DIY Audio Analyzer with AK5397/AK5394A and AK4490

[canvas]

The native driver has no problem to record. canvas might need to allow the 'microphone' (totally stupid new security setting in Win 10) to see input signals.

I checked the windows security section. The microphone is enabled. May I ask what application did you use for recording? By using standard audio interface,
Audacity, REW and Arta will not record.

 

[canvas]

You would look for the RTX and you may need to reinstall since Windows likes to think it has a native driver. You must replace that with the RTX driver. The native driver doesn't understand record.

Never thought about that. Isn't the RTX an UAC2 compliant device? I will try, thanks.

 

[chris719]

I'd be surprised if the native UAC2 driver in Windows doesn't record, but USB specs are always overcomplicated and so I am sure it could be incompatible with XMOS devices at the moment.

 

[1audio]

I have read elsewhere that the UAC 2 implementation by Microsoft doesn't support record. I had to reinstall the RTX driver after the 1803 upgrade for anything to work. All a PITA.

 

[chris719]

It seems like it should support it:

USB Audio 2.0 Drivers - Windows drivers | Microsoft Docs

I would not be shocked if it is broken or buggy though.

 

[canvas]

By taking Demian's suggestion, the latest driver is installed (so is the firmware). I can use my USB DAC as output device now! The frequency response measurement was done successfully. Thank you! However, here comes the new problem. The RTX's ouput won't work anymore, only the input. That means I won't be able to do loopback test with "Java" drivers. Very strange.

Poting

 

[1audio]

For reasons that do not make sense several restarts may be needed to get the driver to work right. I think its some "unhappy" cooperation between the native Windows driver and the RTX driver.

 

[canvas]

Yes, you're right. It somehow works again! Weird...

 

[modmix]

RTX6001 doesn't work with Digilent WaveForms

Digilent has a nice software for free: WaveForms.
WaveForms was originally made to work with Analog Discovery. Using a soundcard is also supported.
WaveForms works nicely with eg. Lynx L22.
While RTX6001 works fine with software like Arta, AudioTester, SpectraPlus, REW, it doesn't work with WaveForms.
Would be just great to have this option, too.
Any chance?
Ulli

 

[NicMac]

Worked fine on my Mac when I briefly tested it a while ago.

 

[modmix]

RTX6001 input is read by WaveForms (see attached picture; left: signal from an external function generator, right: from RTX6001 output while generator is running).
=> there is no signal generated by the generator... why?
Ulli

 

[lemon]

It isn't problem of RTX but it is problem of WaveForms.
What driver have you setup on WaveForms?
Do you tried the asio4all?

 

[modmix]

WaveForms seems to use a standard windows audio device.
See analog-discovery-digilent-post5640700.html

asio4all would be an option when an ASIO interface is addressed. Issues caused by Windows would most likely remain.

 

[ezalys]

Is there still some way to obtain one of these units given that the group buy is over?

 

[mbrennwa]

I think RTX is selling it as a regular product. I'd be interested in a second group buy though... I hate myself for not taking the opportunity to buy two of those in the group buy.

 

[Gluca]

Me too ... I missed it, just forgot to confirm the order .

 

[Pinebox Studio Servi]

+1 on group buy.

 

[diyralf]

I would wait for version 2.0

 

[NicMac]

I don't think there are plans for a new group buy as the instrument is now commercially available. What would Jens and RTX have to benefit from doing another run at production cost?
I find it more constructive to investigate what 'upgrades' can be done to the instruments as it is to understand its full potential (and limits). Only major findings in this direction would justify a new version, and possibly a second test run of instruments for the diyAudio community

 

[Pinebox Studio Servi]

What would Jens and RTX have to benefit from doing another run at production cost?

Lots of reasons really, one being to quickly move the remaining stock while accumulating funds for the production run of the next version. Another being to easily get more units out into hands of techs like myself who missed the initial group buy in hopes of becoming more competitive in the market. These are not very well known yet outside of this website, as I polled many studio techs local to Los Angeles for advise on audio analyzers and not one mentioned RTX. I found this through lots of research in hopes of one day building my own similar product before I stumbled upon this thread. However I can only find the group buy price, and judging by that I would be looking at a used Portable One or Neutrik A2 for around the same cost as MSRP, but much more recognizable brand.

TL;DR I can't afford full price, if a new group buy surfaces, or anyone wants to sell theirs, then YO!