pagan
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Post by pagan on Nov 16, 2012 13:00:08 GMT
there was a talk going on in a thread that was about using the b3 in sync mode, diyaudio or Ian's FIFO reclocker or other,didn't bookmark at time. Do a search on this, "usb i2s sync mode b3" comes up with relevent threads I think... also talks about coax for clock and/or i2s signals. 100Mhz clock on the b3 for the use of oversampling may not be as goood as sync mode and lower clock. I've yet to try it. another trade off for phase noise might be between shorter distance between clock and dac and better clock further away. allan ps typing on a tablet is a pita :-) hifiduino.wordpress.com/2012/08/21/ians-fifo-reclocker-and-buffalo-iii-dac/Hi Allan yes i've been trying to read through Ian's FIFO thread but it's a bit of a monster. as far as i can tell with the BIII in SYNC V's ASYNC the differences have subjectively been found to be presentational ones. people seem to be choosing on that basis. I'd have to say that the clock used on the BIII seems to be a very high quality unit so it's going to take some doing to better it. but without trying it's hard to know for sure. the Idea of re clocking close to the DAC really interests me mostly because I'm using Teleporters. theoretically the Teleporters introduce very little in the way of jitter but my natural instinct dictates that any jitter is too much. have you managed to find time to plug your Amanero in yet? I'm looking forward to hearing your thoughts on that. Alan whilst we are on the subject did you notice that TP have just released an updated AVCC module? it is supposed to be closer in design to the Trident 3. I've ordered one up but things usually take 3 weeks or so from TP.(birthday pressy from mother in law ) yup i get a little P'ed off with hifi elitism and try to involve the whole family in my hobby. ;D '' i don't know what to get you for your birthday'' ha don't worry on that i know just the thing I'll report back once i have it fitted. take care Shaun I have some teleporters here too, havn't used them yet. Was going to use them in a soundcard the transmit i2s direct. Have you tried this yet? TP's tridents and AVCC.... Didn't know they were redoing the AVCC, but then there little technical data or spec's on any of there psu's. We'll need some input from Leo, as he's tried a variety of reg's. I'm interested in trying the PH reg's, at least there's some spec's so you can see what he's trying to achieve. "with the BIII in SYNC V's ASYNC the" I wonder whether it's the dac itself, being, the internal oversampling/reclocking. Allan ps dam I admitted it, I like spec's too.... Oh man is Alex going to give me heaps ;D
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Deleted
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Post by Deleted on Nov 16, 2012 14:00:33 GMT
Hi Allan ‘’Shaun I have some teleporters here too, havn't used them yet. Was going to use them in a soundcard the transmit i2s direct. Have you tried this yet?’’ No but it sounds like an interesting idea all the same. Ok on the teleporters. The main thing I’ve found with these is they are a little fussy in terms of ground potentials between Transport and DAC. I measured a few MV difference between my transport box (WAVEIO) and DAC. Not significant in itself but enough to prevent the Buffalo from locking. A little fiddling on that front pays off. I tried a few combinations and found that grounding both Teleporters through their respective PSU’s worked out nicely. You may need to try a few combinations to find the right one for you. i'm pretty sure that you know the above but just in case "with the BIII in SYNC V's ASYNC the" I wonder whether it's the dac itself, being, the internal oversampling/reclocking’’ Yes interesting thought With the ESS9018 AND ESS2022/3 the internal oversampling/reclocking is dormant (not switched off) which could have a larger impact on the sound than just SYNC or ASYNC. I’m thinking of trying some PH but much further down the line when the BII is less shinny and new. ATM I still love the sound enough to not want to change much. ‘’ps dam I admitted it, I like spec's too.... ’’ Nothing wrong with that Allan. It’s all part of the story. take care
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Post by Deleted on Nov 16, 2012 14:36:07 GMT
With the ESS9018 AND ESS2022/3 the internal oversampling/reclocking is dormant (not switched off) which could have a larger impact on the sound than just SYNC or ASYNC. In ASYNC the Sabres use internal PLL to synthesise needed frq using local XO as reference. When in this mode you get to use PLL modes (from"Best" to "Lowest") depending on quality of incoming signal. When in SYNC PLL stays idle, oversampling in done using incoming MCLK as master signal. Only way to disable internal oversampling (not to confuse with ASRC) is using passthrough mode (ie when connected to external DSP/Processor).
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Post by Deleted on Nov 18, 2012 16:50:18 GMT
Clutching at straws here guys but I have an early version of a J Kenny mod'd HiFace - anyone any idea if it lends itself to being used to feed the I2S output from the Amanero board into? TIA, Dave.
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Post by Deleted on Nov 18, 2012 17:10:04 GMT
Dave, do you mean feeding the output of the Amanero to the HiFace? if so, the answer is no. They are both "sources", you need a "destination" aka DAC.
