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• A set of DSP Radio Library functions implemented on the ADSP-21xxx SHARC 32-bit floating point DSP, which performs DSP demodulation on baseband IQ components and FIR Filtering operations on audio and speech signals.  The filtering is aimed at filtering the demodulated audio (e.g. from short-wave receivers) to improve the clarity of reception.  Different filtering modes are aimed at Speech (Single Side Band, SSB, NBFM), Music (Amplitude Modulation, AM), Morse Code (Continuous Wave, CW) and Data (AM). The 32-bit floating-point DSP allows filtering with a -100 dB minimum stopband, a figure unobtainable from 16-bit fixed-point DSPs.
   
• The DSP Radio Library is supplied with documentation and DSP example code.  The full DSP source code is available.

SHARC DSP Radio Library Description