02-08-2023 06:03 PM - edited 02-08-2023 06:05 PM
Hi! I'm trying to record a 24 hour sample on a single USB microphone w/ 192kHZ/24bit sampling rate, connected to NI PCIe-6353 with BNC adapter. The sound I'm trying to capture has a frequency of 13kHz. How fast of a sampling rate do I need to use on the NI PCIe-6353 in order to get a read out for amplitude of the sound at a frequency of 13kHz? Thanks!
02-08-2023 11:37 PM
Actually, things don't make sense. You mention a USB microphone (digital) which was already sampled into digital (192kHz 24bit), then why connect to a 6353 over BNC (typically analog)?
Please provide more details about the microphone you're trying to collect data from.
BTW, 6353 is not best suited for audio capture applications, the DSA series of instruments such as USB-44xx are best suited for sound and vibration.
02-08-2023 11:42 PM
Hi Santhosh. The microphone is connected to the 6353 so we can analyze the recordings in MATLAB in alignment with another acquisition that records certain "brain activity" of mice. The "brain activity" is connected to the 6353, and connecting the microphone to 6353 would allow us to exactly align the recording and brain activity from a time standpoint on MATLAB.