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Announcements

Recorder Resource Supported


Now UniMRCP supports recorder resource too.

This resource allows to capture and store audio and video streams. The
use cases are evident for telephony platforms which provide call
recording and voice mail functionality with limited capacity of local
storage.
Utilization of UniMRCP client stack facilitates usage of remote
storage for recording and allows to use any MRCP compliant server,
which supports recorder resource such as UniMRCP server. Currently
only audio streams are supported, but hopefully video will be
supported either.
Moreover, set of synthesizer, recognizer and recorder resources allows
to build distributed and fully decomposed solutions, where telephony
applications may stay out of media processing, but do signaling.

Also sample recorder scenario has been added to umc application. To
use it update your local umcscenarios.xml file and input "run rec"
from console.

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

UniMRCP 0.8.0 Released


UniMRCP 0.8.0 (r1199) has been released and now is available for download.

Source Distribution
http://unimrcp.googlecode.com/files/unimrcp-0.8.0.tar.gz
http://unimrcp.googlecode.com/files/unimrcp-0.8.0.zip

Windows Installer
http://unimrcp.googlecode.com/files/unimrcp-0.8.0.exe

Windows SDK Installer
http://unimrcp.googlecode.com/files/unimrcp-sdk-0.8.0.exe

Dependency Packages (based on APR-1.3.8, APR-Util-1.3.9, Sofia-SIP-1.12.10)
http://unimrcp.googlecode.com/files/unimrcp-deps-0.8.0.tar.gz
http://unimrcp.googlecode.com/files/unimrcp-deps-0.8.0.zip

This release introduces
- enhanced support for SDP offer/answer model,
- added support for flexible mapping of MRCP channels and media terminations,
- new alternate applications (asrclient, umc) based on the UniMRCP client stack

As always it also addresses issues reported by the community.

Changes since previous release 0.7.0 (r1064) include:

- Added an alternate arsclient application based on libunimrcpclient library (Philip)
- Added ability to limit max number of engine channels in use (Issue-11)
- Fixed interoperability with Cisco Gateway with the support of "mode" attribute in RTSP transport header (Sadeek Kheer)
- Added ability to get MRCP version of the channel from plugins (Vali)
- Added ability to configure custom, plugin dependent attributes from unimrcpserver.xml (Vali)
- Integrated "telephone-event" support into offer/answer
- Applied patch, which basically implements RFC4733/RFC2833 sender procedure (Chaitanya, Issue-31)
- Applied patch, which implements utility functions to transform DTMF characters and event identifiers (Vali, Issue-31)
- Fixed interoperability with GVP. The response to RTSP DESCRIBE request shouldn't contain RTSP Transport header (Vali, Issue-39).
- Fixed possible access violation in APT logger (Vali, Issue-40)
- Fixed trailing space in MRCPv2 response-line, interoperability with Optimsys (Roger)
- Reworked MPF context entity
- Supported multiple MPF transactions (sub-messages) compound in one message
- Fixed race condition issue in PocketSphinx plugin (Alban)
- Some MRCP servers "lie" about existing connections (Asackheim, Issue-41)
- Supported multiple "cmid" attributes per each control m-line
- Added MPF object derived entities such as mixer (n-sources, 1-sink) and multiplier (1-source, n-sinks)
- Test whether an engine opened successfully (Vali, Issue-42)
- Dropped any further requests from application if session is being terminated
- Separated user interface (what MRCP server uses) and implementation (what plugins implement) of MRCP engines.
- Introduced MRCP_PLUGIN_VERSION_DECLARE macro, which is required for the plugins
- Fixed C++ compile error in codec_descriptor.h (Vali, Issue-44)
- Provided better apr-iconv support in VC build (Vali, Issue-45)
- Fixed crash of client stack caused by race condition on session termination (Garmt, Adam, Issue-33)
- Implicitly modify initial offer (RTSP/MRCPv1), if it contains disabled media stream (Vali)
- Added a user level function to associate (de-associate) external object with the session (Randy)
- Fixed APR_ARRAY_IDX related issue in apt_pair (Anthony)
- Fixed plugin_version_hdr in configure.ac (John)
- Added new, configurable umc application based on libunimrcpclient library
- Added support for grammars supplied inline within RECOGNIZE request in PocketSphinx plugin (HuaJGuo, Issue-43)
- Sharing RTSP session among resources (Vali, Issue-46)
- Returned JB_DISCARD_TOO_EARLY if jitter buffer is full (Anthony)
- The RECOGNIZE message must only inherit the no redefined SET-PARAMS headers (Anthony, Issue-47)


Thanks for using UniMRCP.

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

UniMRCP 0.7.0 Released


UniMRCP 0.7.0 (r1064) has been released and now is available for
download.

