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Found 19 results

  1. I just purchased a new Allo Digione and installed the latest Volumio on my Raspberry Pi 4. Under playback options I only can choose None or Software for volume control. How do I get hardware volume control working? I use volume control in my system via Volumio and want the highest possible sound quality. My previous XMOS XU208 USB to SPDIF converter worked fine with Volumio and hardware mixer.
  2. Hi Everyone, I would like to know in detail about the different implementations of data pathways. I currently use windows and I can hear stark difference between music players with different libraries. Most music players with same library sound similar or identical. HQplayer, Winyl and Xmplay sound identical at identical settings while musicbee is similar but slightly sounds lacking in depth. Aimp sounds very different. Foobar sounds very different and lifeless (apparently goes through windows mixers even in asio and has measurable distortion). Albumplayer sounds very different. I can pretty much narrow it down to - if any uninteded processing is happening (like in foobar), or to the way instructions are laid out. The science of getting jitter free data out of CPU is a topic in itself, and I would like to know if there is any kernel/compiler available for linux/bsd that tries to remove the effect of speculative Execution Jitter. From what I know, the current ways are to have tonnes of Lfence instructions or modify the clang so that the instructions are in such a way that spec/ooo execution or other enhancements always returns a predictable sequence (a miss). I have tried a few such programs and while I can hear differences (with the usb dac and supra cable I have), I am not sure if it is all improvements or if there is any skipping going on. I am planning to upgrade my dac. I am thinking of the dddac but haven't setted on one single dac yet. Without a doubt it will be diy and my intention is to use custom coded upsamplers/dithers that I would pre-processes and store before sending the data in 192khz or 176khz, 24 or 32 bit.. I am now confused on the available ways to transmit the information from the processor to the DAC. I will split up the question into two parts. First question I have is, What are the available protocols that communicate data to the dac? I currently use USB, I can see that the data is fetched, packeted, sent to the USB port dma controller. From here it goes to a USB slave which also has a buffer and converts this stream to timed i2s data which will be fed to the dac. Since USB transfer sequence is timed (i think at 125ms between polls) Isosynchronous mode of USB frame skips frames if 44100hz sample rate is used (8000*5 or 6 alternating missing 100 samples). Asynchronous buffers these things so no interpolation in terms of data transfer but doesn't have any error detection or correction and god knows what type of errors/issues could pop in (I hear changes in cables so I don't believe all is well in USB). I went around looking at other protocols - spdif, toslink etc. SPDIF uses manchester encoding and the slave has to decode clock from the data stream. This kind of makes it necessary to have very good engineering in both the master and the slave, and i'm unsure if they will be that much issue free even after that. And the standard looks variable, general certification is only upto 48khz 24 bit though there are implementations that go till 192khz 24 bit. Toslink does the same with optical format (but not the high quality optical standard used in internet transmission and hence apparently varies with cables). I am unsure if any of these support error detection and/or correction. Also all of these seem to have single serial data line. Is there any dual channel data alternative (Ethernet seems to support dual channel, or is it just full duplex they are meaning?). Another interface I saw was aes which is similar to spdif (or is it a subset of spdif?). Ethernet based audio transfer seems to be what is used in the network streamers, with custom protocols on top of the ethernet protocol if I'm right and it seems to be a good way to go about things before sending to the slave. And direct i2s communication over RJ45 or HDMI seems to be available as well but then again i-i communications are a blank slate meant mainly for inter-ic data pathways and I'm unsure how the protocol will hold up to sending over a large line. I would like to get more enlightenment on this topic and subjective experiences of what works best at the moment, the reliable brands of decoders, reclockers, the available chips, diy-options etc. The second question I have is, how is the data taken out from the CPU/memory. For usb, cpu communicates to the USB controller and fills up the data in its buffer before it sends. Another option I've seen common in single board computers is that i2s is available as an i/o from the board itself. As usual, since a general mass production unit may not have good timing (besides they run out of switching power supplies), there are units that take in this i2s stream, buffer, and regenerate them into i2s,spdif or usb signals (like allo kali,digione etc). I have seldom come across chips that communicate to cpu through PCIe and spit out i2s signals (except maybe pinkfaun). Why is it so. What are the other options available for taking data out from cpu with as minimal jitter as possible (provided the software makes sure the cpu is not introducing a lot of jitter). Are there any dedicated computer architectures meant to handle music streaming well enough (ignoring realtime microcontrollers running dos like operating systems). I'm sorry if it sounded too pedantic. I already have a setup I enjoy even out of usb, and I'm only planning to get a better experience. I just want to learn all the options before diving in. And as an EE student, learning these is a lot of fun, and implementing even more so. This is the reason I'm buying diy dac as well and doing my own custom upsampling, just to learn.
