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manisandher
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« Reply #15 on: December 06, 2010, 02:38:09 pm » |
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Flecko, with your Audio-GD Ref 7 DAC, are you bypassing the oversampling filter when you use Arc Prediction? I think you should...
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
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Flecko
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« Reply #16 on: December 06, 2010, 04:53:06 pm » |
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Flecko, with your Audio-GD Ref 7 DAC, are you bypassing the oversampling filter when you use Arc Prediction? I think you should...
Mani. never thought about that...can I do this by just switching the jumpers? Do you know where I get the information how to do it? Great Idea! |
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Software: Windows7 Ultimatex64SP1 | XXHighend 9z9b
Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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Flecko
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« Reply #17 on: December 06, 2010, 05:11:39 pm » |
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I found the settings... GREAT.. I will play  |
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Software: Windows7 Ultimatex64SP1 | XXHighend 9z9b
Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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manisandher
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« Reply #18 on: December 06, 2010, 05:23:17 pm » |
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It's just the little dip switch in the unit, isn't it?
Try to use QAP (i.e. 4x) upsampling if you can because DAP (2x) isn't going to be high enough without extra filtering. I think QAP is the filterless lower limit, with OAP (8x) or higher being the ideal.
In any event, keep the volume down as you're trying these things out because you may get some HF stuff coming through (depending on your system).
Let us know how it goes.
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
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Marcin_gps
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« Reply #19 on: December 06, 2010, 05:37:54 pm » |
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The Reference 7 won't allow for QAP as it is limited to 24/96 AFAIK.
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Flecko
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« Reply #20 on: December 06, 2010, 05:41:57 pm » |
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WOW! That was a great hint    Highs are so much more present and real now...must listen a little longer there are different settings...1xoversampling and nos ...what is the differents? |
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Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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manisandher
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« Reply #21 on: December 06, 2010, 05:49:51 pm » |
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OK, be very, very careful!
If Marcin is right, then you are now using DAP with no filter in the Ref7, right? This may be too low to go filterless - maybe Peter can give his advice.
I strongly advise against not engaging any filter at all either in XX (AP or AI) or in your DAC. You will have a lot of HF stuff coming through. It may sound quite euphonic at first, but it's not a good thing to do... Peter often quotes 30% THD, etc.
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
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Flecko
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« Reply #22 on: December 06, 2010, 05:51:28 pm » |
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here are the settings one can make http://assets.head-fi.org/c/c1/c19b166b_DSP1+pin+settings.JPGIt's just the little dip switch in the unit, isn't it? Yes. there are two settings one can make. dip 7 is bypass and dip 4,5 one can set oversampling from 1X to 8x The differents is not realy clear to me. is 1x oversampling still oversampling? It sounds not as bright as bypass. he Reference 7 won't allow for QAP as it is limited to 24/96 AFAIK Jep, QAP doesn't work. I strongly advise against not engaging any filter at all either in XX (AP or AI) or in your DAC. You will have a lot of HF stuff coming through. It may sound quite euphonic at first, but it's not a good thing to do... Peter often quotes 30% THD, etc. ok thx ... i will go back to the 1x os settings. |
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Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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manisandher
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« Reply #23 on: December 06, 2010, 06:04:29 pm » |
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he Reference 7 won't allow for QAP as it is limited to 24/96 AFAIK Jep, QAP doesn't work. This is totally crazy. I don't see any reason why Audio-GD have limited the non-USB inputs to 96KHz. Maybe because of the filter... but this can be bypassed! 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
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Marcin_gps
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« Reply #24 on: December 06, 2010, 06:23:46 pm » |
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It would be great it that was possible |
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Flecko
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« Reply #25 on: December 06, 2010, 06:44:54 pm » |
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Ok. First results no filter is like mani sayd no good idea. it has more present highs but after some time you know there is something wrong. With the oversampling it is different. Standart setting 8x. The first new setting I tried was 1x os. The highs become much more dynamic and brighter (people sayed it should be the other way round..because earlyer roll off.) drums sounded much more real. 8x sounds also nice a little bit layed back and rounder. At the moment I listen two 4x, which seems to be a good compromise. Maybe because 2usx4os=8x This is totally crazy. I don't see any reason why Audio-GD have limited the non-USB inputs to 96KHz. Maybe because of the filter... but this can be bypassed! Any Idea how to do? |
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Software: Windows7 Ultimatex64SP1 | XXHighend 9z9b
Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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Marcin_gps
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« Reply #26 on: December 06, 2010, 06:47:35 pm » |
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I think you should direct that question to Kingwa from Audio-GD.
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PeterSt
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« Reply #27 on: December 06, 2010, 07:21:14 pm » |
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Adrian,
Maybe it is only me who doesn't understand or can follow ... maybe it is you ... I am not sure;
You should try No oversampling and No filtering in the DAC, and next use Double Arc Prediction. That is, this is what everybody is advising you (I will too). If that doesn't sound good to you, try the oversampling in the DAC.
It now looks as if you only tried the latter.
Btw, 96KHz "only" can have a good reason; it depends on the design. And indeed the Audio-GD does that (96KHz) AFAIK.
Peter
PS: And what also counts : Double Arc Prediction (without filter and oversampling in the DAC) officially is not enough. Whether you perceive this highly depends on the amps but also other "perceiving mechanisms" in the body. The harmonic distortion will start right above 24KHz for 48KHz base material or 22.050KHz for 44.1 base material. The peaks of it will be very close to the fundamentals. So, officially no good.
Also : without anything (filter / upsampling) those peaks will be right in the audio band. And on another hand : many people are not bothered by that.
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*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.
Global Moderator
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Flecko
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« Reply #28 on: December 06, 2010, 08:10:50 pm » |
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Maybe it is only me who doesn't understand or can follow ... maybe it is you ... I am not sure;
You should try No oversampling and No filtering in the DAC, and next use Double Arc Prediction. That is, this is what everybody is advising you (I will too). If that doesn't sound good to you, try the oversampling in the DAC.
It now looks as if you only tried the latter.
Thx... now I get it. I was to excited to get a clear thought. Ok there is the oversampling and the filter. I can switch the filter on/off and adjust oversampling from 1x to 8x. Ok. What I did: Changed oversampling rate from 1x to 8x with "filter=on" (best was 4x os) switched the filter off and 8x oversampling=on (I thought the oversampling would be off if the filter is off) I will try to disable both and go up with oversampling if it sounds bad... |
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Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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Flecko
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« Reply #29 on: December 06, 2010, 08:41:34 pm » |
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Best sound is with DAP and 4xOs with filter=on. without filter it sounds grainy no matter if I use 8,4,2,1x Os. After all. Today I could do a lot for the sound, very exciting. Must be my gift from Santa  Claus. THX All |
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Software: Windows7 Ultimatex64SP1 | XXHighend 9z9b
Hardware: | Gigabyte X79-UD3 | i7-3820 | 16 GB DDR3 | OS on 128 GB Samsung SSD 830 | Music on 2TB WD Caviar Green | Seasonic X-660
XXHE Settings: | Engine 4 | Adaptive | Buffer=1024 | Q12345=[14,0,0,0,0] | xQ1=1 | Q5=3 | Scheme=3 | Mixed Contiguous with SFS=12 | 176.4kHz32bit | ArcPred + Peakextend | Clock=1ms |
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