Popular Post PeterSt Posted December 14, 2017 Popular Post Share Posted December 14, 2017 32 minutes ago, Rt66indierock said: I can't say it enough times hi-res is a very tough sell. Hires ? what Hires. Hotel California 192. Hotel California MQA. There is no Hotel California Hires. Not for real, not on DVDA and not via MQA. Also not for @GUTB. So that is why we shouldn't be interested in Hires. Of course it is only an example. But no 40th Anniversary Edition is going to change this. No MQA either, as we can see. esldude and Rt66indierock 2 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted December 15, 2017 Share Posted December 15, 2017 8 hours ago, Rt66indierock said: I've walked into glass doors I did just that in a restaurant in Big Sur. Now you know. Hard to behave expensive in such a situation. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
Popular Post PeterSt Posted December 17, 2017 Popular Post Share Posted December 17, 2017 4 hours ago, kumakuma said: Probably for the same reasons why model trains as a hobby is dying out. I live in my second house with a basement especially made for model railroading. First house was built like that for myself, this one for our son, now 19 yo. First time failed because I never got round to it for 19 years in a row, second time I was going to do it better. I bought everything (or most) for it, like over 300 locomotives, countless wagons and ~ 5 miles of track. It is never going to happen, but now why ... Once or twice a year our son openly regrets that I never set up something for him. He is doing that with consciousness for 10 years or so, by now (we live in this house for 14 years). Once or twice a month I explicitly do not regret that I never started it for real, because the huge amounts of time in it would have been a waste because of two reasons : 1. At this large scale (total length of 150ft) all would have to be controlled by computers and thus also the tracks and all would have to be "emulated" to make this control possible; this emulation is a game in itself and I'd like the game better. 2. Every youngster (boy) likes games better than whatever physical means. No wait, they require gaming for a living. Both are very similar. So I myself already would have difficulties in not liking Simcity etc. (or Railroad Tycoon) for the better, at infinitely less effort, but the boy would never look at the physical railroad after two weeks. And so I regard it is super waste of effort. Btw, it was my hobby from of when I was conscious of being alive at 4 or so, because it was my father's hobby. At 11, once per year (for a month) I laid out a track in and around the living room and it was fully (electrically) automated with 5 locomotives. That is also where my soldering started. So I very well know what I am talking about and explicitly decided not to continue with it. Once in a while I look into selling all the stuff, but I don't think I will ever be able to find anyone interested. The hobby is quite dead and I helped with that. MikeyFresh, semente, Les Habitants and 2 others 3 1 1 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted December 20, 2017 Share Posted December 20, 2017 10 hours ago, Ralf11 said: all personal attacks should be done by using song lyrics But with MQA encoding. Makes them steeper. More direct. And more personal of course. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted December 21, 2017 Share Posted December 21, 2017 43 minutes ago, mansr said: There is no trade-off. There is. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted December 24, 2017 Share Posted December 24, 2017 21 minutes ago, Fokus said: he recorded the MQA and PCM outputs of a DAC in to an ADC, and afterwards put one channel of each file side by side. That should be obvious. Apart from it being very easy to make mistakes and thinking errors and what not, you see one here yourself - your quote. So how would a resampling system which tries to catch dirac pulses of 1 sample width (where they ?) NOT land randomly by this means ? From the article : while MQA's approach may improve the shape of the impulse response, its sampling method—and the resulting, presumed increase in aliasing—introduce randomness in precisely when those impulses occur. Jim must be talking about a means of digital resampling, applied by MQA. During the process of decimation or whatever. What I'd like to head for is a virtual conclusion of Jim that this was nothing much MQA'd (hence no random sample landing). Also, there *is* not such a thing as possible improvement of a dirac pulse; only worse is possible (and otherwise I am curious about an idea about how the dirac pulse can be improved upon (band limit it is not allowed for a solution, I'd say)). So the general consensus : something ain't right here. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted December 24, 2017 Share Posted December 24, 2017 FWIW : @John_Atkinson, what Jim should do is provide MQA with a dirac pulse train with varying distance. If MQA is right with their promises, it should show what I could show you (not sure whether this is a good idea to do this in advance of matters). It will also show what a normal DAC with decent filtering will make of it : a mess (as in : no dirac pulse anywhere and one pile of distortion). Best is to have a train of e.g. 20 pulses in a row, then a space of 50 or so "nothing" then 20 pulses again, 5 spaces with nothing - and so on for a nice 30 seconds. The "5 spaces" can be longer but must cover for the filter length to bridge the gap (and show the mess). If this works out, all it will show is what I expect : anyone can do this as long as the filter has been made for it. But also : how such a filter overrules the in-DAC filter. And regarding "starting in the middle" ... still only starting from there (the digitally generated file). The main part happens in the music file and the MQA encoding (means). Regards, Peter Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 1 hour ago, Don Hills said: interpolation is performed with a filter I don't think so. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 1 minute ago, Galileo365 said: That comment was originally made in reference to MQA, which claims to use B-spline interpolation but indirect evidence suggests is not true I don't follow the (ultra negative) MQA hoopla any more. Fact is that 95% of what we know about MQA comes from minds on this forum. 