  3. Hi After many years with the ATOM based music server (win 7 used as roon renderer) connected via firewire to Weiss DAC202. I am looking for a roon ready streamer to feed the Weiss DAC202. Few considerations... 1. It should sound as good/better than the Ayer7 transport CD also connected via XLR to Weiss 2. Cost up to 2K.. with the higher priced (4.5-5K) alternatives i might go for a new DAC with build in streamer My Setup: ROCK Server > MS > firewire to Weiss DAC202 Ayre 7 > XLR to Weiss DAC202 CJ CT5 and CJ Premier 140 Magico S3 Mk2 Thx
  4. Hello, Is it possible to run Allo Digione autonomously as i2s to SPDIF converter? I'm wondering if I could feed digione with power supply, I2S_BLCK, I2S_LRCK, and I2S_DOUT taken from separate device and convert it to spdif without involvement of raspberry? Have anyone ever tried that? I'm interested in performing modification of minidsp DDRC-24 described here: https://imgur.com/gallery/kblEy and use my Allo digione as i2s>spdif converter instead of buying a new device.
  5. Item is Sold. my mint condition Matrix X-SPDIF 2 DDC for $260 + $12 shipping in the continental US. I have searched high and low for the original white box but can’t locate it. It does come with the included usb cable though. I’m only selling it because my Gustard U16 has a master clock input which I hook my Mutec REF10 to. I will say that it definitely outperformed my modded SU-1 running off a UpTone LPS 1.2, and it sounds great using the LPS 1.2 as a power source.
  6. Hello all! I'm new in the world of RB Pi DAC's and I'm looking now to buy an Allo Boss 1.2 for my RB Pi 3 B+. But my final objective is that the Allo Boss 1.2 will not be only the DAC for the contents passed by the RB Pi, but also that the DAC could receive HD digital signals (24/192 minimum) from external sources (an external PC for example) via SPDIF Toslink and/or coaxial. So, could you recommend me any other board that can provide to the Allo Boss 1.2 the Toslink/coaxial inputs it doesn't have? The ideal would be a card that can be stacked with the Boss using, ideally, the GPIO, without need to solder anything (I'm not a solder expert :-). Also, if the approrpiate board exiss, I'm worried about the drivers to manage the combination, given I'm using Raspbian with JRiver Media Center 25 as content manager. Thanks for your help and support. Best, Manuel.
  7. Just received my plug & play DigiOne Signature player. Connected it to the network port, the SPDIF cable, then the clean side power (iFi power supply) and finally the dirty side (Allo 5v power supply). "DietPi" shows up in the Airplay list and I can select it (stays checked), but no sound is coming out. I am playing Tidal on my iPhone. The ALSA Output Stream Information says: "access: MMAP_INTERLEAVED | format: S16_LE | subformat: STD | channels: 2 | rate: 44100 (44100/1) | period_size: 256 | buffer_size: 131072". When I select my Apple TV using Airplay, I get sound. The configuration options in the Allo GUI look correct -- I didn't change anything -- eg, "allo-digione" is selected as the soundcard. Any help appreciated. settings:
  8. Hello everybody, At the end of the year I would like to buy Studio Monitors. I prefer Genelec or Neumann, but that's not the topic here. Currently I have a pair of Edifier 1280T connected to a Dell U2414H. From there my Macbook Pro (Mid 2012) is connected via Displayport and my Xbox One S via HDMI. My intention is this: I'm looking for an Interface/DAC that allows me to run both my Xbox One S and my MacBook. The Xbox One has an S/PDIF optical output. So far I have found the following products: Audient iD22 Cambridge Audio DACMagic Plus First I want to run a 2.0 system, later adding a subwoofer. Maybe someone here knows another insider tip! In terms of price, it should be around the Audient iD22. I am sorry for my English (living in Germany) Greetings SporeTinte049
  9. I'm running a Mac Mini into a Musical Fidelity M1 DAC (first version). The USB maxes at just 16 bit 48hz. Question: So why does it sound much better in Pure Music when I turn on oversampling? I tried using the SPDIF but the DAC also indicates that it is only receiving the native 44KHz. Question: Does that mean that the software oversampling only works with USB and not with the SPDIF? I have a more modern Audiolab MDAC (on another system) that I will be testing with this system over the weekend. Maybe that will be even better. USB on that is up to 24-bit/96kHz. Both DACs rate 24-bit/192kHz on coax. Question: Do wise members of this community think that I should invest in some kind of USB to Coax anti-jitter thing, or save that money and get a better USB DAC? I'm in general happy with both my DACs but haven't heard new kit in a long while. The remainder of my system is two Musical Fidelity XT-100's bi amplifying a pair of B&W 705s. I think that tweaking my source (mac-mini / DAC etc) should be able to reap big sonic benefits, so that's what I'm poking around on this forum to learn more about. Thanks :-)
  10. They seem to have disappeared from the market and discussion lately, eg V-Link discontinued. Are the newer DAC's so sophisticated that they are unneeded?
