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  1. spandsp 0.0.6 - A DSP library for telephony
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  2. -------------------------------------------
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  3. 

  4. SpanDSP is a library of DSP functions for telephony, in the 8000 sample per
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  5. second world of E1s, T1s, and higher order PCM channels. It contains low level
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  6. functions, such as basic filters. It also contains higher level functions, such
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  7. as cadenced supervisory tone detection, and a complete software FAX machine.
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  8. The software has been designed to avoid intellectual property issues, using
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  9. mature techniques where all relevant patents have expired. See the file
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  10. DueDiligence for important information about these intellectual property issues.
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  11. 

  12. The library is licenced under the LGPL 2.1 licence. The test suite, and some support
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  13. programs are licenced under the GPL 2 licence. The full text of these licences can
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  14. be found in the file COPYING.
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  15. 

  16. Dependencies
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  17. ------------
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  18. 

  19. spandsp depends on various other packages for various tasks. Most of these
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  20. dependencies relate to building the test suite.
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  21. 

  22. libtiff (and libtiff-devel on most Linux distributions) is required to
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  23. build the spandsp library.
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  25. libaudiofile (and libaudiofile-devel) is required to build the test suite
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  26. fftw (and fftw-devel) is required to build the test suite. Version 2 or 3 of
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  27. FFTW may be used. Spandsp adapts to the differences between them.
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  28. 

  29. fltk (and fltk-devel), Fl_Cartesian and Fl_Audio_Meter are required to build
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  30. the test suite with GUI interfaces for some of the tests. The tests will build
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  31. without these packages, but the GUI features will not be available.
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  32. Fl_Cartesian and Fl_Audio_Meter can be downloaded from
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  33. http://www.soft-switch.org/downloads.
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  34. 

  35. Steve Underwood <steveu@coppice.org>
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