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PeterSt
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« Reply #30 on: November 28, 2011, 02:50:18 pm » |
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Yes. A while back I have been measuring someone's system+monitor, and the monitor generated a significant amount (of measurable) noise.
I forgot the ins and outs ...
Peter
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W7 March 15, 2013 (0.9z-8-3a)
i7-870 Hyperthreading On (8 cores) @ 2.9GHz, *16GB*, Windows 7 Ultimate N 64bit SP1 on SATAII spinning disk, *No Paging File*, XX on OS disk, music on SATAII spinning disks, Galleries on SSD, Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/0 / Q1Factor = *10* (Dev.Buffer = 4096) / ClockRes = 15ms / Straight Contiguous / SFS = *120* / *120* / Phase not Invert / *Peak Extension On* / *Phase Alignment Off* / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive = USB3 2TB / UnAttended (Just Start) / *ALL* Services Off / WallPaper On / OSD On / No Running Time / Minimize OS / XTweaks : *Ultimate* / Time Performance Index : *Optimal* / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.2 (16ms) -> main amps -> Horn Speakers.
Remote Control : None
W8 May 24 2013 (0.9z-9)
XXHighEnd PC -> i7 3930K Hyperthreading On (12 cores) @0.76GHz (!!), 16GB, Windows 8 Pro 64bit on *EMedia SATAIII* 2.5" 7200RMP spinning disk, XX on OS disk, music on USB3 Sharkoon, No Galleries / Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/*3* / *Q1Factor = 10* / Dev.Buffer = 4096 / ClockRes = *1ms* / Straight Contiguous / SFS = *120* (max *120*) / not Invert / *(Phase Alignment On/Off not sure ! - I think Off*) Ph minus (strength *2*) / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive 1TB SATAIII 7200rpm / UnAttended (Just Start) / *All* Services Off / No WallPaper / No OSD / No Running Time / Minimize OS / XTweaks : Balanced Load = *45* / Nervous Rate = 100 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = On / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.3 (16ms) -> main amps -> Horn Speakers.
**Removed Switching Supplies from everywhere**
Global Moderator
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CoenP
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« Reply #31 on: November 28, 2011, 09:28:45 pm » |
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I get a lot of extra noise when I dim the monitor (I mean less luminous, not off). Furthermore I found the monitor powerplug orientation and place on the powerstrip surprisingly audible. Could it be me or do I see an aftermarket high-end-filter-monitor-decoupling-plugin-tool-opportunity here  ? regards, Coen |
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GA-Z68x-UD3H-b3 (don't use this cr*p mobo!),i5-2500k (igp@400MHz), 16G DDR3, W7 Ultimate x64 SP1, Phasure NOS1 USB (buf 4 ms) ->SE EL95 (0,8W)-> Altec VOT 515-8G/802/511E (700 hz LR 2nd order)
09-z8e: OS minimised ("stop all services" on); 16xAP; PE=on; ltcy=4096; q1, q1fact=1; appt scheme=3; sfs=2; SC memory; ph alignm=off PAx=0 (-); min os; clockres=10ms; decode hdcd=off; not switch.. =off; nos1@32bits/768kHz; 4ms driverbuffer ; Playbackdrive: primo ramdisc 7GB=disabled (and removed); xt tweaks: balanced ld: 98; nerv rate: 50-60; cpu: 1,0,0; timing: "not optimal"; usually playing attended.
