Hi
I'm streaming data to a binary file which I would then like to open for analysis on another machine. The data is being collected from a microphone. Now here is the problem. If I scale the data to dB before saving, and then open the file, the values come out correct. Similarly, if I save the values as pressure levels, these values are also correct when I open them. If I wire the pressure levels (having first built a waveform) into one of the sound and vibration toolkit, sound level VI's then I get results out with a massive zero offset (in the negative range) and the 'amplitude' of the level is incorrect - e.g. -50dB to -5dB when the input is 94dB.
Any ideas what I am doing wrong? Basically I want to save the values as pressures, and then during post processing, convert them to dB.
Cheers
Dave
