Changing FSG at runtime in GStreamer

[Gopalakrishna]

Hello,
I am having problem changing the FSG file dynamically in pocketsphinx using
gstreamer. I am able to initialize the fsg for the first time.

g_object_set(G_OBJECT(filter4),"fsg","first.fsg",NULL);

When I attempt to change the FSG using

g_object_set(G_OBJECT(filter4),"fsg","second.fsg",NULL);

it gives
INFO: fsg_model.c(542): FSG: 50 states, 44 unique words, 44 transitions (89
null)
INFO: fsg_model.c(177): Computing transitive closure for null transitions
INFO: fsg_model.c(228): 43 null transitions added
INFO: fsg_model.c(281): Adding silence transitions for <sil> to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++NOISE++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++BREATH++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++SMACK++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++COUGH++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++LAUGH++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++TONE++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++UH++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(281): Adding silence transitions for ++UM++ to FSG
INFO: fsg_model.c(301): Added 50 silence word transitions
INFO: fsg_model.c(325): Adding alternate word transitions (ZERO,ZERO(2)) to
FSG
INFO: fsg_model.c(358): Added 1 alternate word transitions
INFO: fsg_model.c(325): Adding alternate word transitions (ONE,ONE(2)) to FSG
INFO: fsg_model.c(358): Added 1 alternate word transitions
INFO: fsg_model.c(325): Adding alternate word transitions (A,A(2)) to FSG
INFO: fsg_model.c(358): Added 1 alternate word transitions
INFO: fsg_model.c(325): Adding alternate word transitions (EXIT,EXIT(2)) to
FSG
INFO: fsg_model.c(358): Added 1 alternate word transitions </sil>

and then simply exits.

The source code of pocket sphinx gstreamer plugin does allow this change. I am
not able to get the mistake.

Please help.

[Nickolay V. Shmyrev]

1. Which pocketsphinx version are you talking about?
2. Are there words missing in the dictionary inside fsg?

[Gopalakrishna]

I am using pocketsphinx 0.6 and all the words are in the dictionary.

Btw the above problem is solved by adding

FSG_BEGIN second

to the fsg file as per the example in the source code tidigits.fsg.

Now I have a new problem the accuracy of the words spoken while the second fsg
is loaded is low, the accuracy is low when he new fsg has more states than the
first.

[Gopalakrishna]

Thanks every one for the help. I solved my problem, the problem was that I was
not running

g_object_set(G_OBJECT(filter4),"configured",TRUE,NULL);

after the g_object_set.

[Nickolay V. Shmyrev]

Btw the above problem is solved by adding
FSG_BEGIN second

That issue was fixed after the release, will be available in next version

problem was that I was not running
Code:
g_object_set(G_OBJECT(filter4),"configured",TRUE,NULL);

Hm, that's not a straightforward API indeed. We need to fix this.