LabVIEW
question about sound signal processing and saving
I was programming a sound signal processing system based on the sound card in pc. The block diagram was on appendix and it included sound signal acquisition, FFT transformation, and filter parts. Was it correct? And how to save the sound signal acquired to pc? Could you do me a favor, thanks for your time.
mikeporter 已写：
The code that there seems ok. There are a variety of tools available for saving the data, but first - which data? Everything? just the raw data? just the final results? When do you want to save the data? with every iteration? at the end of the loop?
How long will the loop run for?
Mike...
I am sorry about that I did not make my question clearly. The goal is to save the raw data from starting this VI to clicking the "stop" button to stop the VI. How could I achieve this goal? 
mikeporter 已写：
What format do you want the data stored in? What are you going to do with the data?
At the very least you can store in TDMS or ASCII format. There are examples that ship with LV showing both.
Mike...
Well, I just want to save the sound signal which was acquired from sound card into a wav file.
I made a VI (pic 1) but it did not work. The error showed in pic 2, and when I was highlighting it , the error showed in pic 3.
Hi holidayaa,
The real problem is the your Sound Input Configure .vi is not returning proper task ID and again depends on proper device ID you wire to it.
Please check the device ID of your card in the device manager and try again.
Regards,
SrikrishnaNF
