FreeDV using Codec2 a low bit rate HF codec
#19
Hi Dave,
I've now a RPi4B and have loaded HamVOIP for the RPi-2-3-4 only to discover it's 32bit.
The Codec2 library compiles but I'm yet to do anything with it. I have a stereo in and out
USB audio device, the Creative SoundBlaster Play 3! as these are available worldwide.
A stereo audio device should allow two separate paths for Rx and Tx for "smalldv".

The 2020 mode requires CPU hardware acceleration, for ARM this is "neon".
From the Intel i3 up (not Celeron) the AVX/AVX2 FPU extensions are 256bit.
This allows eight sixteen bit maths operations simultaneously.
"neon" is only 128bit.
88 (well we can drink in this lockdown)
Alan VK2ZIW
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