  11. In the past 12 months, I had a chance to do some extensive comparisions between various, traditional CD transports and the USB/SPDIF converter. (For those who, for the past three years have been sitting in a cave and do not know what an USB/SPDIF converter is - this ia a device, a bridge that connects between the DAC and a computer, and allows to play music from the hard drive.) All the transports I tried, from my dCS Scarlatti to the McIntosh MCD-1000, could easily aspire to the State-of-the-Art status and are top of the range models from the respective manufacturers. So is the USB/SPDIF converter I used to evaluate the transports - the BADA Alpha USB I've been using, is, to the best of my knowledge, the best USB/SPDIF converter available on the market today. (I base my statement on the extensive tests of some 15+ different USB converters I also conducted in the past 12 months - I can describe the results in a separate thread if anyone is interested). Anyway, the transports I have tried were: $33k dCS Scarlatti Transport: $20k Accuphase DP-800: $9k McIntosh MCD-1000: And here is the $1800 BADA Alpha USB (on top of the Metrum Hex DAC): I have also tried some other transports as well, starting with a $700 Stello CDT100, but those were much cheaper, so are not really revelent to this thread. All the transports, including the BADA Alpha USB, were connected to my dCS Scarlatti DAC using the generic BNC cable. I'm a firm believer in BNC cables, as in my experience, even a cheap, $10 generic BNC cable can outperform fancy RCA and AES cables costing hundreds of dollars. The only exception was the McIntosh MCD-1000, which was used with the Stealth Varidig Sextet AES/EBU digital cable, as it lacks the BNC output. During the tests, I have also tried the matching Accuphase DC-801 and McIntosh MDA-1000 DACs. In the case of dCS and Accuphase DACs, I did not use the available clock link feature (which greatly improves the sonics in all-dCS and all-Accuphase systems) as I was interested in comparing the pure SPDIF performance of all transports, not learning that SPDIF as a standard is flawed, which I have ackowledged a long time ago. The test was as fascinating, as it was ... short. The BADA Alpha USB turned out to be much better than all of those transports mentioned. There was even no need to switch back and forth as we often do to hear the differencies. The difference was so obvious, that you could hear it in the first 10s of a familiar recording (I recommend a recordings with lots of HF energy, like lots of percussive instruments - triangles, hi-hats etc and a lively acustics; pesonally, when comparing different digital cables, digital transports, USB converters or computers, I always use 'La Spagna' by Atrium Musicæ de Madrid and Gregorio Paniagua published by BIS records - a fabulous recording of XV century music; there is also one by Harmonia Mundi, but I like the BIS one better). The BADA Alpha USB made the sound smoother, with ZERO artificial edge, grain or digital glare. There was also much better layering of instruments, and air around the outlines. The instruments sounded not only better separated in space, but also much more 3-dimensional. The resolution also improved quite a bit. You could hear the sounds that you were not aware are on the recording, the HF decays had much longer trails and hung in space much longer. The most fascinating thing was that sound had better resolution, but at the same time, was so much smoother and fluid. Usually, it is another way round. Very often we try a new component or a cable and at first are fascinated by improved resolution, only to find out a few days later (after we had X-rayed all our recordings), that the increased resolution brings listener fatigue and makes the listening far less enjoyable. Not this time. BADA pulls this incredible trick of sounding both more resolute, more transparent, and much smoother at the same time. The traditional transports sounded grainy and congested at the same time. The whole rendition of space just shrunk, as if someone sucked out all air. Once I have heard the BADA, there was no going back. One may ask - how it is possible that a $1800 device can outperform a $33k transport ? For starters, the USB converter much cheaper to manufacture, as it doesn't have an expensive (in case of Scarlatti - EXTREMELY expensive @ $5000) CD drive, fancy box, big PSU with separate legs for the drive, display, servo, control logic