https://github.com/juha-h/spandsp

https://github.com/juha-h/spandsp

Last synced: 23 days ago
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• Host: GitHub
• URL: https://github.com/juha-h/spandsp
• Owner: juha-h
• License: other
• Created: 2019-09-26T08:47:19.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2023-10-21T12:14:14.000Z (about 1 year ago)
• Last Synced: 2023-10-21T13:23:36.910Z (about 1 year ago)
• Language: C
• Size: 2.66 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • Changelog: ChangeLog
  • License: COPYING

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README

        
spandsp 0.0.5 - A DSP library for telephony

-------------------------------------------

SpanDSP is a library of DSP functions for telephony, in the 8000 sample per

second world of E1s, T1s, and higher order PCM channels. It contains low level

functions, such as basic filters. It also contains higher level functions, such

as cadenced supervisory tone detection, and a complete software FAX machine.

The software has been designed to avoid intellectual property issues, using

mature techniques where all relevant patents have expired. See the file

DueDiligence for important information about these intellectual property issues.

The library is licenced under the LGPL 2.1 licence. The test suite, and some support

programs are licenced under the GPL 2 licence. The full text of these licences can

be found in the file COPYING.

Dependencies

------------

spandsp depends on various other packages for various tasks. Most of these

dependencies relate to building the test suite.

libtiff (and libtiff-devel on most Linux distributions) is required to

build the spandsp library.

libaudiofile (and libaudiofile-devel) is required to build the test suite

fftw (and fftw-devel) is required to build the test suite. Version 2 or 3 of

FFTW may be used. Spandsp adapts to the differences between them.

fltk (and fltk-devel), Fl_Cartesian and Fl_Audio_Meter are required to build

the test suite with GUI interfaces for some of the tests. The tests will build

without these packages, but the GUI features will not be available.

Fl_Cartesian and Fl_Audio_Meter can be downloaded from

http://www.soft-switch.org/downloads.

Steve Underwood