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About luisma

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  1. Nice comparison thank you I don't think you mentioned if you are doing any optimizations, which kernel on audiolinux you using 4.19? are you using realtime rtapp and rtirq processes? thanks again
  2. Hey Bob, nice avatar you got there, I received that error in the past when installing processor kernel updates with Intel so I guess this is not only related to AMD, my solution was to imaged a new flash drive, I discarded my AMD system, sold CPU on ebay and getting and Intel cpu and board now, AMD although very good it just gives errors, there's not even governors on AMD and performance with HQP (which I'm a big fan) it is just not there. Take care Luis
  3. luisma

    HQ Player

    If you are referring to the headroom DSP in Roon to avoid clipping I believe it is the same as setting HQP max volume at -3, I personally don't use the feature in Roon.
  4. luisma

    HQ Player

    This could be a simple question for someone to answer, HQP volume should be limited at -3 to avoid possible clipping, what about if you would like to get some more volume because your preamp is not enough? can this be done avoiding clipping and possibly noise? convolution maybe? let's say I would like to increase max volume (without clipping +8db)?
  5. Hi @Miska, I think I have asked you before, when playing back native HQPro content let's say sinc-M - DSD512 - 7EC using Roon, of course no HQPe or NAA is needed, the CPU resources taken by Roon playing the content should not be much correct? My point is with a less powerful PC you could do the playing without needing much resources etc. Is that accurate?
  6. they don't, you need to supply these with proper "clean power", the one you provided in the link is 5V which can be powered with pretty much anything, LPS, battery+ldovr reg, you name it. I'm sorry I just noticed you were referring to the Allo PS not the Allo Bridge, you are correct an LPS will deal with that. I haven't tried the Allo Shanti, but if I would like to experiment I would get an ldovr double regulated 7V - 6V - 5V for this Amazon PC you sent before the LDOVR must be under 6 Watts, assumming the mini PC does 3A at 5V At 7V in and 5V out you will dissipate P=(7-5)*3A=6W so you are pretty much at the limit, you could feed the double regulated PS with either a power cube or Powermax batteries like others are doing, if it does more than 3A then you can't use the double regulator and instead you will need to get a JS2 from Uptone (expensive but great), John Kennys supercaps are good and I think he is doing 3A or so, HDplex certainly,
  7. luisma

    HQ Player

    Both are non-apodizing and "some recordings" like Miska mentioned above will show its deficiencies. Of course is up to him to provide more details on these.
  8. luisma

    HQ Player

    If it is something "easy" to implement I believe most users will welcome that, either some sort of indicator (which I don't know how will that work with Roon+HQP) or maybe a "third filter option" allowing only to select apodizing filters to be used in case of? I mean after your comments it is just safe (for me at least) to keep using ext2 as I am doing currently, but choices are always good I think
  9. Yeah I'm not touching the priority, or doing isolation neither
  10. Because I was under the impression that managing threads increased the overhead on certain apps, if that's not the case I will leave it running there. Thank you, if you recommend to leave HT running will do it.
  11. @ericuco oh yeah I totally get it, thank you, but what I'm trying to figure out is if isolating processes to cores will create any issues for the NAA service specifically in the way it handles inter core load distribution, because even if I isolate the process to 1 core if Miska detects 4 and tries to do load distribution and can't that will create unnecessary overhead which is exactly what I'm trying to avoid
  12. Just a piece of advise, the shielding, JSSG, JSSG360 etc. it is working for "digital signals" many are using it for "DC" and "AC" current and are reporting good results. On "analog" cables, beware with the increased capacitance when adding shielding, not the case of the Lush and this is certainly kind of OT, not all shielding are created equal and not connecting the shield at any end and just looping it ad infinitum (JSSG style) increases the capacitance dramatically killing the sonics (at least for me) especially on balanced interconnects which are designed specifically to avoid coloration and kill noise
  13. Totally agree I may add it is the one because of the yellow color that bothers my wife the most, our living is greyish, silvery, colors and the yellow twisting and turning on the center just drives her mad, I don't care if the sound is not good, mission accomplished ....
  14. @Miska Hi Jussi, an NAA only service endpoint running on intel Celeron with 4 cores and 4 threads on archlinux, it won't use more than 15% of the CPU under DSD512 I know you advise on HQPe not to do core isolation etc. as you do your own core balancing on your app that is crystal clear For the NAA, it seems it does prefers one core, I'm using only one core, no HT and no Turbo for the networkaudiod service, it works just fine, would you advise against using this specific design? I just imagine subjectively that encasing the networkaudiod service to only one core will remove the inter core processes and threading, "focusing" the daemon more on just one core and not allowing "distracting" thread process to be running. Note I say I imagine, I have really no clue how it works on your app that's why I'm asking thank you Luis
  15. I have been thinking on creating a video repository for my experiments, (youtube is actually that) I have a NUC located 2 feet away from my preamp. If I turn the system without playing music is dead quiet. When I turn on the NUC (note the NUC doesn't have a mechanical HDD just memory and USB connected to it I start hearing artifacts, pops and crackles on my right speaker, we are not talking about an ATX board like yours but just a tiny little NUC. On all 660 pages on this thread is well established EMI / RFI will make a "subjectively experienced" difference in SQ That's why the processing PC should be far away from your audio system and that's why the SERVER - ENDPOINT (NAA) architecture exist.
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