Fuh
2008-06-17 21:40:11 UTC
Dear Labview experts:
I am currently using Labview 8.0 and a multifunction DAQCard 6062E. I am an EEG (electroencephalogram) person and I need to generate sounds and record EEG data. My question in Labview programming is: when I send out the first data point of sounds through an AO channel, I need to send out a trigger (preferrably through digital output lines) to the recording system, so that the recording system knows exactly (or as close as possible) at what data point (of the recorded data points) that the sound was sent out through the AO channel. I have written three VIs. One to generate sounds through an AO channel, one to generate triggers through a digital port (consists of 4 digital output lines), and another one to record EEG data. The three VIs work fine separately, but what shall I do in order to synchronize the AO channel and the digital output port?
Any comments or inputs would be very much appreciated.
Sincerely,
Fuh
I am currently using Labview 8.0 and a multifunction DAQCard 6062E. I am an EEG (electroencephalogram) person and I need to generate sounds and record EEG data. My question in Labview programming is: when I send out the first data point of sounds through an AO channel, I need to send out a trigger (preferrably through digital output lines) to the recording system, so that the recording system knows exactly (or as close as possible) at what data point (of the recorded data points) that the sound was sent out through the AO channel. I have written three VIs. One to generate sounds through an AO channel, one to generate triggers through a digital port (consists of 4 digital output lines), and another one to record EEG data. The three VIs work fine separately, but what shall I do in order to synchronize the AO channel and the digital output port?
Any comments or inputs would be very much appreciated.
Sincerely,
Fuh