Did some testing on crop_rec yesterday and found out I haven't got audio with it.
Further testing revealed that I also get no audio when crop_rec is not used

I get 2Kb wav files with mlv_lite...
Downloaded the newest experimental build from downloadpspage, still no audio...but audio meters are working while recording.
Took mlv_lite and MLV_snd module from the 20June crop_rec_4K_build and now I have working audio files with my raw recordings.
Is there something wrong with audio in the newer crop_rec_4K builds from the experiments page ?Looking back through my files, looks like I got audio on 10th of juli and didn't have audio from 11 Juli until now.
I probably switched to a newer crop_rec_4K build on the 10th of juli, I always use the one on the experiments download page.
Looking at the mlv.txt files from mlv_dump, something went wrong in the crop_rec_4K build made on 3th of Juli and still ongoing.