2014-11-30 06:03:17 +01:00
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spandsp - A DSP library for telephony
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2013-12-20 15:12:23 +01:00
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SpanDSP is a library of DSP functions for telephony, in the 8000 sample per
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2014-11-30 06:03:17 +01:00
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second world of E1s, T1s, and higher order PCM channels. It contains low level
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functions, such as basic filters. It also contains higher level functions, such
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as cadenced supervisory tone detection, and a complete software FAX machine.
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2013-12-20 15:12:23 +01:00
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The software has been designed to avoid intellectual property issues, using
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mature techniques where all relevant patents have expired. See the file
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2014-11-30 06:03:17 +01:00
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DueDiligence for important information about these intellectual property issues.
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2013-12-20 15:12:23 +01:00
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2014-11-30 06:03:17 +01:00
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The library is licenced under the LGPL 2.1 licence. The test suite, and some support
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programs are licenced under the GPL 2 licence. The full text of these licences can
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be found in the file COPYING.
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