Sound interface

[Jaty22]

Hello,

I am measuring acoustic signals from a bubbling liquid. Can I use sound interfaces like PreSonus Studio 1824 (typically used in the music industry)?

Is there a significant difference between this hardware and NI Modules (like NI9234) in terms of performance: durability, flexibility, quality, and accuracy of the signal?

Thank you

Jaefer

[santo_13]

What range of frequencies and amplitudes are you thinking about?

I am not familiar with the PreSonus Studio 1824, but I would guess that those were tweaked for human hearing range performance and not scientific/instrument grade equipment, no traceable calibration data etc.,

Whereas the Sound and Vibration series cards are instrument grade devices with traceable calibration data. I will not be surprised if the NI Sound and Vibration cards used to test and tweak the performance of PreSonus Studio 1824.

[Henrik_Volkers]

If you alrady have that sound interface you can use the native (quite restricted) LabVIEW sound vis

However there is no real driver with all the nice features like trigger , configure ranges, etc

I used LabVIEW and my sound card (native build in and USB via Win OS) to capture sound (measure power line frequency, receive SAQ, ...) at home ...

Others say good things about https://www.zeitnitz.eu/waveio?mid=10

More sophisticated sound inferfaces often use ASIO ..  don't expect LabVIEW to do native ASIO support, you get what the OS thinks is the sound out and input.

Do do real measurement with LabVIEW, I also would look for NI-Card with native Mic support (no need for preamp, unless you already have it) .. GRAS and PCB ( and others, but these are the ones I know) have IEPE powered mics.

Have a look at the Sound and Vibration vis ...