Yes, it is synchronous averaging. It only works with the internal source at this time. I have tried it and its interesting to watch. A really clean low distortion plot just slowly dissolves into a forest of spurs you did not know was there.
You need to make a file called experimental (no extension) and put it in your equivalent of: C:\Users\Demian\Documents\QuantAsylum\QA400
You need to make a file called experimental (no extension) and put it in your equivalent of: C:\Users\Demian\Documents\QuantAsylum\QA400
I just installed the prerelease 1.052 and noticed that I got a lot of link 'Drop' flashes, and the acquision doesn't work.
The official release 1.00 works fine.
I'm on an Intel i3, W7/64b machine.
It seems from the Help|About in 1.052 that that version is not compiled for 64bit OS's.
Anybody had the same experience?
jan
The official release 1.00 works fine.
I'm on an Intel i3, W7/64b machine.
It seems from the Help|About in 1.052 that that version is not compiled for 64bit OS's.
Anybody had the same experience?
jan
I have tried it out on my Windows 7, 64 bit machine also and overall it seems to work fine. The only area where I get not quite perfect operation is when I am set for 48khz and 65k resolution. On both my Windows 7 desktop and my XP laptop, the red link light will flash off between samples and the interface bogs down.
Funny enough if you look at Help|About both version 1.00 and 1.052 report that they operate as a 32bit version while my W7 is a 64bit machine.
I also noted that I can improve performance by moving to another USB port that is connected to another USB bridge, that has no other devices attached.
Anyway, I have a i5 machine with more performance and hi speed USB (2.0 and 3.0) on order so I hope that then it will be totally stable.
jan
I also noted that I can improve performance by moving to another USB port that is connected to another USB bridge, that has no other devices attached.
Anyway, I have a i5 machine with more performance and hi speed USB (2.0 and 3.0) on order so I hope that then it will be totally stable.
jan
Why don't I get an email notice when a new volume is released? Don't you have setup a mailing list, Jan?
Going to check it and order ASAP!
You would think we were quibbling about USB audio or something. . .
Some USB ports hubs and interfaces work better than others. And newer chipsets work better.My laptop has an Intel chipset for everything. I have a big desktop I can test with that is AMD based. I'll try it with that system.
yes-lots of red light Drop flashes here too.
I have not returned to ver 1.00... i'll try that.
-RNM
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Why don't I get an email notice when a new volume is released? Don't you have setup a mailing list, Jan?
Going to check it and order ASAP!
Actually I did send out a mailing to all email addresses of people that have registered on the website.
Are you registered?
jan
This is very true. However usb2 controllers should be good on most computers/motherboards sold in the last 3 years.
USB3 is a different matter, so I would avoid to use a usb3 port in the first place.
Yes, I think so. Can you check if your mailer filter words such as "spam", because my email address is @spamcop.net
QA400 interface update #2
This is the current state of my efforts.
I have jumpered the gain switches and set for fixed gain. Nominally +16 dB out (approx 7V RMS) and -16 dB in (7V will get 1V at the input of the QA400)
With these settings the loopback gives the performance in the pictures. The output is balanced and can either pin can be shorted to ground with virtually no change in output voltage or distortion (the second harmonic rises). The input is fully differential with very high common mode rejection.
This is the current state of my efforts.
I have jumpered the gain switches and set for fixed gain. Nominally +16 dB out (approx 7V RMS) and -16 dB in (7V will get 1V at the input of the QA400)
With these settings the loopback gives the performance in the pictures. The output is balanced and can either pin can be shorted to ground with virtually no change in output voltage or distortion (the second harmonic rises). The input is fully differential with very high common mode rejection.
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