FreeDV

FreeDV 1.0

Free
FreeDV allows any SSB radio to be used for low bit rate digital voice.
 
1.0 (See all)
David Witten, David Rowe

Old versions

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FreeDV is a GUI application for Mac that allows any SSB radio to be used for low bit rate digital voice. Speech is compressed down to 1600 bits then modulated onto a 1.25 kHz wide 16QPSK signal which is sent to the Mic input of a SSB radio. On receive, the signal is received by the SSB radio, then demodulated and decoded by FreeDV.

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