen said: Hi, I just finished my second DIY Audiio Server and I would like to share some impressions. I'm running a Aaeon Mini-ITX board with 16GB Apacer Ram, a 250GB Samsung 980Pro M.2 SSD and a Intel i7 9700T CPU. For the connections I use JCAT FEMTO cards: USB and NET. The operating system is Euphony OS running ROON. The server is built into two cases: - One external PSU regulating 16V + 16V + 9V + 7V from a custom 400 VA toroid - The main case containing the local PSU (regulating 12V + 12V + 5V + 3,3V) and the computer components Both cases have the same shape and dimensions, only the button in the front is missing in the PSU case. What dio you think? Ben What case are you using? genvirt and PavelDosko 2 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted September 16, 2021 Share Posted September 16, 2021 2 minutes ago, derBen said: Hi, I created the cases in my CAD software and ordered the material from a laser cutting company. Then I got the parts eloxated in black. So it's kind of DIY cases... Best Ben Amazing. ASRMichael 1 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted September 17, 2021 Share Posted September 17, 2021 Perhaps derBen can even sell his plans so others can have them created elsewhere. I only say this because derBen doesn’t seem to want to get into this business. Exocer 1 Founder of Audiophile Style | My Audio Systems Link to comment
The Computer Audiophile Posted November 5, 2021 Share Posted November 5, 2021 30 minutes ago, Soul Analogue said: i would not go for any switching psu🙄 and being “double regulated” i think that psu would not give what you need… quick transient and dynamics… lets see 😅 This is your warning. You are a manufacturer of this stuff and you can’t comment like you’ve done here. Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted November 21, 2021 Popular Post Share Posted November 21, 2021 Interesting motherboard with soldered in CPU i7-11800H https://item.m.jd.com/product/10040795778181.html Exocer and gererick 2 Founder of Audiophile Style | My Audio Systems Link to comment
Popular Post The Computer Audiophile Posted May 24, 2022 Popular Post Share Posted May 24, 2022 Here is what my friend uses to deliver heavy speakers. It’s really cool. https://youtu.be/iKk5t3EEksA Gavin1977 and flkin 2 Founder of Audiophile Style | My Audio Systems Link to comment
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