Well friend and I have been playing around with speech compression as the FT-857D on it own does not have the best DSP. As my friend is keeping a better log of it all and how to set up up on the Raspberry Pi head on over to VK2MEV’s site and check it out.
I have the speech compression running on my computer rather than the raspberry pi at the present moment for testing purposes, but will get around to setting it up on the raspberry pi at later date.
My setup consists of:
Creative Sound Blaster Play USB Dongle
Heil Pro Set Elite
Necessary cabling to connect between the data port on the FT-857D and the USB dongle and headset