Head-Fi.org › Forums › Equipment Forums › Computer Audio › Stello U3: async USB to coax & AES/EBU transport <Impressions updated>
New Posts  All Forums:Forum Nav:

Stello U3: async USB to coax & AES/EBU transport <Impressions updated> - Page 18

post #256 of 279

Hello everyone! I am a new member of this wonderful community of which I have been a long time lurker. 

 

I want to know how I can update the version 1.22 driver that came with my U3 which is fed by my windows 7 64bit laptop and out to my JH3a/16. Thanks.

post #257 of 279
Thread Starter 
Quote:
Originally Posted by aivar1988 View Post

any options for HP compaq?

 

if that's a laptop, find a linear PSU with the right specs? Otherwise there are many linear ATX PSU's but they're pricey.

 

Quote:

Originally Posted by aethelberht View Post

 

how I can update the version 1.22 driver that came with my U3

 

U3 / DP1 PC USB port Firmware Upgrade happy_face1.gif

 

Quote:

Originally Posted by uelover View Post

 

There are also people advocating the use of SSD for computer playback. However, software like Audirvana+ boasts of memory playback and all the benefits that could be brought about by the use of SSD are made redundant.

 

I think it's got more to do with noise pollution of the common computer ground as HDD's are very noisy due to their high speed motor and all.


Edited by leeperry - 4/24/13 at 12:08pm
post #258 of 279

Thank you, leeperry. I was expecting the update to solve my skipping and hiccuping issues. It happens every so often. Is that normal? Can it be completely removed? I am using JRiver 17, output ASIO mode. 

post #259 of 279
Thread Starter 
Quote:
Originally Posted by aethelberht View Post

I was expecting the update to solve my skipping and hiccuping issues. It happens every so often. Is that normal? Can it be completely removed?


Do you ever get red bars with this app: http://www.thesycon.de/deu/latency_check.shtml ?

post #260 of 279
Quote:
Originally Posted by leeperry View Post


Do you ever get red bars with this app: http://www.thesycon.de/deu/latency_check.shtml ?

I do get the red bars. Hmm. I guess I now have to disable devices one at a time. Is that the only solution -to isolate the misbehaving drivers one at a time?

post #261 of 279
Quote:
Originally Posted by leeperry View Post


Do you ever get red bars with this app: http://www.thesycon.de/deu/latency_check.shtml ?

I've disabled every possible devices that can be disabled without hurting my system.. to no avail...

post #262 of 279
Thread Starter 

Well, something's hijacking the DPC latency of your system for some reason....is it a laptop? Did you try killing all residents apps such as antivirus and so?

 

Troubleshooting can be tricky but there's another app that could help: http://www.resplendence.com/latencymon

post #263 of 279
Quote:
Originally Posted by leeperry View Post

Well, something's hijacking the DPC latency of your system for some reason....is it a laptop? Did you try killing all residents apps such as antivirus and so?

 

Troubleshooting can be tricky but there's another app that could help: http://www.resplendence.com/latencymon

Yes, my system is a laptop: Windows 7 64bit, Intel Core Duo 2.53GHz, Mobility Radeon HD 4670.

 

Running LatencyMon, it reported that the highest ISR exe time was ataport.sys -ATAPI Driver extension while the highest DPC routine time was USBPORT.SYS.

post #264 of 279
Thread Starter 

There are so many things to try:

-enable HPET

-update the mobo BIOS and try messing around with power management settings(S3 can be a problem IIRC)

-if you disable all USB hubs in the Windows device manager, no more red bars? If so, troubleshoot until you find the culprit.

 

Let us know happy_face1.gif

post #265 of 279
Quote:
Originally Posted by leeperry View Post

There are so many things to try:

-enable HPET

-update the mobo BIOS and try messing around with power management settings(S3 can be a problem IIRC)

-if you disable all USB hubs in the Windows device manager, no more red bars? If so, troubleshoot until you find the culprit.

 

Let us know happy_face1.gif

I discovered the culprit: AMD Catalyst Controller. I uninstalled it and voila...audio can be enjoyed again. o2smile.gif

post #266 of 279
Thread Starter 

good work [:ramada]

post #267 of 279
Quote:
Originally Posted by uelover View Post

On a side note, I am very very satisfied and happy with the improvement brought about by the iFi iUSB. It really brings the Stello U3 to another league altogether. They will release a dual headed USB cable very soon that the iUSB is designed to work with at much more 'reasonable' price than other such cables, the most famous being the Acoustic Revive USB-1.0SPS.

 

 

Hi uelover, what are you using to power this cable? The iFi unit? Were you using a AQVOX before that?

post #268 of 279
Quote:
Originally Posted by robertsong View Post

 

Hi uelover, what are you using to power this cable? The iFi unit? Were you using a AQVOX before that?

 

That cable has yet to be released in my country. I am using the stock USB cable that came with the iFi iUSB. Wasn't using the AQVOX previously. Is that compatible with USB 2.0 full speed, supporting all the different sampling rates?

post #269 of 279

So you  are using the Stello U3 as the usb/spdif converter with the iFi as the dac? Sounds like the the new Gemini y cable and USB power unit would be your best bet.

 

http://www.ifi-audio.com/en/iUSB.html
 

post #270 of 279
Quote:
Originally Posted by robertsong View Post

So you  are using the Stello U3 as the usb/spdif converter with the iFi as the dac? Sounds like the the new Gemini y cable and USB power unit would be your best bet.

 

http://www.ifi-audio.com/en/iUSB.html
 

 

iFi iUSB is NOT a DAC. It is a power regulator that stands between your computer and the Stello U3 (an USB to SPDIF converter) to clean up the power line. The Stello U3 is passively powered by the USB line power so it will benefit from a cleaner power source.

 

The DAC I use is Benchmark DAC1.

 

This is the diagram of the iFi iUSB that I posed just a few posts earlier. The I/O ports will tell you how it is supposed to work:

 

1000


Edited by uelover - 5/1/13 at 9:44pm
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Computer Audio
Head-Fi.org › Forums › Equipment Forums › Computer Audio › Stello U3: async USB to coax & AES/EBU transport <Impressions updated>