sdr (hackage): Write software defined radio applications in Haskell.  Features:  Signal processing blocks can be chained together using the Pipes library  Zero copy design  Signal processing functions are implemented in both Haskell and C (with SIMD acceleration)  Can FIR filter, decimate and resample  Helper functions for FIR filter design using window functions and plotting of the frequency response  FFTs using FFTW  Line and waterfall plots using OpenGL  FM demodulation  PulseAudio sound sink  rtl-sdr and BladeRF based radio sources/sinks supported and other sources are easily added  See https://github.com/adamwalker/sdr for more features and screenshots.  A collection of simple apps that use this library can be found here. These include an FM radio receiver, an OpenGL waterfall plotter and an AM radio receiver.
Keywords: bsd3|software-defined-radio|dsp|haskell|sdr