How to make Beep.VI run simultaneously?
Hello
I'm doing a basic data acquisition program, but I am running into a problem of synchronization. I have 4 microphones and speaker. The idea is to create a tone using Beep.vi, and then collect the 4 signals out of the pickups (which are spaced). The problem just the other side is that when I try to run the beep.vi as well as the acquisition of data, the program works the tone, and then collect the data. I want to be able to collect data when the sound plays.
Is there a way I can do this with semaphores/rendevouzs? Or is there a more complicated method involving VI references?
See you soon,.
Kevin
Sorry for taking so long to answer. Work got in the way.
in any case, I'd probably do something like this. Basically, I set up the DAQmx task, tell him to run and then call the beep. After the beep, stop the DAQmx task. I used an appearance (rare that I use, but it's perfect for this case) to tell the while loop with DAQmx Read to stop the beep when finished. What it does is that it guarantees that the DAQmx task runs until the beep. You can add small delays just to make sure that you have enough buffer before and after the beep goes.
Tags: NI Software
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