UniMRCP 1.1.0 has been released and can be downloaded from the following location:

•     Source Distribution

•     Dependencies (based on APR-1.4.6, APR-Util-1.5.1, Sofia-SIP-1.12.11)

http://unimrcp.googlecode.com/files/unimrcp-deps-1.1.3.tar.gz
http://unimrcp.googlecode.com/files/unimrcp-deps-1.1.3.zip

•     Windows Installer (32 and 64-bit)

•     Windows SDK Installer (32 and 64-bit)

This release includes the changes which have been available in the trunk for a long period of time. The major additions have been:

• Support for Speaker Verification and Identification resource.
• Support for Nuance Resource Manager (SIP redirection with 300 Multiple Choices).
• Support for Visual Studio 2010.
• Enhancements in the RTP jitter buffer.

There have been numerous other issues fixed. See below for a more complete change-log.

• Added missing recognizer header fields used for voice enrollment (speaker-dependent recognition).
• Added support for custom MRCP header fields.
• Added init.d script. The script was originally submitted by pdeschen. Thanks.
• The function apt_log_file_open() makes a copy of dir_pass and file_name variables passed from a user application.
• Set the default profile name in umcscenarios.xml to "uni2".
• In the PocketSphinx plugin, instead of using one common timeout for detection of speech activity and inactivity, use two different timeouts: one for activity and the other for inactivity detection.
• In the recognition results sent from the PocketSphinx plugin, set both <instance> and <input> elements.
• Added support for SIP redirection with 300 Multiple Choices used by the Nuance Resource Manager.
• Added support for feature-tags set in the SIP Accept-Contact header field in an outgoing SIP INVITE message sent to the Nuance Resource Manager.
• Use strcasecmp() instead of apr_strnatcasecmp() to match RTSP resource names (Issue-94).
• Added support for speaker verification and identification resource.
• Fixed a race condition in the PocketSphinx plugin which caused the server to crash.
• Added sample 8kHz and 16 kHz voiceprints in the data directory which are used by the umc application for a sample verification scenario.
• Added a new accessor function to the client API to get an audio stream associated with the specified channel. The function name is mrcp_application_audio_stream_get().
• Added missing recognizer methods used for voice enrollment and interpretation.
• Updated the state machine of the recognizer resource to take into consideration requests, responses and events used for interpretation.
• Fixed the use of recognition timer in the PocketSphinx plugin.
• Applied a patch to the apt_log routine which allows the log file to be appended instead of being overwritten. The patch was submitted by Dani. Thanks.
• Added a new parameter to the function apt_log_file_open() which specifies whether the log file should be appended or overwritten.
• Set an MRCP version specific completion cause in the PocketSphinx plugin.
• Tweaked DTMF detector's energy thresholds to eliminate false positives during in-band (from audio) DTMF detection. Thanks Vali.
• Added the ability to retrieve an external object associated with the MRCP session through the log handler (apt_log_ext_handler_f).
• Fixed the formatting of float values in the header fields. Applied a patch submitted by Randy (Issue-108). Thanks.
• Fixed an interoperability issue with AVP. The mid attribute is not required when the SDP contains only one m-line.
• Fixed the processing of a response to the SIP OPTIONS request used for resource discovery (Issue-112).
• Added mandatory attributes for the SSML <speak> element in the sample speak.xml file.
• Took into consideration the RTP marker in order to re-sync the jitter buffer on a new talkspurt. Audio data loss could be experienced in the RTP receiver in case of consecutive SPEAK (for client) or RECOGNIZE (for server) requests.
• Modified the "prepare" utility project to use the new location of PthreadVC2.dll which is now built from source with other dependencies.
• Fixed the build of C++ MRCP plugins for platforms other than Win32. Thanks Vali.
• Instead of discarding a non-aligned RTP packet, adjust the timestamp and write available frames to the jitter buffer (Issue-122).