and SPDIF out, etc. Since it is so small and has no controls, it can get away whit what looks like a $100 box that can be hidden away. On performance side, I think it all goes down to the quality of the onboard clocks used (and their respective power supplies). The clock stability has a direct influence on the quality of the SPDIF signal, as the whole SPDIF signal is generated using clock as a reference. So more stable clock = more stable (less jittery) SPDIF signal. All the transports I mentioned use clocks that were available 7-8 years ago, when those transports were designed. They were probably one of the best avalable at the time, but are rather avg by today's standards - there was a great advancement in clock art (with respect to their phase noise) in the past 3 years. The latest Ultra Low Phase Noise clocks that are used in BADA Alpha USB (made by Crystek), have the levels of phase noise that rival the ultra expensive Rubidium Clocks. Sure they do not have the long time accuracy of the Rubidium Clocks (the PPM figure), but that doesn't really matter, as what is important in digital audio is the short term clock stability (the level of Phase Noise). Were does this leaves us ? Well, the dCS owners do not really have to worry, as enabling the clock link feature between the transport and a DAC (during the course of this test I kept the clock link feature disconented to level the playing field) will improve its performance. The Scarlatti clock may not be enough to get past the performance offered by the BADA (the U-Clock shurely wasn't), but the Antelope 10M Rubidium Clock is. Scarlatti transport driven by Antelope 10M clock (and needed Antelope OCX clock divider) still gave me the best sound I have ever heard from my Scarlatti system. Not to mention the fact, that it does SACD as well. But for the rest of you, who DO mind spending $50k for the transport, clocks and cables, this is a great news. Nowaydays for ~$5000 (BADA Alpha USB + CAPS v3 Lagoon computer + NAS) you can have a State-of-the-Art digital transport, that will rival most super expensive CD spinners.
  12. Ok folks, my XP music server died after 10 years of service and I need to replace it with a newer Win 7 server. I have a Lynx AES16 (the PCI version not PCI-express). This really limits the motherboards that I can use since most newer ones only support PCI-e. So here's the question. If I'm only using it for playback (not recording) do I really need the AES16 at all to feed my Bryston BDA-1 with a perfect bitstream? Wouldn't any sound card with an SPDIF/Optical output sound the same? The rest of the audio system is fairly high res audiophile (Thiel speakers, Sim-Audio pre, Sunfire amp, MIT cables) so I'll be able to notice fairly subtle differences. I've read many people talking about the sound quality difference between various digital feeds but if my BDA-1 locks in on the signal seems to me I'm in good shape. No? If the answer is, hell yes the AES16's gonna blow the doors off another SPDIF card, how on earth do I get it into a PCI-e slot without a world of hurt? My days of hours of tinkering are behind me. Many thanks dbdog
  13. Newbie Dave here. I just finished building my own rig. ASRock FM2A88m Extreme 4+ MB, 16 GB Ram, 128 SSD, W10. Works fine! No audiocard. There is an external SPDIF port on back! I want to buy a pair of Behringer MS20 speakers. (I currently have no speakers at all and use earplugs). The Behringer MS20 speakers have their own 24/192 DAC built in and they have a SPDIF input on back. If I use an SPDIF cable from output on computer to input on speakers will this bypass my computer DAC entirely! I've heard that computer DACs are very cheap 16/44 specs I think! I hope I explained this OK. DACs confuse the heck out of me! Tks for any help - David
  14. Hi everyone, I'm new both in this forum and in the audiophile world. I've a problem whit the optical output on my iMac. I bought a Dac (a Beresford Bushmaster Dac) and I connected it via toslink to my iMac with Mountain Lion Osx, now the problem: when i try to play files until 48kHz it's all ok, but when i try to play some file at 88kHz or 96 or higher the sound is distorted... or better it's not sound coming out but it seems like scratches ("scrrrr"). If i plug the toslink cable to my macbook pro with Lion all works correctly... Can someone help me i don't want to change the Dac (or the Osx...). Thanks all in advance and sorry for my bad bad english. Riccardo.
