Hello,
There are a couple of different options for your
application. When deciding which DAQ
board to use, it will probably be based on the accuracy of the signal. A normal DAQ (M-Series) board will allow you
to output a sine wave or tone.
However, I would recommend the PCI-4461 which has two simultaneous
output channels with a 24 bit DAC at 204.8kS/s.
I am assuming because you are dealing with the human ear that you will probably
not go above 20kHz. This board will give
you better accuracy when creating your tone compared to a regular M-Series board. You might also consider the sound and vibration toolkit.
Once the output signal is created, you can send it to a
speaker. Depending on how load you want
the signal, you might consider an amplifier.
Message Edited by Robert F on 06-27-2007 01:53 PM
Respectfully,
Rob F
Test Engineer
Condition Measurements
National Instruments
