I would like to announce the new release of UniMRCP connector bridge
for Asterisk. The connector bridge is prepackaged with the latest Asterisk-1.6.2.9 and UniMRCP-r1744 (> 1.0.0). However, previous versions of Asterisk and UniMRCP are supported as well. This release contains several enhancements in both res_speech_unimrcp and app_unimrcp modules. Changes in res_speech_unimrcp include
Changes in app_unimrcp include
The released package can be downloaded from http://unimrcp.googlecode.com/files/uni-ast-package-0.3.0.tar.gz For the installation, configuration and usage please refer to the wiki page http://code.google.com/p/unimrcp/wiki/asteriskUniMRCP Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
UniMRCP announces the successful interoperability between its MRCP client and VoiceNavigator, an IVR solution developed by STC. Comprehensive certification tests guarantee excellent and fully compliant operation between products utilizing the UniMRCP client stack and VoiceNavigator. VoiceNavigator is a cutting-edge IVR solution especially designed for the Russian language. It is based on powerful and reliable speech recognition and synthesis technologies developed by STC, the world leader in speech technologies for Russian. Recognized as the “best product of the year – 2010” at the Moscow CCWF-2010, STC has got many requests from Asterisk users. In order to meet the customer demand, STC has ensured full interoperability between VoiceNavigator and popular open source softswitches such as Asterisk and FreeSWITCH using UniMRCP’s unique and comprehensive set of connectivity options. For more information, you may also check the following: http://speechpro.ru/media/news/2010-06-21 http://igorg.ru/ http://asterisk.ru/ -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
I'm proud to announce the first major release of UniMRCP 1.0.0 r1725. This release is a result of the development continuously lasting more than two years. The open source initiative works. There have been a number of successful deployments since 0.7.0 release. I cannot recall any major API change or an outstanding issue encountered meanwhile. All these make me think it is the time for 1.0.0 now. On the other side, this is just another recurrent release, which as usual introduces several enhancements and fixes. The major enhancement is in the support of transparent header fields. While the old API to set/get the header fields by numeric identifiers remains intact, the new methods are added to manipulate with the header fields using string identifiers. Changes since previous release 0.10.0 r1577 include
You may stick with the older versions, if needed; but of course, you are all are encouraged to upgrade.
http://unimrcp.googlecode.com/files/unimrcp-1.0.0.zip
http://unimrcp.googlecode.com/files/unimrcp-1.0.0.exe
http://unimrcp.googlecode.com/files/unimrcp-sdk-1.0.0.exe
http://unimrcp.googlecode.com/files/unimrcp-deps-1.0.0.zip Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
I want to explore in more details one of the basis ideas, which is
getting more and more mature. The idea is simple and clear enough to
build and/or launch a public MRCP server. The word "public" has the
following meanings in this scope. 1. Multilingual and Nationwide MRCP Server As you know, I have provided an interface to plug 3-rd party TTS and ASR engines into UniMRCP server. I may only wonder how many plugins have already been written and exist nowadays. To recall, there have been contacts from all the continents from East to West and South to North. If we could unite all these, it would be indeed a unique solution, which speaks and recognizes so many languages. 2. Globally Accessible MRCP Server The mentioned above solution can also be globally accessible from everywhere in the world provided as a software as a service (SaaS). While MRCP servers are usually deployed with MRCP clients located on the same LAN and this is still a typical approach, there are many use cases, where a publicly available MRCP server can be quite useful. Note that there are a few MRCP aware devices today and there will be more tomorrow. Although we have almost all the required components now and an ability to turn this undertaking into a truly success, there is still a certain way to go. I'm looking forward to a robust and mutually beneficial partnership with TTS and ASR vendors which might be interested in this idea. Feel free to express your thoughts either publicly or contact me off-list. Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP arsen.chaloyan@unimrcp.org http://www.unimrcp.org |