Source Distribution
http://unimrcp.googlecode.com/files/unimrcp-0.7.0.tar.gz
http://unimrcp.googlecode.com/files/unimrcp-0.7.0.zip

Windows Installer
http://unimrcp.googlecode.com/files/unimrcp-0.7.0.exe

Windows SDK Installer
http://unimrcp.googlecode.com/files/unimrcp-sdk-0.7.0.exe

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


This release fixes a few significant issues, which affect project usability under high load (stress testing).
It also introduces new ASR and TTS plugins based on open source PocketSphinx and Flite engines respectively.

Changes since previous release 0.6.0 (r930) include:
  • Using wakeable pollset in MRCPv2 server and client stacks
  • The terminate Remaining RTSP Sessions does not free all sessions (Anthony Masse, Issue-26)
  • Open log file in binary mode (Anthony Masse)
  • Allow trailing slash in RTSP URIs (V.Batrak)
  • Fixed crash while processing malformed SDP message
  • Failed to Find Channel errors (cpsoares, Issue-27)
  • Fixed the remaining issues related to message segmentation (Anthony Masse)
  • Fixed crash of client stack caused by race condition in mrcp-sofiasip module
  • Fixed potential crash of server stack (mrcp_session_destroy() should be called last)
  • Fixed potential crash of client stack (do not reference session object, since response to termination request has been sent)
  • Fixed conditial jump which depends on uninitialized value in mpf_decoder and mpf_encoder
  • Introduced wrappers around APR pool creators
  • Using rotation between multiple log files, instead of rollover in a single file (Anthony Masse)
  • Added LPCM codec as linear 16bit PCM codec in host order, while L16 is linear 16bit PCM codec in network order (Christopher Rienzo)
  • Added acinclude.m4 to allow autoreconf -i to work (Mike Jerris)
  • Fixed Mac OS X build (Mike Jerris)
  • Added PocketSphinx plugin
  • Added Flite plugin (Garmt)
  • Added the NOTICE file corresponding to the section 4 d of the Apache License (Jean-Michel Reghem)
  • RTP port management potential issues (cpsoares, Issue-34)
  • Decimal values in a mrcp_recog_header_t strangely rounded to the nearest tenth in the SET-PARAMS messages (Curatica, Issue-35)
  • Application freeze upon call to mrcp_client_shutdown (cpsoares, Issue-28)
  • Added basic NLSML document processor
  • Enhanced state machines to STOP in-progress SPEAK and RECOGNIZE requests on session termination
  • Stale MRCP sessions upon MRCP link disconnection (cpsoares, Issue-36)
  • Thread safe APR pools (cpsoares, Issue-29)

Thanks for using UniMRCP.
--
Arsen Chaloyan
The author of UniMRCP
http://www.unimrcp.org

Flite Plugin Available


I would like to announce the availability of Flite TTS plugin for UniMRCP server.
Special thanks goes to Garmt, who initially contributed and helped develop the plugin.

Currently supported TTS features are as follows:

English voices:
  • awb
  • kal
  • rms
  • slt
Methods:
  • SPEAK
  • STOP
  • PAUSE
  • RESUME
  • BARGE-IN-OCCURRED
Events:
  • SPEAK-COMPLETE
Synthesizer Speech Data:
  • text/plain

For the instructions on how to build and configure Flite with UniMRCP refer to
http://code.google.com/p/unimrcp/wiki/FlitePlugin

Please note, everything is working now, nevertheless this is basic availability only.
I have mostly tested the integrated solution in the following setup
SIPPhone -> FreeSWITCH/UniMRCPClient -> UniMRCPServer/Flite


Feedback is welcome.
Thanks,

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

PocketSphinx Plugin Available


I would like to announce the availability of PocketSphinx ASR plugin for UniMRCP server.

PocketSphinx UniMRCP server can be used with an MRCP compliant client, which supports JSGF grammar.
Currently supported ASR features are as follows:

Methods:
  • DEFINE-GRAMMAR
  • RECOGNIZE
  • GET-RESULT
  • START-INPUT-TIMERS
  • STOP
Events:
  • START-OF-INPUT
  • RECOGNITION-COMPLETE
Headers:
  • Noinput-Timeout
  • Recognition-Timeout
  • Completion-Cause
  • Completion-Reason
  • Save-Waveform
Grammar: JSGF

For the instructions on how to build and configure PocketSphinx with UniMRCP refer to
http://code.google.com/p/unimrcp/wiki/PocketSphinxPlugin

Please note, everything is working now, nevertheless this is basic availability only.
I have mostly tested the integrated solution in the following setup
SipPhone -> FreeSWITCH/UniMRCPClient -> UniMRCPServer/PocketSphinx

However it requires further testing in different environments from different speakers, e.t.c.
In other words, your feedback is welcome.

Thanks,
--
Arsen Chaloyan
The author of UniMRCP
http://www.unimrcp.org

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