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Author Topic: Questions, questions , questions....  (Read 23002 times)
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PeterSt
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« Reply #15 on: January 03, 2010, 01:32:45 am »

Mani/Peter, given that the computing power now exists today to do the oversampling in hardware integrated with the DAC why would one expect to achieve better sound quality by doing it outboard of the DAC and using a NOS DAC? 

Flexibility and asynchronous power. So, the second version of Arc Prediction is on its way, and if you would have had the DAC and it would have been internal, no way upgrades would exist for that, or it would be relatively (very) difficult (which is what I planned originally but it takes additional hardware and complexities).
The power emerges from the fact it can be done just semi real time (as it is done now, in the preprocessing stage).

February is the plan, but last week I learned that the transformers I need whistle will be produced in February ... fool
But at least something improved again (which I didn't tell about yet).
Logged

For the Stealth III LPS PC :
W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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Telstar
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« Reply #16 on: January 04, 2010, 02:16:36 pm »

This is what I find so exciting. The best sound and measured performance is with oversampling... BUT done right. And this is exactly what QAP gives (and OAP will give) us.

One of the biggest issues with 'old' DACs like mine is that they just didn't have the computing power back then to do oversampling/filtering as well as we can now. But if this is now done in the software, and the inferior oversampling/filtering in the DAC can be defeated, then such DACs are given a new lease of life.

In a way, this is a bit like the original McLaren F1 road car. Put it on a track against a 'modern' supercar, and it will struggle (see Martin Brundle's video from a few years ago). However, replace its brakes with modern ceramic ones... and I know which car I'd take.

Mani.

Thank you for repeating what i was trying to explain on computer asylum from about one year ago Happy
The problem was that until now it lacked a software able to do that seamlessly and in realtime.
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(2nd Apr 2018)
Software:
W10 14393 Pro x64 | XXHE 2.10 | MinOS | Q=14x1/0/0/0/0 | SFS 5,19 mixed contiguous | Nervous rate 1 | 4096k buffer |

Hardware:
OrigenAE H5 case | E5300 fanless |  8GB RAM | Winmate DC-DC fanless PSU | OS on SSD | Renesas USB3 pcie card | Belden highspeed usb cable | Audio-gd dac19 NOS with sigxer F1 | My_ref_FE mono amps | Albedo Apex speakers
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« Reply #17 on: January 04, 2010, 02:20:48 pm »

In short, Peter is creating what I believe is the world's first NOS 24/352.8K DAC.

Mani.

I think it is the second DXD filterless DAC, the DAD can work filterless only at DXD sampling rate (which now i dont remember if it is 352.8 or 384k).
It is for sure the first filterless DAC at 24/176,4k
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(2nd Apr 2018)
Software:
W10 14393 Pro x64 | XXHE 2.10 | MinOS | Q=14x1/0/0/0/0 | SFS 5,19 mixed contiguous | Nervous rate 1 | 4096k buffer |

Hardware:
OrigenAE H5 case | E5300 fanless |  8GB RAM | Winmate DC-DC fanless PSU | OS on SSD | Renesas USB3 pcie card | Belden highspeed usb cable | Audio-gd dac19 NOS with sigxer F1 | My_ref_FE mono amps | Albedo Apex speakers
manisandher
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« Reply #18 on: January 04, 2010, 03:53:46 pm »

I know nothing about the AX24, other than it uses multibit delta-sigma chips (as does dCS). I didn't realise that you could use these without oversampling/filtering...

Mani.
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Main System:
Phasure Mach III (Win 14393.0 on RAM-OS / controlled by RDC, / connected directly to music server / XXHighEnd 2.11 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=10 / xQ1=15 / Q3,4,5=1 / SFS=4.00 / XTweaks = 34, 10, 0, 0, 0 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 8x Arc Prediction / switch #5 'up/off' / Unattended) mobo USB3 port -> Lush^3 -> Phasure NOS1a B75 G3 -> 8m Blaxius^2 -> First Watt F5 mono amps -> Tune Audio Anima horn speakers
Office System:
Phasure Stealth II -> Lush^2 -> RME ADI-2 Pro FS R -> Neurochrome 286 mono amps -> Tune Audio Marvel horn speakers
PeterSt
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« Reply #19 on: January 04, 2010, 04:57:46 pm »

I know nothing about the AX24, other than it uses multibit delta-sigma chips (as does dCS). I didn't realise that you could use these without oversampling/filtering...

Mani.

Which - if it is delta-sigma - I won't believe much ... Happy
Logged

For the Stealth III LPS PC :
W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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