• Fixed a crash in the RTSP client stack when the server closes a TCP connection while the associated RTSP session is being destroyed (Issue-124).
• Fixed the processing of RTSP TEARDOWN requests being timed out. Applied a patch submitted to Issue-125 by Chris. Thanks.
• Took out unused tags (variables) to compile with Sofia-SIP 1.12.11.
• Added support for Visual Studio 2010.
• Fixed apt_log_output_mode_check() which returned TRUE if any mode was enabled or checked regardless their correspondence. Thanks Vali.
• Added a new constructor function unimrcp_client_create2() which allows to pass the client XML configuration not by a file, but rather by a string parameter. Thanks Vali.
• Added the ability to take and use parameters set by the plugin in a response to the GET-PARAMS request. Thanks Vali.
• Fixed the processing of more than one pending application requests upon reception of a SIP BYE message from the server.
• Enhanced the debug output by adding task message identifier to the log statements "Signal Message" and "Process Message".
• Fixed a potential crash related to the use of pollsets.
• Added support for Sofia-SIP's TPTAG_LOG() and TPTAG_DUMP() tags which can be enabled from the client and server configuration to print out and/or dump SIP messages.
• Fixed the loading of the client configuration parameter <offer-new-connection>.
• Added support for the adaptive jitter buffer. Applied a reworked patch submitted by Erik. Thanks.
• Enhanced the detection of a new RTP talkspurt by implicitly setting the RTP marker if a gap between two RTP packets is more than the specified threshold (INTER_TALSKPUSRT_GAP = 1000 msec).
• Allow the initial playout delay in the jitter buffer to be set to 0.
• Implemented a time skew detection algorithm for RTP streams. The detection can be enabled and used for both the adaptive and static jitter buffer.
• Added support for redirection of RTP traces (RTP_TRACE, JB_TRACE) to the debug output window of Visual Studio.
• Modified the MPF test application to read a raw PCM data from one file, transmit it over RTP, and write the data back to another file.
• Enhanced helper functions which operate on the MRCP header to properly set, get and inherit header fields (Issue-110).
• Set the libtool parameters link_all_deplibs and link_all_deplibs_CXX to "yes" by default, with an option to disable them (--disable-interlib-deps), if ever needed. This fixes a link error on recent Debian/Ubuntu distributions.
• Enhanced the processing of the RTP named events.
• Enhanced the UniMRCP Windows service manager. Thanks Vali.
• Added support for a binary recognition grammar used in RecogScenario by the sample umc application. Thanks Vali.
• Fixed a potential buffer overflow in apt_text_pair_array_insert(). Thanks Vali.
• Modified the apr.m4 and apu.m4 macros to use '--link-ld' instead of '--link-libtool --libs' for the APR library dependencies. This addresses the problem with a wrong -L path to the expat library.
• Set prerequisite version for autoconf to 2.59.
• Added a checking for pkg-config to the configure script.
• For logging purposes, pass a string identifier of the RTSP/MRCPv1 signaling agent to the RTSP client and server stacks.
• Remove a socket descriptor from the pollset only if the descriptor has been properly added to the pollset. Otherwise, this operation could cause a crash.
• Respond to client user application requests with failure if a new session couldn't be created due to an error in initialization of the SIP stack (Issue-127).
• Added a sample SRGS ABNF grammar to the data directory.
• When originating an offer from the client, take into account capabilities of an audio stream created by the client user application.
• Added a new function to the client API to retrieve a SIP/RTSP response code received from the server (Issue-90). The support is incomplete.
• Added a new option (-v or --version) to the unimrcpserver as well as the sample umc and unimrcpclient applications.
• Corrected FileType in Windows resources from DLL to APP. Thanks Vali.
• Added a Windows resource file for the unimrcpservice application.

The client application and plugin integration interfaces retain backward compatibility. Everybody is encouraged to upgrade.

Thanks for using UniMRCP.

--
Arsen Chaloyan
Author of UniMRCP
http://www.unimrcp.org