I have collected a bunch of old Raspberry Pi model B’s equipped with the Wolfson audio board. You may find these board lying around and collecting dust, as they have been obsoleted by an increasing number of multi-core boards. I will use these boards as simple Softrock SDR receivers, but first I want to do a little experiment. I am going try using them as a headless FreeDV modem similar to the SM1000.
freedv
Is open source digital voice about to explode?
Digital voice is exploding! That’s the title of HamRadioNow episode 193 where Gary KN4AQ interviews David Rowe VK5DGR, creator of Codec2 and co-author of FreeDV.