I want to use the *.ogg files available in Satnogs' database to test demodulation software for several satellites (using gnuradio).
Can I use the ogg file source (available in gr-satnogs module) and transform its output to complex data and then do the signal processing as if I were using raw IQ data coming from an SDR? And in this case, what sample rate is suitable in the throttle block ?
Or, if not possible, should I convert the *.ogg file first to a *.raw file, using sox for example (Sound eXchange program) and then use it in GNU Radio? In this case, what are the parameters (input file sample rate, output file sample rate, encoding, sample size in bits, etc ...) i must use ?