A collection of programs that can encode JPEG images into WAV files using various popular SSTV encodings.
To use these programs you'll need libsndfile, libjpeg and libfftw3
(only for bw). You may need to modify Makefile to point to these
libraries if they are installed in unusual locations.
bwinput.wavmartininput.jpg output.wavpd180input.jpg output.wavrobot36input.jpg output.wavrobot72input.jpg output.wavscottyinput.jpg output.wav
All the programs except for bw write out 11025 samples/second WAV files.
They all include a header and trailer of 0.5 seconds of silence.
The bw file program reads in a wav file, and uses the fftw3 library to
compute the power spectrum of the signal, and writes a series of
frequency/power pairs out to standard out. If you feed those into
a program like gnuplot, you can create plots like this (the power is plotted
with a logarithmic scale here).
