Sound card audio measurement

Hello,

I was wondering if there is a way to use an external usb sound card and microphone to record record sound in "Real measurment" mode, since I have an IOLITE module I will be using at the same time.

I would like to have both the pressure track (from a pressure transducer connected to the IOLITE) and the soundwave coming from the sound card recorded and available in measure mode. Since one can record video it seems trivial to be able to add the audio source.

Thanks in advance,

Francesco Miccoli

Dear Francesco,

thank you for reaching out to us. It is not possible to use external USB sound card and USB microphone to record the data because it is not possible to synchronize channels from the audio card to analog channels from our devices. You can use the sound card in the simulation mode.

If you would have a microphone with an analog output, you should be able to simply record it's data as an analog input (in IEPE mode) and then use that channel as an audio source in your data file. When you play back the file, you'll be able to hear the sound that you've recorded. I've attached a picture that shows you where to select the correct option.

Kind regards.

@Gregor Šmit

Thank you for the explanation,

would an IOLITE module be able to provide phantom power to a condenser microphone? If not, I see that one can record the audio in the settings (more like a log than a recording), how is this treated in the export phase? Thank you in advance,

Francesco

Dear Francesco, the IOLITE module might be used to power the condensed microphone. Please refer to our manual for power outputs which you can then compare to your microphone specifications. We also have two solutions for Current output from DO pin on different devices and Digital in/out connection on IOLITE-8xDI-4xDO.

When using the simulation to record the sound you can then export the sound to the Wave (*.wav) file.

Kind regards.