DIY Audio Analyzer with AK5397/AK5394A and AK4490

[JensH]

Generally it is best to connect the USB directly, without a hub. But there is sometimes a hub internally in the PC.
Short and good quality USB cables are of course the best. I have not seen issues with relatively long cables though, e.g. 1.8 m.

 

[anatech]

Hi Jens,
I'm running mine with a USB cable longer than 1m (probably 2m), it works fine. I did use a really good cable. Windows goes stupid sometimes and I have to reboot the computer, cycle power on the RTX unit and sometimes unplug and insert the USB. This is purely a Windows problem (10 Pro, 7 Pro was solid). I'm using both Arta for quick stuff, and M.I.

You designed a wonderful unit Jens, thank you so much!!

 

[capslock]

Found a shorter USB-cable (in fact stole it from the trusty old QA400) and things seem to be working fine now, except that I will have to delve into the MI manual because this can't be true:

 

[JensH]

It looks like a digital loop-back.