cannot create files outside of havoc firmware and replay them with portapack

[jfender1]

I am unable to create files in gnu radio and have them play in the portapack. I would like to be able to use filters to quite down the signal to get a very clean and precise signal and have the portapack replay them. It seems that if I just change the file extension to c16 it will show up but it doesnt seem to play correctly or the graphics look very weird. How do I look at the c16 captures? I would like to see how clean the signal is being recorded by the portapack.

[furrtek]

Have you seen this ? https://github.com/furrtek/portapack-havoc/wiki/Capture

[rightrozz]

Using csdr or audacity to convert to complex signed 16 bit audio won't correctly play on the hackrf for me. Has anyone got a successful method on converting files to C16 format?

[jamesshao8]

I have similar problem as you, I modified replay in portapack to send a data file (2MHz 8 bit), which I can send in gnuradio using ichar to complex. However there is still problem.

[cosmo6110]

I using audacity to edit c16 files
import raw : signed 16 bit pcm, little-endian, 1 channel, sample 44100
to save i use ffmpeg function.
export audio, open ffmpeg, format s16le codec pcm_s16le export ffmpeg save