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Not enough memory issue while acquiring data

Hi all,

 

I am trying to acquire audio data @ 50KS/s for 20 sec. using the PXI 4498 card in the PXI system. To acquire data I am using the DAQmx functions.

 

Step1 : Created DAQmx channel

Step2: Set the no. of sample to read as 20X50=1000000 to the DAQmx Timing function

Step3: DAQmx Read funtion to read the data. (Set the timeout as 20x2=40Seconds)

 

PLease find the attached screen shot of the block diagram.

 

Issue is sometimes I am facing the memory issue when I run this VI. Popup saying that "Not enough memory to complete this Operation"  is getting popup and the Vi getting stop abruptly. Kinldy look into the screen shot and suggest me the apprapriate method to read the data at mentioned acquisition rate.

 

Note: The problem is not consistent. Sometimes I am facing the error and sometimes not.

 

Thanks in advance

Giridhar

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