Vosk integration with Freeswitch - mod_vosk - what is the status?

[lafar6502]

Hi, i would like to try Vosk with Freeswitch for some automatic keyword recognition in voip calls (yes, no, numbers, etc) and see how far i get. But it's a bit unclear to me what is the supported integration approach for Freeswitch About 2 years ago you tried to merge a pull request for 'mod_vosk' into Freeswitch repo, but in the discussion that followed you decided to host it as independent project / git repo instead. But i cant find any such project (mod_vosk). Does it exist at all? Or have you decided to go with some different approach? What is the easiest way to connect Vosk engine with Freeswitch?

Best regards Rafal

[nshmyrev]

Our integration code reside here, you can simply build it yourself:

https://github.com/alphacep/freeswitch/tree/master/src/mod/asr_tts/mod_vosk

You also need alphacep/libks. The pull request for vosk into freeswitch is still pending due to libks things:

https://github.com/signalwire/freeswitch/pull/578

https://github.com/signalwire/libks/pull/74

[nshmyrev]

You can also use vosk unimrcp server instead and freeswitch unimrcp plugin:

https://github.com/alphacep/unimrcp-vosk-plugin/tree/vosk-plugin

[lafar6502]

Thanks!

[cyrenity]

@nshmyrev I am trying to build mod_vost with freeswitch 1.10.7 but getting the following error when I try to load the module

[CRIT] switch_loadable_module.c:1750 Error Loading module /usr/local/freeswitch/mod/mod_vosk.so
**/usr/local/freeswitch/mod/mod_vosk.so: undefined symbol: __ks_json_add_string_to_object**

[andreslavariega]

@nshmyrev I am trying to build mod_vost with freeswitch 1.10.7 but getting the following error when I try to load the module

[CRIT] switch_loadable_module.c:1750 Error Loading module /usr/local/freeswitch/mod/mod_vosk.so
**/usr/local/freeswitch/mod/mod_vosk.so: undefined symbol: __ks_json_add_string_to_object**

I have the same problem, did you manage to solve it?

[nshmyrev]

@andreslavariega feels like you are using wrong libks, we have our own version with fixes https://github.com/alphacep/libks

[andreslavariega]

@andreslavariega feels like you are using wrong libks, we have our own version with fixes https://github.com/alphacep/libks

@nshmyrev Thanks for your prompt response. I tell you my steps.

I deleted libks and then installed libks from the indicated source code.

Use these commands, and previously install cmake 3.7.2.

cmake . -DCMAKE_INSTALL_PREFIX:PATH=/usr make cd /usr/src/libks/ cmake . make make install

Then I ran the test successfully.

root@voskFreeSwitch:/usr/src/libks# ctest . Test project /usr/src/libks Start 1: test pools 1/17 Test #1: testpools..................... Passed 0.02 sec Start 2: testrealloc 2/17 Test #2: testrealloc .................. Passed 0.02 sec Start 3: testacl 3/17 Test #3: testacl .................. Passed 0.02 sec Start 4: testthreadpools

However, when I want to compile the freeswitch again, I get the error that it can't find libks. I think it's because I didn't install it in the correct folder, or maybe I should reference it at compile time.

checking for libks >= 1.8.2... configure: error: You need to either install libks

[nshmyrev]

You need to read details in configure.log, it should be clear why there is no libks. Check inside or attach it here.