UniMRCP turns 2 during the days. Consistency, stability and overall reliability are what I'm usually trying to achieve not only in this project, but in an everyday life. Time has proved how much I was right creating this project. UniMRCP has been evolved probably a bit slowly, but consistently and reliably, welcoming everyone interested in the project and bypassing possible troubles we all meet from time to time in our life. Overall integrity and stability of the software, current level of support, a number of developed solutions and readiness for commercial deployments make management of the project more easier and predictable now. What to expect from the project in the nearest future. I'll roll out 1.0.0 release in a month, most probably by the end of May. No new major features will be added in the meantime. It'd be better to stop for a moment and polish what we have for now. But don't worry, new features will follow up thereafter in Q2. What I expect from all of you. First of all, I need your help in all what the development of an open source project incurs. Commercial support options are becoming more and more actual. This is probably the most viable and mutually beneficial option I have seen so far. Also, I'm looking forward to strengthen the relationships basically established with companies located all over the world. There have been contacts mostly from US, a few from Europe and I'm glad to notice increasing activity from Russia recently. In addition, I have a few items on the list to discuss with you. These items include a major and a few minor, but still important to me tasks, which I'm trying to sort out now probably for Q3 and so on. I'll follow up with separate posts next week. Please stay tuned and thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
Advanced Voice Solutions Support for the
Telephony Industry
Acapela Speech Synthesis Powered by UniMRCP Open Source Project Acapela Group, a leading Voice expert, and UniMRCP, an open source MRCP project, are announcing the release of Acapela MRCP add-on 2.000, an extension of Acapela TTS for Windows and Linux servers, providing customers with a greater choice of high-end speech solutions using MRCPv2. Telephony providers can now benefit from Acapela’s’s high quality and pleasant voices while relying on MRCPv2 for optimized integration of speech into their services and applications. MRCP (Media Resource Control Protocol) allows telephony applications to communicate with speech resources, controlling media processing resources over the network using a distributed, client/server architecture. The main media processing resources specified by the MRCP standard are the Speech Synthesizer (TTS), Speech Recognizer (ASR), Speech Recorder (SR), and the Speaker Verifier (SV). UniMRCP is an open source cross-platform MRCP project, which provides everything required for the implementation and deployment of both an MRCP client and an MRCP server. UniMRCP encapsulates SIP/MRCPv2, RTSP, SDP and RTP/RTCP stacks and provides integrators with an MRCP v1 and v2 user level API. ”We are very happy to announce the compliance with MRCPv2 of our Acapela TTS Server solution realized in cooperation with UniMRCP Open Source Project, which has been an outstanding partner in this process. Acapela Group, as a voice expert dedicated to innovation and finding the best possible voice solutions, fully supports market standards to ease and optimize text to speech use in telephony applications. The full interoperability of Acapela’s speech engine with MRCPv2 is part of the company’s commitment to support the industry and help optimize the easy test and deployment process”–comments Lars-Erik Larsson, CEO of Acapela Group. “I am proud to announce the availability of Acapela TTS voices, based on the UniMRCP server software library. The number of languages and set of high quality voices Acapela supports are quite impressive. Through the integration with the UniMRCP server, Acapela MRCP add-on 2.000, makes its TTS engine available to the users of any MRCPv2-aware platform. This solution might be an ideal choice to be used in conjunction with well-known open source, as well as commercial products for the deployment of IVRs, Call Centers, IPPBXs,” said Arsen Chaloyan, author of UniMRCP. The Acapela MRCPv2 add-on is available on both Acapela TTS for Windows and Linux servers. It enhances Acapela’s capability to fully respond to the telephony market’s requirements and reinforces the company’s position as an unequalled partner in the domain of computer-based voice processing. Acapela’s expertise and commitment to quality and service covers all aspects of voice, from the ease of integration and deployment to the delivery of custom voices, providing unique voice personas for companies or brands and- guaranteeing highest customer satisfaction and affinity. About UniMRCP: About Acapela Group Check out http://www.acapela.tv - the sparkling laboratory of Acapela Group, for a fresh and exciting take on how speech synthesis can now be used: acapela.tv is a showcase and test playground that shares the possibilities of speech synthesis with Internet users, allowing them to discover innovative and attractive ways to make smart use of speech applications online. Contact Caroline Houel, caroline.houel@acapela-group.com |
UniMRCP 0.10.0 r1577 has been released and now is available for download.