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Post by Deleted on Nov 18, 2012 18:07:22 GMT
Dave, do you mean feeding the output of the Amanero to the HiFace? if so, the answer is no. They are both "sources", you need a "destination" aka DAC. Yes Javier, that's exactly what I mean't. Ah well, another plan bites the dust!! Dave.
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Post by Deleted on Nov 18, 2012 20:53:32 GMT
In preparation for the arrival of some HQ USB cable which I intend to use in short lengths I thought I'd up the ante by shortening my existing "reasonable quality" modded lead. Was about 1.8m before and now approx. 35cms, which is about as short as I can go and still realistically make the connection once all is re-cased. I concur with other reports thus far, more solidity, better bass and the slight "over-crispness" in the HFs has calmed noticably. Something I tried to do with the filter on the PK but other effects were detrimental.
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Post by Deleted on Nov 18, 2012 21:39:50 GMT
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Post by Deleted on Nov 19, 2012 9:24:07 GMT
In preparation for the arrival of some HQ USB cable which I intend to use in short lengths I thought I'd up the ante by shortening my existing "reasonable quality" modded lead. Was about 1.8m before and now approx. 35cms, which is about as short as I can go and still realistically make the connection once all is re-cased. I concur with other reports thus far, more solidity, better bass and the slight "over-crispness" in the HFs has calmed noticably. Something I tried to do with the filter on the PK but other effects were detrimental. Hi Chris yes I've also had the same results shortening my USB cables which is why I've kept saying '' the shorter the better''. because size really does matter that's one of the main reasons i ended up opting for the Teleporters. they allow me to have my PC located in a practical place (next to my music seat)without having to use 5M+ of USB cable. and USB is good for 5M runs? not in my experience if HQ playback is required. i think that JK has also found this to be the case as he advocates very short USB connections to his Hiface/DACs. yes 5M works (just) but what is it doing to the SQ. nothing nice i think Hi Javier new drivers DL and installed thanks for the heads up. take care
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pagan
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Post by pagan on Nov 19, 2012 11:33:47 GMT
In preparation for the arrival of some HQ USB cable which I intend to use in short lengths I thought I'd up the ante by shortening my existing "reasonable quality" modded lead. Was about 1.8m before and now approx. 35cms, which is about as short as I can go and still realistically make the connection once all is re-cased. I concur with other reports thus far, more solidity, better bass and the slight "over-crispness" in the HFs has calmed noticably. Something I tried to do with the filter on the PK but other effects were detrimental. Hi Chris yes I've also had the same results shortening my USB cables which is why I've kept saying '' the shorter the better''. because size really does matter that's one of the main reasons i ended up opting for the Teleporters. they allow me to have my PC located in a practical place (next to my music seat)without having to use 5M+ of USB cable. and USB is good for 5M runs? not in my experience if HQ playback is required. i think that JK has also found this to be the case as he advocates very short USB connections to his Hiface/DACs. yes 5M works (just) but what is it doing to the SQ. nothing nice i think Hi Javier new drivers DL and installed thanks for the heads up. take care So you use the Amanero nest to the pc and then transmit i2s over the longer distance via teleporter to the dac? Then why convert the i2s that's possible from the sound card to usb in the first place? Allan
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Post by Deleted on Nov 19, 2012 12:33:01 GMT
Aye laddy, I thought it was time "I got with the program"
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Post by Deleted on Nov 19, 2012 14:28:08 GMT
Then why convert the i2s that's possible from the sound card to usb in the first place? The USB signal is not comming from the soundcard so there is njo "conversion to USB". They are alternative routes. The decoded signal from the player can go to either a PCI/PCIe soundcard OR to an USB one, not first to the former and from there to the latter. It is very possible and even easy to tap I2S from, say, an Asus Xonar ST card as the signals are exposed in the H6 daughter card's connector pins. In other cases it won't be so easy but still perfectly doable. The main advantage from the Amanero board would be 352.8/384 PCM and DSD capabilities. Other advantages would be in the PS tweaking area and even more advanced, galvanic isolation plus reclocking (surprise comming soon).
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Post by Deleted on Nov 19, 2012 14:35:43 GMT
Then why convert the i2s that's possible from the sound card to usb in the first place? The USB signal is not comming from the soundcard so there is njo "conversion to USB". They are alternative routes. The decoded signal from the player can go to either a PCI/PCIe soundcard OR to an USB one, not first to the former and from there to the latter. It is very possible and even easy to tap I2S from, say, an Asus Xonar ST card as the signals are exposed in the H6 daughter card's connector pins. In other cases it won't be so easy but still perfectly doable. The main advantage from the Amanero board would be 352.8/384 PCM and DSD capabilities. Other advantages would be in the PS tweaking area and even more advanced, galvanic isolation plus reclocking (suprise comming soon). Hi Allan ''So you use the Amanero nest to the pc and then transmit i2s over the longer distance via teleporter to the dac'' if you are asking if I'm using the Teleporters the way that Russ intended (he designed them to use with his up coming USB/I2S board). then the answer is yes maybe I'm missing something but i thought that it's ability to work into long cables (up to 100ft) was his whole reason to use LVDS in the first place. but i may be wrong on that. if you are saying that the PCI route is better then you may be right on that. but that's why I'm using a PCI/USB card in my PC.(just a cheap one) I'd be interested in being pointed in the right direction for I2S direct from a sound card. sounds good Hi Javier yup i was going to say that but nooooo where near a well as you have ''(surprise comming soon).'' OOOOO i love surprises green house roof on take care
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Post by Deleted on Nov 19, 2012 15:09:31 GMT
ooops, missed an "r", corrected.
