LabVIEW and RTL-SDR interface

I’ve made an interface between the popular RTL-SDR compatible hardware and NI LabVIEW. It’s not complete, but just got it working. It’s a set of SubVIs that can be used to connect to an rtl_tcp server. I’ve also implemented a WFM demodulator, so I could listen to some FM broadcast in LabVIEW.

During the development, the biggest problem was getting usable sound output - it’s really hard to get continous playback with the sound VIs that LabVIEW has, there are issues with the buffering.

UPDATE: Download the whole project here.

The source of this post is my previous blog at HA5KFU.