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freeswitch/libs/freetdm
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Stefan Knoblich 5367b96153 ftmod_isdn: Rework teletone buffer offset handling in isdn_tones_run(). 
Store the offset in the teletone buffer in the b-channel private data.

An NT-mode setup with ftmod_misdn showed severe (dial-)tone distortions
in a sound editor (330Hz sine wave phase errors), caused by
using a global teletone buffer offset.

Switching to a per-channel offset, that is advanced by the amount
of data actually written to the channel, removes (almost) all
distortions.

There is still a minimal phase error every ~500ms (audible) that
needs more investigating.

Signed-off-by: Stefan Knoblich <stkn@openisdn.net>
2012-07-26 01:21:47 +02:00
..
build
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conf
freetdm - ISDN added Q.931 timers
2012-01-03 14:11:47 -05:00
docs
freetdm: added documentation regarding ftdm open known issues
2011-08-27 00:19:09 -04:00
mod_freetdm
FreeTDM: Move custom backtrace code into ftdm_backtrace_walk() and helper functions.
2012-07-11 17:25:58 +02:00
msvc
Merge remote branch 'smgfs/master'
2011-03-06 22:11:39 -05:00
sample
freetdm: remove remaining references to boost (sample code, visual studio project references)
2011-02-24 19:26:40 -05:00
src
ftmod_isdn: Rework teletone buffer offset handling in isdn_tones_run().
2012-07-26 01:21:47 +02:00
.gitignore
JANITOR-10 - Thanks Peter
2011-03-17 08:34:00 -05:00
.update
commenting this out completely until a better solution is implemented. also FYI you should be refreshing .update on each commit that changes the lib or any of its mods to force a rebuild from the top level
2012-02-03 15:23:46 -06:00
acinclude.m4
FreeTDM: Add ax_compiler_vendor.m4 to acinclude.m4
2011-11-01 15:37:51 +01:00
AUTHORS
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bootstrap
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ChangeLog
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CMakeLists.txt
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configure.ac
FreeTDM: Add ftmod_analog(_em) and ftmod_zt to summary screen (always built).
2012-07-19 20:42:17 +02:00
configure.gnu
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cyginstall.sh
freetdm: add WIN32_LEAN_AND_MEAN fix
2011-01-27 17:27:50 -05:00
freetdm.2008.sln
freetdm: remove remaining references to boost (sample code, visual studio project references)
2011-02-24 19:26:40 -05:00
freetdm.2010.sln
freetdm: remove remaining references to boost (sample code, visual studio project references)
2011-02-24 19:26:40 -05:00
freetdm.pc.in
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Makefile.am
ftmod_skel: Add -shared libtool flag.
2012-07-19 20:42:17 +02:00
mkrelease.sh
freetdm: fixes to mkrelease.sh
2011-03-11 17:36:42 -05:00
NEWS
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ozrename.sh
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ozreplace.sh
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README
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TODO
freetdm: added threaded media to the TODO
2011-01-21 10:51:34 -05:00

README 

FreeTDM
http://wiki.freeswitch.org/wiki/FreeTDM