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Post by Deleted on Nov 19, 2012 20:35:42 GMT
Anyone has USB 3.0 ports in his PC? New V. 1.0.55 drivers has just been released correcting Combo384 non working with USB 3.0 ports. I'd appreciate if anyone could verify as I don't have my board ATM.
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Post by Deleted on Nov 19, 2012 21:37:06 GMT
Hi Javier, I have USB 3.0 ports on my HTPC but I don't suppose I can help can I?? Dave.
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Post by Deleted on Nov 19, 2012 21:43:48 GMT
Up to a point you actually can. Are you available for a brief remote session?
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Post by Deleted on Nov 20, 2012 7:07:26 GMT
Allan The moral here seems to be to keep ALL interconnections as short as possible and preferably on the same PCB with proper layout,screening and impedance matching. Alex
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pagan
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Post by pagan on Nov 20, 2012 11:56:49 GMT
Then why convert the i2s that's possible from the sound card to usb in the first place? The main advantage from the Amanero board would be 352.8/384 PCM and DSD capabilities. Other advantages would be in the PS tweaking area and even more advanced, galvanic isolation plus reclocking (surprise comming soon). The transporters can also transmit DSD, not quite sure about the max frequency, but I'll look into it tomorrow. Allan
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Post by Deleted on Nov 25, 2012 22:39:41 GMT
For those who have not been following the thread at DIYA, there are both new drivers and firmware available. Drivers:amanero.com/drivers.htmChangelog: 1.0.56: -Re-Enabled all audio formats in windows control panel 1.0.55: - Fixed L/R alignment on sample rate change - Fixed USB 3.0 Bus driver compatibiliy. 1.0.54: - Fixed problem about KS device enumeration during a playback. Firmware:Download the tool and follow instructions to the letter www.amanero.com/howto.htm
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XTRProf
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Post by XTRProf on Nov 25, 2012 23:04:59 GMT
For those who have not been following the thread at DIYA, there are both new drivers and firmware available. Drivers:amanero.com/drivers.htmChangelog: 1.0.56: -Re-Enabled all audio formats in windows control panel 1.0.55: - Fixed L/R alignment on sample rate change - Fixed USB 3.0 Bus driver compatibiliy. 1.0.54: - Fixed problem about KS device enumeration during a playback. Firmware:Download the tool and follow instructions to the letter www.amanero.com/howto.htmI'm not a guy who constanty updates firmwares or drivers unless needed. As the latest are already some new versions down the road from what I have I think I will do that today. Thanks Javier.
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XTRProf
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Post by XTRProf on Nov 25, 2012 23:57:33 GMT
Btw, Javier, how do we check that the latest driver for Amanero is installed in Windows 7? Went to Device Manager and only shows Microsoft USB device drivers. Ya, to see V1.0.56.
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XTRProf
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Post by XTRProf on Nov 26, 2012 0:23:39 GMT
I had answered myself when I went into Foolbar Output.
Ya, now how to check for firmware V1.56 is in the Amanero?
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Post by Deleted on Nov 26, 2012 9:34:12 GMT
Chong, you need to have the Amanero connected to the PC. It shows the version on the USB icon in the icon tray at the lower right of the screen and also on the Device Manager under sound devices.
I don't recommend installing a newer driver on top of the old one as if it was an update, I rather recommend:
1) With the card connected go to "Device Manager" -> "Sound Devices...." and there tight click teh Amanero entry an select uninstall checking the "remove drivers from system" box.
2) Disconnect the Amanero
3) Install new drivers (setup32.exe or setup64.exe depending on OS)
4) Reconnect the board, stop Windows from trying to find a driver from "Windows Update", it will then install the corect one.
There has already been another report at DIYA that the combo of latest driver and firmware fixes all known problems.
With a little luck we should get an ASIO compliant driver this week which, provided it works OK, will finally close the driver chapter.
I asked for an update tool that will let the user revert to a previous firmware in case of problems with newer firmware like it happened with 1.055, Domenico told me he will release it soon.
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Post by Deleted on Nov 26, 2012 20:23:45 GMT
Hi Javier,
That's good news on the ASIO front! I haven't done any updating since your help on the music pc and deliberately so.
Once a stable ASIO hits I'll play catchup.
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