DiAna, a software Distortion Analyzer

[scott wurcer]

Or change to PortAudio.

IIRC Dave and I looked into that and Dave actually found in the docs that PortAudio does not support 24bits (Win?). That was a while ago has that changed?

 

[davada]

Scott it turns out what I was looking at was a third party ASIO lib with demo restrictions. I thought it was from Steinburg.. There is no limit.



ASIO is nothing more than a description of a COM interface. COM belongs to Microsoft. The magic is with the driver.


I don't see how Steinburg can put any restrictions on it at all if you write your own code. They have example code but one doesn't have to use it.


I found another third part lib which is free. It works very well. But then there is all the issues that Edmond has run into.

 

[scott wurcer]

Scott it turns out what I was looking at was a third party ASIO lib with demo restrictions. I thought it was from Steinburg.. There is no limit.

Thanks, it was a while ago. I don't have the energy these days to build things from source and get it all to work and I finally decommissioned my XP machines where everything actually worked.

 

[davada]

I stopped with what I was doing the moment Edmond made DiAna available. Seemed pointless to continue. Coding just sucks up too much time.

 

[generg]

Hi Edmond,

have a good 2019 and I must tell you ....
big thanks for your "Diana", the loveliest female distortion analyser ever seen....



Last days I had more time and I measured some amps

Aleph 3, my my beast F4 with IXYS pucks and some circuits with Tokins.
Besides the distortion pattern, it was a pleasure to see the phase of h2 as well.

I am so happy that your program works so well.

 

[Edmond Stuart]

Hi Gerd,

You too my best wishes for 2019
and thank you for your kinds words about DiAna,
How about your experience with her 'masculine' antagonist?
As for the new version, I'm still busy it, although in very slow motion.
Perhaps next month it might be ready, but at the moment, I'm suffering a kind of (software) writer's block.

Cheers,
E.

 

[davada]

Take a break.

 

[MEPER]

I tried to download the Diana zip file but my Kaspersky internet security software refuses…….it thinks it is harmful software (adware) and blocks the connection. I assume that it is ok and I just have to find out how to learn Mr. Kaspersky that everything is ok...…..

 

[Zung]

I tried to download the Diana zip file but my Kaspersky internet security software refuses…….it thinks it is harmful software (adware) and blocks the connection. I assume that it is ok and I just have to find out how to learn Mr. Kaspersky that everything is ok...…..

Remove it: it's more trouble (and $) than anything.
I've been running the free Windows Defender (Windows 8.x, 10), and Microsoft Security Essentials (Windows 7) before that, with ZERO issue so far.

 

[Edmond Stuart]

I tried to download the Diana zip file but my Kaspersky internet security software refuses…….it thinks it is harmful software (adware) and blocks the connection. I assume that it is ok and I just have to find out how to learn Mr. Kaspersky that everything is ok...…..

Hi,
It's a false positive indeed. But to convince yourself it's absolutely unharmful, you might send the file for inspection to Kaspersky lab: https://support.kaspersky.com/us/general/products/12822

Cheers,
E.

 

[jan.didden]

Trivia: Dutch and German governments have forbidden use of Kasperski for official computers because it really is spyware

Jan

 

[MEPER]

I will download the file on another PC which only has standard Win anti virus software. I have used ARTA software but I like that Diana can show the phase between fundamental and distortions signal. Something they discuss a lot in the Pass Lab forum

 

[chris719]

DiAna probably has a bunch of Win32 calls that are now red flags for AV software. The AV manufacturers assume the worst and that most apps stopped using them years ago, but it's not always the case.

 

[1audio]

It seems DiAna is not currently available for download. I hope it returns soon.

 

[31697B]

How can I use my ADC from BenchMark with this? In place of a sound card?


THx-RNMarsh

 

[chris719]

It is a sound card. You just need to make sure you have the ASIO driver installed.

 

[Zung]

Once you have your ASIO set, you can pick any soundcard you have.

 

[jan.didden]

I am the proud owner of an AP SYS272. I would like to look in more detail into the waveform of the residual of the signal. The AP can give me that residual (supressed fundamental), how can I feed this into DiAna? I guess I have to use a sound card to get the signal into the PC.

Will DiAna complain if there is no fundamental, or can I insert a fundamental in the other channel of the soundcard and use that in some way?

Jan

 

[Zung]

Yes
It appears if the thing has nothing to lock on to, it's not happy.

PS.: I admit I don't own any expensive pieces of gear ( ), so I just leave the instrument input of my soundcard open to simulate some random stuff.

 

[DNi]

I am the proud owner of an AP SYS272. I would like to look in more detail into the waveform of the residual of the signal. The AP can give me that residual (supressed fundamental), how can I feed this into DiAna? I guess I have to use a sound card to get the signal into the PC.

Will DiAna complain if there is no fundamental, or can I insert a fundamental in the other channel of the soundcard and use that in some way?

Jan

I tried it two months ago with my setup that includes Samuel's notch filter and his LNA, synchronizing DiAna with a full voltage fundamental on the other sound card channel.
It worked, and then I entered the results for several runs into an Excel sheet for comparison. There was no consistency in the THD values obtained, so I decided to wait for the official version that would support this mode.

On the other hand, I may have made a mistake somewhere in the process, but I couldn't find any at the time.


Regards,
Braca