Preliminary z8-2 settings different from above: q1=2, q1fact=1; sfs=220; ph alignm=on PAx=1 (-); clockres=15ms; 16ms NOS1 driverbuffer
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juanpmar
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« Reply #32 on: December 01, 2011, 03:03:58 pm » |
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I'm finding that if I connect the PC case to ground (using one of the ground wires in my 'star' ground arrangement, itself connected to a clean, totally isolated and ultra-low impedance earth) I get a phenomenal improvement in SQ. Well, as is often the case (with me at least) I think I've been lured into a false sense of improvement when doing this... There's obviously a lot more going on with the USB connection of the NOS1 than us mere mortals are aware of. I really wanted to get to the bottom of this and spent a few hours over the weekend trying a few things and listening to their effects. It seems that my monitor has a major affect on the sound. It doesn't matter if it is switched on or not... just the fact that it is physically connected to the PC changes the sound. I think that the monitor cable is creating a ground loop of some sort. Now this may not be an issue with other monitors, but mine is an older Dell monitor with an IEC socket, and I think the ground is connected internally to the cable shield. Anyway, the upshot is that the sound is much, much 'nicer' when I disconnect the monitor cable during playback. A PITA for sure, but definitely worth it. Try it! Mani. Hi Mani, In my case I canīt see differences when the monitor is connected (via VGA) or not. Neither with the keyboard and mouse connected to a hub with an USB active extension. But these issues, together with the one about the power supply, leads me to think that although the improvement in the software (XXHighEnd) and in the NOS1 will never end there are other important parts to which attention should be paid in order to work with synergy (remember that audiophile word?) with XXHE and the NOS1. Maybe now, that the NOS1 USB seems to have reached a very notable grade of perfection could be the time for Peter (sorry, we all know you work tirelessly) to take the task to investigate on this hardware, i.e. the power supply he was working on or how to get the less possible impact on the sound with the different connections: monitor, mouse and keyboard. Maybe the remote in his mind will be the solution... Juan |
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Processor i7 970: 3.2GHz-3.46GHz, 6+6 cores/ Windows 8 Pro/ Mb Asus X58/ RAM 24GB/ OS and XXHE in WD Velociraptor SATA III, 300Gb/ Music files:2 x WD 2Tb SATA in USB 3.0 box connected to an USB 3.0 powered hub and this one connected to an USB 3.0 port in the mb/ Playback Drive:WD5003ABYX SATA III/ Graphics:HD5770 1GB Passive/ PSU Corsair AX750/ TeckNet USB 3.0 PCIe (Renesas USB 3.0 Driver 2.0.34.0). HOW IīVE BUILT MY NEW PC... http://www.phasure.com/index.php?topic=1673.0Windows 8 Pro XXHE 0.9z-9b/ KS:Phasure NOS1 Out 4.0 /#4 Engine/Adaptive Mode / Q1=30, Q/2/3/4=0, Q5=3 / Q1Factor: 10/ Dev.Buffer: 4096/ ClockRes: 1ms/ Straight Contiguous/ SFS:120 (max 120)/ not Invert /Phase Alignment Off /Playerprio: Low /ThreadPrio: Real Time /Scheme:3 /UnAttended /All Services Off and Stop ALL Services /No WallPaper /No OSD /No Running Time /Minimize OS /XTweaks: Balanced Load: 45 /Nervous Rate: 100/ Cool when Idle:1 /Provide Stable Power: 1 /Utilize Cores always: 1 /Time Performance Index: Optimal /Time Stability: On /Double Octo Arc Prediction Upsampling /No Galleries. Music PC (TeckNet USB 3.0 PCI Express Card) >USB3.0 cable >PHASURE NOS1 (drv. v1.0.3a, 16ms) >Spectron monoblocks >VR-9SE MK2 |
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PeterSt
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« Reply #33 on: December 28, 2011, 09:27:03 am » |
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All, I tested a SOtM USB card in my system; Measured it and saw no difference (and in order to influence SQ by such a device I really should have). Sounded OK to me. Of course I already told that it shouldn't make a difference, but it is nice to confirm it (instead of some blahblah only). There is a difference though, because I was not able to use the 2ms Streaming Buffer for the NOS1; I tried 8ms as the alternative and that worked trouble free. Maybe this helps someone, Peter PS: Mani, obviously I went as far as installing a PCI card in my audio PC, which really isn't without hussle in my case. But since I did that anyway ... it is out now again, leaving space for that other PCI card. Well, you know ...  |
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Logged
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W7 March 15, 2013 (0.9z-8-3a)
i7-870 Hyperthreading On (8 cores) @ 2.9GHz, *16GB*, Windows 7 Ultimate N 64bit SP1 on SATAII spinning disk, *No Paging File*, XX on OS disk, music on SATAII spinning disks, Galleries on SSD, Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/0 / Q1Factor = *10* (Dev.Buffer = 4096) / ClockRes = 15ms / Straight Contiguous / SFS = *120* / *120* / Phase not Invert / *Peak Extension On* / *Phase Alignment Off* / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive = USB3 2TB / UnAttended (Just Start) / *ALL* Services Off / WallPaper On / OSD On / No Running Time / Minimize OS / XTweaks : *Ultimate* / Time Performance Index : *Optimal* / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.2 (16ms) -> main amps -> Horn Speakers.
Remote Control : None
W8 May 24 2013 (0.9z-9)
XXHighEnd PC -> i7 3930K Hyperthreading On (12 cores) @0.76GHz (!!), 16GB, Windows 8 Pro 64bit on *EMedia SATAIII* 2.5" 7200RMP spinning disk, XX on OS disk, music on USB3 Sharkoon, No Galleries / Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/*3* / *Q1Factor = 10* / Dev.Buffer = 4096 / ClockRes = *1ms* / Straight Contiguous / SFS = *120* (max *120*) / not Invert / *(Phase Alignment On/Off not sure ! - I think Off*) Ph minus (strength *2*) / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive 1TB SATAIII 7200rpm / UnAttended (Just Start) / *All* Services Off / No WallPaper / No OSD / No Running Time / Minimize OS / XTweaks : Balanced Load = *45* / Nervous Rate = 100 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = On / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.3 (16ms) -> main amps -> Horn Speakers.
