jsgf question

[Alex]

Hello,
I am using pocketsphinx 0.8 and I have a problem with JSFG grammar: pocketphinx returns recognition strings that do not completely match the grammar i specified.

For example, I have

public <test> = took (one | two | three | four )* apples</test>

So, basically I expect user to start with word "took", say few numbers and finish with word "apples"

However, I get recognition strings without the mandatory ending. For example "took one two four" etc.

Am i misunderstanding basic JSFG concepts???

Thanks in advance for your help,

Alex

[Nickolay V. Shmyrev]

To get hypothesis which matches the grammar you need to use

ps_get_hyp_final

function

[Alex]

Sorry for being dense :)
I modified ps_get_hyp to ps_get_hyp_final but still see same result.
Here is the exerpt from my code:

/ Finish decoding, obtain and print result /
ps_end_utt(ps);
hyp = ps_get_hyp_final(ps, &out_score, &uttid);
if(hyp!=NULL){
E_INFO("%s: %s,score2=%ld\n", uttid, hyp,out_score);
...
}

My grammar:

JSGF V1.0;

grammar picking;
public <picking> = меню|повторить|пропустить|обратно|<number> ок ;
<number_0> = ноль | один | одну| два | две | три | четыре | пять | шесть | семь | восемь | девять | десять ;
<number> = <number_0> (<number_0>)*;</number_0></number_0></number></number_0></number></picking>

And recognized utterance: два два три

[Nickolay V. Shmyrev]

Sorry, it's hard to tell you what is going on without an audio.

You are welcome to provide the samples you are trying to recognize for analysis.

[G10DRAS]

is there any equivalent function of ps_get_hyp_final in python ? I am using pocketsphinx-5prealpha .

[Nickolay V. Shmyrev]

No, moreover I removed ps_get_hyp_final from pocketsphinx altogether. Discussion on that is here:

https://github.com/cmusphinx/pocketsphinx/issues/13