Hi,
I am trying to generate 8 different sound waves to 8 loudspeakers from the attached VI. These loudspeakers are located around an annular tube. What I am trying to do is, add a phase lag to each loudspeaker and try to spin the soundwaves. So, I send a sine wave to the first loudspeaker. Then I add a phase lag to the sine wave of the second loudspeaker and keep increasing this phase lag for subsequent loudspeakers. Hence, I'll need 8 different signals.
However, my problem is, I only have 4 AO channels on my DAQ device (PCI 6229) therefore I can't generate 8 different signals. I could split these 4 signals using the hardware and also invert them, but I don't know how I could generate the waves such that they have a phase lag I need. Is there any way to do this?
Thanks.