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47e4dd1ec4
This adds Andre Adrian's AEC implementation from his intercom project (http://andreadrian.de/intercom/) as an alternative to the speex echo cancellation routines. Since the implementation was in C++ and not in the form of a library, I have converted the code to C and made a local copy of the implementation. The implementation actually works on floating point data, so we can tweak it to work with both integer and floating point samples (currently we just use S16LE).
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851 B
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17 lines
851 B
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Copyright (C) DFS Deutsche Flugsicherung (2004). All Rights Reserved.
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You are allowed to use this source code in any open source or closed
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source software you want. You are allowed to use the algorithms for a
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hardware solution. You are allowed to modify the source code.
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You are not allowed to remove the name of the author from this memo or
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from the source code files. You are not allowed to monopolize the
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source code or the algorithms behind the source code as your
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intellectual property. This source code is free of royalty and comes
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with no warranty.
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--- The following does not apply to the PulseAudio module ---
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Please see g711/gen-lic.txt for the ITU-T G.711 codec copyright.
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Please see gsm/gen-lic.txt for the ITU-T GSM codec copyright.
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Please see ilbc/COPYRIGHT and ilbc/NOTICE for the IETF iLBC codec
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copyright.
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