  15. I am just in the process of purchasing my new 2 channel stereo. The room dimensions will be 12ft wide x 24 ft with an angled vaulted ceiling. I listen to rock and roll, pop, folk and some classical. When alone I do enjoy some loud music time for sure. I have all my CD's ripped in WAVE or Apple Lossless. I will get into some high rez stuff in the future. I wil be using a PC laptop or Mac Mini. I like JRiver but I may go with ITunes and Pure Music? I will be using Golden Ear Triton 2's or 3's (haven't decided yet) My amp/pream/dac options are as follows: 1. Rotel 1552mk11 (120 x 2 Class A/B) with Rotel RDD-1580 Dac and Rotel RC-1550 (Preamp)-This will cost around (2200-2400) I have a local store, I can demo product, I've had Rotel in the past 2. NAD C-390DD (tota different than Rotel, all digital, all in one solution (DAC, amp,PRE) (150 x 2) I can get a great discount. Normally 2600 and I can get it for 2150. I hear about USB to USB not being that great with the NAD and that the SPDIF s much better. Not sure. I don't want to feel compelled to spend hundreds more on a USB to SPDIF converter but if that will really make a difference. Any thoughts, insights would be greatly appreciated. I recognize these two stereo setups are quite different but similar price. Thanks in advance, Mark
  16. First of all, I found this site a few weeks ago and have learned a ton. Thank you all! So, I'm upgrading from my 8 year old laptop running XP, a USB hard drive, and outputting via USB to a Musical Fidelity V-Dac (old model). I'd like to build a C.A.P.S 2.0 server minus the SOtM USB card (to be added in the future). This leaves me with two output choices. The first is USB to the DAC but the USB interface on the DAC is limited to 16/44.1k. The second is to make a cable to plug into the SPDIF header on the motherboard and have the ability to output 24/96k to the DAC, similar to what Chris did with his C.A.P.S. 1.0. My questions are: 1 - Has anyone made this cable and have advice on how to do it? 2 - Has anyone used the SPDIF header output and could comment on the sound quality? Thanks for the help.
  17. So, my brother gave me an older Astell & Kern AK100 Digital Audio Player, and I wanted to see if I could use it as a DAC to output audio from my PC into my stereo. Here's how I set it up: USB from PC into AK100 > Use As USB DAC selected from the device. Optical Out from the AK100 into the Optical SPDIF input on my A/V Receiver. I configured the stereo receiver to use Optical 2 (my TV is plugged into Optical 1 on the receiver). Windows 10 found the iRiver USB DAC with no problem, and I configured JRiver Media Center to output through the AK100 DAC rather than my Xonar Essence STX sound card. On my receiver, when configuring the Optical Audio output, there's the option for using Optical (PCM) or Optical (DDS) or just Optical. I've tried every conceivable configuration, but can't get any audio to output from the stereo. Am I missing something? Is this not how the AK100 can be used as a DAC? I've confirmed the Optical output from the device (which is also the headphone output). Nothing seems to work. Any ideas?
  18. Hello everyone, I just joined the forum and appreciate all the information on this website. I am researching a problem that I was hoping you could help with. I have a laptop driving a 4k display using displayport 1.2 ([email protected]). I'd like to get the audio stream (intel display audio) into my receiver but cannot find any displayport audio extractors. I could use HDMI but then my display could only run at 30Hz (looks horrible). I've looked into USB-to-SPDIF devices, but I don't believe those won't provide 5.1 sound from Netflix/PowerDVD/MPC. Anyone have thoughts how I can get bit-perfect stereo audio into my receiver when playing music as well as 5.1 Dolby/DTS encoded sound when watching movies? Thanks, Nathan
  19. Hey guys, So I've got a bunch of questions, all relating to one point, and that is to improve my audio experience. There will be a lot of cringe-worthy things, so beware! First up, I'll explain my current setup. I have the majority of my audio (games/movies/music) being directed out the back of my PC via a 3.5mm jack from the onboard motherboard. I also have some programs (Teamspeak/Ventrilo) directing their audio to the front 3.5mm audio jacks. The reason for this is so when I record my gameplay, I can record the gameplays audio and avoid the audio from other programs being recorded. Now, to hear both, I use a splitter/merger for the 3.5mm jacks to a female-female adaptor and then again to another splitter/merger to split the audio to my headphones and to my speakers. This can all be seen in its ugly glory right here. *ouch* So, right off the bat, you guys should know that this produces a lot of excess noise from sitting amongst the cables at the back of my PC and has reduced audio quality due to the amount of cabling. Now, I've been doing a little research as to how I can significantly improve this. What I'm looking at is getting a DAC with duel digital input with duel analogue output - this should (?) provide the exact same results while providing a far better experience. My motherboard is a Rampage III gene, which has two SPDIF outputs. So, with all that covered, question time! 1. Will a duel input/output DAC merge the audio or will it remain separate? 2. How common is SPDIF used in quality motherboards (such as when I upgrade, how hard will it be to find this kind of setup again on a motherboard, or would it be better to just get a soundcard?)? 3. Suggestions as to what a good DAC would be that has the duel input/output (~$200 would be of decent quality?) if it even exists?. 4. I've seen USB is also an option, but unless it's superior, I'd like to keep the USB slot usage to a minimum if possible. 5. Is there much variation between cable quality? Anywho, thanks for reading all this, hopefully you can help me with my quest! Capt. Mytre
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