**Removed Switching Supplies from everywhere**
Global Moderator
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jarek
Audio Loudspeaker
 Offline
Posts: 103
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« Reply #34 on: January 28, 2012, 03:51:09 pm » |
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I have SOTM USB in my system and the best combination for the sound quality is when I use SOTM for my keyboard and WiFi, and plug my NOS1 to one of computers integrated USB ports. NOS1 is the exclusive device using integrated USB ports. I know you might consider this stupid, but NOS1 sounds the best to me when plugged to the mainboard.
Jarek
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Windows 2008 Server Std 64bit *SP2* / dual boot with Win 7 Professional 64-bit *SP1* on SATAII spinning disk, XX on Spinning Disk, music on SATAII, i5-660 (4 cores) / 16GB RAM / Engine#4 *Adaptive Mode* / Q1/2/3/4/5 = *30*/0/0/0/0 (Dev.Buffer = *4096*) / ClockRes = *0,5ms* / Straight Contiguous SFS = 120 / *Minimize OS = Off* / *Double Octo* Arc Prediction Upsampling /-> 24/768 Phasure NOS1 async USB DAC -> ARC Ref 40 Preamp -> mainamps.
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PeterSt
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« Reply #35 on: February 02, 2012, 06:41:35 pm » |
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Thanks for sharing Jarek. Doesn't sound stupid at all, because this is what I saw myself (without listening).
Regards,
Peter
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W7 March 15, 2013 (0.9z-8-3a)
i7-870 Hyperthreading On (8 cores) @ 2.9GHz, *16GB*, Windows 7 Ultimate N 64bit SP1 on SATAII spinning disk, *No Paging File*, XX on OS disk, music on SATAII spinning disks, Galleries on SSD, Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/0 / Q1Factor = *10* (Dev.Buffer = 4096) / ClockRes = 15ms / Straight Contiguous / SFS = *120* / *120* / Phase not Invert / *Peak Extension On* / *Phase Alignment Off* / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive = USB3 2TB / UnAttended (Just Start) / *ALL* Services Off / WallPaper On / OSD On / No Running Time / Minimize OS / XTweaks : *Ultimate* / Time Performance Index : *Optimal* / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.2 (16ms) -> main amps -> Horn Speakers.
Remote Control : None
W8 May 24 2013 (0.9z-9)
XXHighEnd PC -> i7 3930K Hyperthreading On (12 cores) @0.76GHz (!!), 16GB, Windows 8 Pro 64bit on *EMedia SATAIII* 2.5" 7200RMP spinning disk, XX on OS disk, music on USB3 Sharkoon, No Galleries / Engine#4 Adaptive Mode / Q1/2/3/4/5 = *30*/0/0/0/*3* / *Q1Factor = 10* / Dev.Buffer = 4096 / ClockRes = *1ms* / Straight Contiguous / SFS = *120* (max *120*) / not Invert / *(Phase Alignment On/Off not sure ! - I think Off*) Ph minus (strength *2*) / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3 / Playback Drive 1TB SATAIII 7200rpm / UnAttended (Just Start) / *All* Services Off / No WallPaper / No OSD / No Running Time / Minimize OS / XTweaks : Balanced Load = *45* / Nervous Rate = 100 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = On / Double Octo Arc Prediction Upsampling / -> USB3 (MoBo) -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.3 (16ms) -> main amps -> Horn Speakers.
**Removed Switching Supplies from everywhere**
Global Moderator
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greywind11
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« Reply #36 on: June 23, 2012, 08:11:28 am » |
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Hi Jarek,
Just saw your post about the Sotm usb card and I have something to add. I tried this card as well and ended up with the same results, eventually sending it back to Jesus. Great guy he is by the way and I'd like to try his usb converter.
I ended up installing a 2-port usb3 card by Startech and it has solved all my problems. I listen a lot more now, without any hangups, FIFO errors and the sound is amazing. Now I need to upgrade my Zalman to i7.
Can't imagine the sound will get much better though.
/Lee
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XXhighend 9z6.1, KS mode eng#4 adaptive, 4096 buffer size, low/realtime, SFS 430, Q30,0,0,0,0; Zalman TNN-300; PQ5EM 16GB RAM, 2 cores; OCZ 120GB SSHD; Sotm Sata and Fan power filters; Win7 64bit sp1-->Phasure NOS1 USB.
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