intercom-0.4.1

所属分类:通讯编程
开发工具:Visual C++
文件大小:256KB
下载次数:21
上传日期:2010-11-22 19:54:00
上 传 者david.yue
说明:  集g711、g723、gsm和ilpc于一体的通信系统源代码。
(Set g711, g723, gsm and ilpc in one of the communication system source code.)

文件列表:
intercom-0.4.1\aec.cpp (5273, 2005-09-25)
intercom-0.4.1\aec.h (9681, 2005-09-25)
intercom-0.4.1\aec_test.cpp (2020, 2005-09-25)
intercom-0.4.1\aec_test.txt (2117, 2005-09-25)
intercom-0.4.1\CHANGES (3413, 2005-09-25)
intercom-0.4.1\cirbuf.cpp (1170, 2005-01-23)
intercom-0.4.1\cirbuf.h (649, 2005-03-22)
intercom-0.4.1\COPYRIGHT (793, 2005-01-23)
intercom-0.4.1\g711\g711.c (11027, 2005-01-13)
intercom-0.4.1\g711\g711.h (1762, 2005-01-13)
intercom-0.4.1\g711\g711.rme (3625, 2005-01-13)
intercom-0.4.1\g711\g711demo.c (15631, 2005-01-13)
intercom-0.4.1\g711\gen-lic.txt (8184, 2005-01-22)
intercom-0.4.1\g711\Makefile (3512, 2005-01-13)
intercom-0.4.1\g711\makefile.cl (3401, 2005-01-13)
intercom-0.4.1\g711\makefile.djc (3406, 2005-01-13)
intercom-0.4.1\g711\makefile.tcc (3730, 2005-01-13)
intercom-0.4.1\g711\makefile.unx (3491, 2005-01-13)
intercom-0.4.1\g711\shiftbit.c (2615, 2005-01-13)
intercom-0.4.1\g711\ugstdemo.h (6553, 2005-01-13)
intercom-0.4.1\g726\cvt_h_b.c (9350, 2005-01-31)
intercom-0.4.1\g726\g726.c (81206, 2005-02-01)
intercom-0.4.1\g726\g726.h (5243, 2005-02-01)
intercom-0.4.1\g726\g726.rme (2212, 2005-01-21)
intercom-0.4.1\g726\g726demo.c (13808, 2005-01-31)
intercom-0.4.1\g726\g726_rfc3551.c (4625, 2005-02-02)
intercom-0.4.1\g726\g726_rfc3551.h (809, 2005-02-02)
intercom-0.4.1\g726\g726_test.sh (95, 2005-01-31)
intercom-0.4.1\g726\gen-lic.txt (8184, 2005-01-22)
intercom-0.4.1\g726\make-vms.com (13543, 2005-01-21)
intercom-0.4.1\g726\Makefile (538, 2005-02-01)
intercom-0.4.1\g726\makefile.cl (21198, 2005-01-21)
intercom-0.4.1\g726\makefile.djc (21024, 2005-01-21)
intercom-0.4.1\g726\makefile.tcc (21121, 2005-01-21)
intercom-0.4.1\g726\makefile.unx (21239, 2005-01-31)
intercom-0.4.1\g726\ts-crcs (5108, 2005-01-21)
intercom-0.4.1\g726\vbr-g726.c (19387, 2005-02-01)
intercom-0.4.1\gsm\add.c (5891, 2005-01-22)
intercom-0.4.1\gsm\add_test.c (5807, 2005-01-22)
... ...

README version 22jun2005 Welcome to intercom, a Voice over IP speaker-phone conference application. The application can: - dial a intercom partner via short-dial buttons - make a RTP connection to transport your voice over IPv4 - make a telephone conference - support wideband codec (16kHz sample frequency) Intercom is still very limited. But the things it can do, it does very well! Modify file ~/.intercom.conf for your short-dial labels and your IP-addresses. To start the application enter intercom Read shell script /usr/local/bin/intercom to get an idea of what is going on. For better echo cancellation start intercom with the -m or -l option. For a first test talk to yourself by clicking the button for your own IP-address, e.g. EDDF TEC2 if your computer is 192.168.1.2. The button should become green. Attention: A short click (less then 300ms) toggles on/off, a long click works as push-to-talk. ATTENTION: The intercom application needs PCM out for playback. This hardware device is used also by other sound programs like MP3 players (e.g. xmms) or WAV record/playback programs like sweep and audacity. The intercom application blocks (freezes) as long as another program uses PCM out. There are ways around this like using sound daemons aRTs or esound. But this is outside of the intercom application. If you dial another intercom station, you get an one-way connection from your microphone to the loudspeaker of your intercom partner. If your partner clicks on the correct button (the magenta one), both of you have a two-way communication. Now you or your partner can dial more intercom stations to make a conference with maximum 6 stations. Note: Start intercom with the -t option to get "everybody can talk and listen with everybody else". Read the file http://home.arcor.de/andreadrian/intercom/draft-conference-01.txt for more information. Supported royalty free Codecs: For License see ITU-T G.191 or IETF RFC3951 Narrowband (8kHz sample frequency): ----------------------------------- IETF iLBC 15.2kBit/s Global IP Sound iLBC Public License ITU-T G.711 A-law ***kBit/s ITU-T SOFTWARE TOOLS' GENERAL PUBLIC LICENSE ITU-T G.711 u-law ***kBit/s ITU-T SOFTWARE TOOLS' GENERAL PUBLIC LICENSE ITU-T G.726 32kbs 32kBit/s ITU-T SOFTWARE TOOLS' GENERAL PUBLIC LICENSE 3GPP GSM 13.2kBit/s ITU-T SOFTWARE TOOLS' GENERAL PUBLIC LICENSE Wideband (16kHz sample frequency): ---------------------------------- Speex 27.8kBit/s Xiph.org license (BSD license variant) Author: Andre Adrian E-Mail: Andre dot Adrian at dfs dot de Postal: DFS Tower Frankfurt Mr. Andre Adrian Flughafen Gebaeude 501 60549 Frankfurt, Germany

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