n3mmr

PC performace required for QA401 controller
« on: January 01, 2019, 05:28:47 AM »
I'm in the process of deciding if I want to get a QA401 audio analyzer.
It depends a lot on what PC is required: I much prefer a fanless PC at all times.

Could a Minix Z83-4 fanless media player style pc manage?


squarewave

Re: PC performace required for QA401 controller
« Reply #1 on: January 01, 2019, 12:40:33 PM »
On my new-ish business class dell laptop CPU goes to 7% when my QA400 (the older unbalanced model) is capturing. But if I switch from 24/48ksps to 24/192ksps and increase the FFT window size to 65535, CPU goes to 20%.

My guess is yes it would work fine.

abbey road d enfer

Re: PC performace required for QA401 controller
« Reply #2 on: January 02, 2019, 07:52:17 AM »
I'm in the process of deciding if I want to get a QA401 audio analyzer.
I think you should read this thread
https://groupdiy.com/index.php?topic=62070.0
Hint: ignore the stupid exchanges between arnyk and me, there is not much to learn there, except about human vanity.

Quote
It depends a lot on what PC is required: I much prefer a fanless PC at all times.
When I used my 401, it was with a pedestrian notebook; I don't think it ever was a hindrance.
Who's right or wrong is irrelevant. What matters is what's right or wrong.
"The important thing is not to convince, but to give pause for thought." (B. Werber)
Star ground is for electricians.

n3mmr

Re: PC performace required for QA401 controller
« Reply #3 on: January 03, 2019, 05:01:56 AM »
I got an answer to a direct email question from Matt at QuantAsylum yesterday, and he thinks a Minix Z83-4 would do nicely, as would almost any PC with a few cores and 4G or more memory.
And this agrees, come to think if it, with my experience of Reaper with a dozen active plugins on an even tinier PC.
I never connected, but Reaper has plugins that run several fft processes in parallell and in real time at that. And I never had a problem with a Bay Trail cpu at 1 G and 4G memory.


 

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