50% of that could be wrong because it is (has to be) often derived from half-truths like not telling the complete story. Example : If someone name Bob Stuart somewhere tells that there's B-spline interpolation "involved" he can be correct. Btw on this matter I'd like to see him say that himself. Meanwhile, any other means of filtering behind that B-spline interpolation can be just as well in order. Now he spoke the truth, right ? Yes, he did and it all depends on how the question was asked and how he may beat around a bush to come up with the response. Say that I know me ... Again depending on the question, if he tells that interpolation is in order, I believe it. But I also believe that further filtering is behind that, which btw can only happen in a DAC for the purpose. This means : That the B-spline interpolation (again, if there at all) happens at the e.g. Tidal servers. And, it would be the most logical thing to do, looking at MQA's objectives. On a side note, where happens what in MQA is my thang. How it really happens is for others like Mansr. Together we form the picture. Regards and welcome, Peter (developer of some of these filters and producer of MQA decoding software (shht) BUT being complete neutral to it). Summit 1 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 13 minutes ago, Galileo365 said: Yes, precisely. Interpolation is never performed with a filter. As how things tend to go in here, "of course everything is performed via a filter" because ... that's the language of speak even for those who think they read a lot. So easy enough, if you never made an interpolating filter (hey !) you don't know that it is not a filter at all because ... the real filter is (software wise) set up very differently. Challenge : Can someone make an interpolating roll off filter with coils and caps and resistors etc., for a speaker ? (let's have it, but I don't think this is possible) Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 4 minutes ago, Audiophile Neuroscience said: Yep, subjective interpretation of test results has been a recurrent bone of contention around here That's because the interpretation is merely interpolated. Audiophile Neuroscience 1 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 1 minute ago, Galileo365 said: it would undermine my credibility even more than it already is. All you need to do is investigate a bit who you address and never think you have "the" answer (not without context anyway). Of course this is rather impossible mostly, but most people have a history and you can't just know better. Oh, you can towards the person himself, but the others will be against you. Anyway about the interpretation : A good example is the age of someone named Mansr. 19xx it was said. Beautiful interpretation makes that is is 19 or so. Interpolation should make that between 19 and ~364 days more. But for me he could be 118 because he is from the 1900's. You still have all of your 100 credit points all right. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 1 minute ago, Audiophile Neuroscience said: FYI Peter is this guy http://www.phasure.com/ Being Dutch he will metaphorically knock you down with a bicycle before you see him even coming Thank you for that introduction. You will recognize me by my tandem bike, double dutch being my partner. 24 minutes ago, PeterSt said: Yes, he did and it all depends on how the question was asked and how he may beat around a bush to come up with the response. Say that I know me .. I said it ... Audiophile Neuroscience 1 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 But seriously, does someone have a link to that Youtube or text where Bob Stuart tells about the B-spline interpolation ? At least I like to have some fun in laying out how it could be interpreted. Thanks ! Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 52 minutes ago, Galileo365 said: You must know Peter Qvortrup .. From my Audio Note, yes. But I don't adhere his "no filtering" ideas. So my (designed) DAC would be pure NOS/Filterless (and R2R) and the first thing to do was ... creating a filter in software for it. Ha ! readily make the mistake again, because it interpolates only (today this is a bit different but with the emphasis on "no ringing"). So you see ? I am all MQA ready. But let's change the subject because MQA is from the past. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 24, 2018 Share Posted June 24, 2018 6 minutes ago, FredericV said: 2 hours ago, PeterSt said: Again depending on the question, if he tells that interpolation is in order, I believe it. But I also believe that further filtering is behind that, which btw can only happen in a DAC for the purpose. This means : That the B-spline interpolation (again, if there at all) happens at the e.g. Tidal servers. And, it would be the most logical thing to do, looking at MQA's objectives. This is not the case. The Tidal servers are based on a CDN with a simplistic token system I meant : in advance of further filtering (like the MQA DAC's renderer does it). I surely didn't mean to say that on any Tidal server some processing is being done in real time or so (when you ask for the file). Sorry to be vague about this. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 26, 2018 Share Posted June 26, 2018 16 hours ago, The Computer Audiophile said: For the most part people here love facts and data when it comes to MQA. So far 99% of this information seems to make MQA look bad. If you have any info on either side of the issue, it's very welcome here. Yes, and might you put some emphasis on the pro-MQA side, then you will be called an MQA shill. And for the rest of your life you will be one. That's how it works in here. Just observing. 18 hours ago, Galileo365 said: This is supposed to be Computer Audiophile, not We Hate MQA, or so I thought. Ehmm Bill Brown 1 Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
PeterSt Posted June 26, 2018 Share Posted June 26, 2018 Hahahaha, I posted two posts - of reading further - too early. So : 17 minutes ago, PeterSt said: Yes, and might you put some emphasis on the pro-MQA side, then you will be called an MQA shill. True ! Quote And for the rest of your life you will be one. Also true. 17 minutes ago, PeterSt said: 18 hours ago, Galileo365 said: We Hate MQA Also true. But not relevant. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
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