http://unimrcp.googlecode.com/files/unimrcp-0.10.0.zip
http://unimrcp.googlecode.com/files/unimrcp-x64-0.10.0.exe
http://unimrcp.googlecode.com/files/unimrcp-x64-sdk-0.10.0.exe
http://unimrcp.googlecode.com/files/unimrcp-deps-0.9.0.zip This release introduces revamped configuration format. The new format allows to use profiles in more flexible way. Also, it addresses XML conformance issues. Corresponding XML schemas are available as well. Please upgrade your local configuration files as the old format is no longer valid. The other major addition is the implementation of request timers. It aims to address a potential vulnerability of the UniMRCP client stack in case there is no response back from an MRCP server. RTSP, MRCPv2 request timeouts as well as several SIP timeouts are configurable now. Yet another interesting addition is an utility tool called svnrev, which allows to generate uni_revision.h header file containing SVN revision number and build stamp. Although this tool has basically been integrated into VS and GNU build, it's experimental and probably informative only yet. Changes since previous release 0.9.0 r1383 include
Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
I would like to announce the second release of UniMRCP connector bridge for Asterisk. The connector bridge is prepackaged with Asterisk-1.6.1.14 and UniMRCP-r1456 (> 0.9.0). These are the recommended versions to use, though other versions are also supported. This release contains a few enhancements in speech resource module (res_speech_unimrcp), which implements the Generic Speech Recognition API of Asterisk. * Added internal configuration file (/etc/asterisk/res-speech-unimrcp.conf) with further reference to UniMRCP client configuration. * Supported various recognition grammars including builtin grammar, text/uri-list, multipart/mixed and everything else. * Added an option to preload grammars for a channel * Added an option to set properties (MRCP header fields) for a channel It also introduces a new and great application module (app_unimrcp) gracefully contributed and actively maintained by J.W.F. Thirion <derik@molo.co.za> Molo Afrika Speech Technologies (Pty) Ltd. Asterisk dialplan applications are: * MRCPSynth - text to speech, * MRCPRecog - speech recognition The released package can be downloaded from http://unimrcp.googlecode.com/files/uni-ast-package-0.2.0.tar.gz For the installation, configuration and usage please refer to the wiki page http://code.google.com/p/unimrcp/wiki/asteriskUniMRCP Feel free to participate in the discussions with the questions and issues you may have http://groups.google.com/group/unimrcp Thanks for using UniMRCP, -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
UniMRCP 0.9.0 (r1383) has been released and now is available for download. Source Distribution http://unimrcp.googlecode.com/files/unimrcp-0.9.0.tar.gz http://unimrcp.googlecode.com/files/unimrcp-0.9.0.zip Windows Installers (32-bit and 64-bit) http://unimrcp.googlecode.com/files/unimrcp-0.9.0.exe http://unimrcp.googlecode.com/files/unimrcp-x64-0.9.0.exe Windows SDK Installers (32-bit and 64-bit) http://unimrcp.googlecode.com/files/unimrcp-sdk-0.9.0.exe http://unimrcp.googlecode.com/files/unimrcp-x64-sdk-0.9.0.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 new major features such as - Implementation of MRCP recorder resource - Support for RFC4733/RFC2833 out-of-band and in-band DTMF generation and detection - Implementation of RTCP stack (Nuance compliance) - Support for 64-bit platforms For the first time 64-bit Windows binaries are available as well. Please note, 64-bit UniMRCP can be installed only on 64-bit OS, while 64-bit UniMRCP SDK can be installed on both 32-bit and 64-bit. This allows you to develop 64-bit applications even on 32-bit OS. Changes since previous release 0.8.0 (r1199) include - Added compile time define to support "too long" MRCP request identifiers (Issue-48, Vali) - Fixed race condition on client stack initialization (Issue-49, Aabaziev) - Re-factored abstract MRCP resource entity - Loaded MRCP resources from config (unimrcpclient.xml and unimrcpserver.xml must be updated) - Added a few accessors to mrcp_application interface in order to completely hide session interface from the application context. - Properly processed nua's shutdown (John) - Fixed function prototypes to compile without warnings with -Wstrict-prototypes gcc option (John) - Fixed a few RTSP/MRCPv1 session management related issues (Issue-51, Vali) - Fixed core dump with large in-line grammars (Issue-52, Asackheim) - Added recorder plugin and sample recorder scenario/session - Added DTMF generator and detector (Vali) - Added sample DTMF recognizer scenario/session - Reworked timer/clock related entities, added scheduler entity - Fixed build warnings from sun studio (Mike) - Supported both synchronous and asynchronous start of client stack. - Fixed memory (resource) leak on client/server task termination. Threads MUST be detached first in case of async task termination (Issue-53, Derik) - Installed uni_version.h alongside with other header files required for the integration - Added x64 platform configuration to VS2005 build - Fixed compilation warnings using 64-bit compilers - Updated inno-setup scripts to be able to build both win32 (x86) and x64 (x86-64) installers. Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
Happy New Year! This is the greeting, which is likely said and heard many times during the days. It's a good tradition and time when we may summarize activity done during the previous year and setup some goals for the new year. The project continued to evolve during 2009, despite of the global financial crisis and resulted difficulties. There were scheduled and periodically released five versions of UniMRCP, which introduced new features, provided bug fixes and ensured stability. Integration with well know open source telephony platforms, utilization by several corporates, support contracts, custom development options and my strong desire keep the project going. This makes me think about the first major release of UniMRCP in 2010, which would be another value added release indicated a certain milestone. I'll follow up with the next 0.9 version during the days and come up with a few suggestions, proposals thereafter during this month. Also it seems I've got another good tradition to polish the website of the project a bit during the holidays. Please checkout the new face. Let it be a successful and prosperous year for all of us! -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
I would like to announce the availability of the Cepstral Swift TTS plugin (r470). Now UniMRCP server naturally speaks Cepstral Voices and obviously it's much more than the demo synthesizer available in the tree. Thus I encourage everyone to give it a try. See the Wiki (http://code.google.com/p/unimrcp/wiki/CepstralPlugin) on how to build and use the Cepstral plugin.
Last year, when I had integrated and made the Cepstral available for old OpenMRCP project, I lately realized that it just was start of the end of OpenMRCP. Now announcing the Cepstral plugin for UniMRCP I believe it's just start of promotion and deployment of UniMRCP. Looking forward for the integration of more plugins, Arsen |
At this time I'd like to declare UniMRCP can be compiled for and run on 64-bit operating systems as a native 64-bit application. There were reports indicating UniMRCP successfully runs on 64-bit Linux, though I didn't try it myself before. However, things have been changed recently and I have tested UniMRCP enough on both 64-bit Linux and Windows. - Linux Everything is quite straightforward and usual on CentOS 5.3 x86-64 I tried. One should proceed with the regular installation. ./configure make make install It's possible to cross-compile for 64-bit even on 32-bit Linux CFLAGS=-m64 CXXFLAGS=-m64 LDFLAGS=-m64 ./configure make make install - Windows Visual Studio itself is a 32-bit application and it's a bit strange to me, but as of today, there is no native 64-bit version. Fortunately, 64 bit tools (compiler, debugger) are available, but those tools are not installed by default, even while installing VS on 64-bit Windows. So if you're going to play with this stuff, make sure you have 64-bit compiler installed. I have added x64 configuration next to win32 to project files (vcproj) and property sheets (vsprops) in order to compile UniMRCP for a 64-bit platform. Now UniMRCP nicely works even on Windows 7 x86-64. Corresponding APR and Sofia-SIP project files will be included in the dependency package to be released with UniMRCP 0.9.0 version after the New Year. Happy Holidays, -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
