FreeDV modulator

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Note: Not all modes may be supported by the underlying codec2 library.

Parameters[edit]

(R): Run-time adjustable

Operating Mode
options: ['1600', '700', 700B, 2400A, 2400B, 800XA, 700C, 700D]
Text Message
default: GNU Radio
Interleave Frames
interleave_frames is an integer between 1 and 32, and is only used in the 700D mode. (must be set the same on both transmitter and receiver)
Clip
Clip reduces the Peak/Average Power Ratio from 12dB to 8dB by clipping. (default: False)
Tx BPF
enable a bandpass filter (default: True)

Example Flowgraph[edit]

This flowgraph can be found at [1]

Grfreedv fg.png

Source Files[edit]

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO