I am using “SI read.vi” to measure the frequency and the amplitude of a sinus wave from frequency generator. The frequency measured by the sound card is four times small then the frequency from the generator. The configuration of “SI read.vi” is 16 bit mono, 44100 samples and the buffer size is 8192.
you need to supply any kind of timing information to the VIs doing frequency analysis, e.g. dt = 1/44100 s, otherwise these VIs assume dT = 1 s. Use the waveform datatype for time - related signals.
best regards chris
Best regards chris
CL(A)Dly bending G-Force with LabVIEW
famous last words: "oh my god, it is full of stars!"