I'd like to announce the release of an open source connector bridge for Asterisk and UniMRCP. The connector bridge is an implementation of Asterisk's Generic Speech API using UniMRCP client stack. This module allows Asterisk to connect to MRCPv2 or MRCPv1 compliant servers for speech recognition. It also allows to offload Asterisk using client/server architecture MRCP provides. Moreover, all the speech applications, which are written on top of Generic Speech API now can be easily used via MRCP too. The complete package, which includes everything required for UniMRCP integrated Asterisk deployment, is now available for download http://unimrcp.googlecode.com/files/uni-ast-package.tar.gz The open development model with community driven initiatives is what I started UniMRCP with and entered the open source world for. The integration with powerful telephony platforms such as Asterisk would allow the project to further evolve and accelerate. I have been asked many times for such an integration. Now it's your turn to give it a try, provide feedback and help carefully test and evolve the solution. Thanks for using UniMRCP, -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
The RTP control protocol (RTCP) has been implemented in the trunk. RTCP allows to monitor RTP delivery. The protocol is based on periodic transmission of control packets. The primary function is to provide statistical reports such as Sender Report (SR) and Receiver Report (RR). There are a number of options to configure. 1. Enable RTCP support Currently RTCP is disabled by default, you should enable it first from unimrcpclient.xml and/or unimrcpserver.xml configuration files. <!-- enable/disable rtcp support --> <param name="rtcp" value="1"/> 2. Transmission of RTCP reports The default transmission interval is 5 sec. This is the period RTCP reports are generated and sent with. Typically, RTCP traffic bandwidth should be fixed at 5% of overall RTP/RTCP session bandwidth. Anyway, you can adjust the interval by the following parameter. To disable periodic transmission set it 0. <!-- rtcp transmission interval in msec --> <param name="rtcp-tx-interval" value="5000"/> 3. Transmission of an RTCP BYE packet According to the specification (RFC3550), a participant should sent an RTCP BYE packet when he wishes to leave an RTP session. Typically, RTP is used in conjunction with higher level session management protocols such as SIP, H323, which provide own mechanisms for the participants to join/leave a session. Therefore, presence of RTCP BYE packet is usually optional. However, the role of RTCP BYE in an MRCP environment was re-defined by well known vendor(s). It's intended to indicate end of input (utterance). All the mentioned options are supported by UniMRCP now. <!-- rtcp bye policies 0 - disable rtcp bye 1 - send rtcp bye at the end of session 2 - send rtcp bye also at the end of each talkspurt (input) --> <param name="rtcp-bye" value="1"/> 4. Reception of RTCP packets Currently this routine dumps received RTCP packets in the logs and it is mainly helpful for monitoring and debugging. The period, which is used to check for new RTCP messages, can be adjusted by the following parameter. To disable the reception of RTCP packets set it 0. <!-- period (timeout) to check for new rtcp messages in msec --> <param name="rtcp-rx-resolution" value="1000"/> Give it a try by choosing options which best fit your needs. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
Now UniMRCP supports recorder resource too. This resource allows to capture and store audio and video streams. The Also sample recorder scenario has been added to umc application. To Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
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 (r1064) has been released and now is available for download. Source Distribution Windows Installer Windows SDK Installer 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:
Thanks for using UniMRCP. -- Arsen Chaloyan The author of UniMRCP http://www.unimrcp.org |
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:
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 |
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:
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 |
UniMRCP 0.6.0 (r930) has been released and now is available for download. Source Distribution http://unimrcp.googlecode.com/files/unimrcp-0.6.0.tar.gz http://unimrcp.googlecode.com/files/unimrcp-0.6.0.zip Windows Installer http://unimrcp.googlecode.com/files/unimrcp-0.6.0.exe Windows SDK Installer http://unimrcp.googlecode.com/files/unimrcp-sdk-0.6.0.exe Windows Installer has been built using - APR-1.2.12 - Sofia-SIP-1.12.10 + patch submitted to issue-25 - Visual Studio 2005 (release build) This is a bug fix release, which contains mostly backward compatible minor API changes. Changes since previous release 0.5.0 (r828) include: - Modifications on MRCP headers (Patrick, issue-17) - Fixed crash of client stack in case of error, when answer contains no SDP - NAT related enhancements (Garmt, issue-12) - Enhancements of prosody-volume and prosody-rate params (Bayram, issue-18) - Fixed string tables of MRCP headers - Fixed processing of DEFINE-LEXICON request (Mahmoud) - Fixed processing of consecutive SPEAK and STOP requests (Mahmoud, issue-23) - Added support for resource discovery (SIP OPTIONS and RTSP DESCRIBE) in server stack (Bayram, issue-19) - Fixed potential dead lock in MPF layer - Added CSeq header field in RTSP Announce event generated by server (dbansal, issue-21) - Enhanced MPF layer to avoid additional transformations when possible (virtualson) - Reworked RTSP client stack, fixed interoperability with Acapela MRCPv1 server (Garik, issue-22) - Added resource discovery API to client stack (chaojenh, issue-24) - Fixed crash on Ubuntu 64bit (Chaitanya) - Fixed sporadic crash, while referencing dangling pointer in network client/server stacks (Garik) - Fixed file handle leak in demo synthesizer plugin - Modified the logger to be able to create and use the same singleton object in core and plugins (Garmt) - Fixed several valgrind warnings related to memory initialization and usage Thanks for using UniMRCP. Arsen Chaloyan |
I would like to present the ecosystem of the project I thought about recently. I used to focus primary on the software development, which is definitely crucial task towards successful project, but still is not enough. I want to establish an ecosystem which will "work" for all of us. The key components are: 1. Community 2. Sponsorship 3. Partnership 4. Services This is just the way I see the project can be further evolved. The creator of UniMRCP. www.unimrcp.org |
I would like to introduce Cepstral MRCP server as the primary UniMRCP based solution. I want Cepstral to be recognized as the main contributor and sponsor Learn more about the solution: Also read the press release about successful interop of Cepstral's TTS Arsen Chaloyan The creator of UniMRCP. www.unimrcp.org |
I would like to announce the successful interoperability between UniMRCP client and LumenVox ASR MRCPv2 server. This is the follow up to the successful MRCPv1 interoperability. UniMRCP client stack can be used as a building block to provide connectivity to LumenVox MRCPv1 and/or MRCPv2 servers. It provides typical configurations and sample network captures. You may also add comments and share your experience there. LumenVox - Automatic Speech Recognition Vendor (www.lumenvox.com) Arsen. |
UniMRCP 0.5.0 (r828) has been released and now is available for download. Source Distribution http://unimrcp.googlecode.com/files/unimrcp-0.5.0.tar.gz http://unimrcp.googlecode.com/files/unimrcp-0.5.0.zip Windows Installer Windows SDK Installer Windows Installer has been built using - APR-1.2.12 - Sofia-SIP-1.12.10 - Visual Studio 2005 (release build) This release contains significant improvements in RTSP/MRCPv1 and MRCPv2 parser and transport stacks. Thus everybody is welcome to upgrade. There are no interface changes introduced in this release, but a minor enhancement in logger (apt_log), which is fairly easy to adapt. Version number of plugin also has been increased (0.3.0). You need just to recompile/build your plugins against the released source. Changes since previous release 0.4.0 (r722) include - Fixed Aculab MRCPv1 client interoperability (the issue concerned RTSP/MRCPv1 stack mentioned above ) - Fixed processing of error conditions in client and server - Supported manual NAT traversal in case of SIP/MRCPv2/RTP and RTSP/MRCPv1/RTP (no STUN yet) - Made possible to run multiple instances of unimrcpclient on the same host. - Updated recognizer header (added missing fields) - Improved documentation and project infrastructure Thanks for using UniMRCP. |
UniMRCP 0.4.0 version (r722) is available to download: Source Distribution http://unimrcp.googlecode.com/files/unimrcp-0.4.0.tar.gz http://unimrcp.googlecode.com/files/unimrcp-0.4.0.zip Windows Installer Windows SDK Installer Changes since previous release (r644) - Enhanced RTSP parser (session-id, transport headers) - Enhanced demo scenarios (speak.xml, grammar.xml) - Configurable MRCPv1 resource names - Enhanced RTSP offer/answer (RTSP-SETUP contains no SDP) - Enhanced codec negotiation (own preference, ...) - Improved support for vendor-specific-params - Supported multiple plugins of the same resource - Enhanced MRCPv2 offer/answer (new and existing connections) - and more ... |
The new UniMRCP website has been launched. This site contains improved layout and navigation. It allows viewing dynamic content such as recent announcements and discussion topics. The content will be continuously updated during 2009 and hopefully there will be more announcements to follow up. Wish you all happy and prosperous new year. Arsen. |