won't recognize five or nine

[boombatz]

Hi Halle,
I have a dictionary as follows:
NSArray *firstLanguageArray = @[@”THE NUMBER IS ZERO”,
@”THE NUMBER IS ONE”,
@”THE NUMBER IS TWO”,
@”THE NUMBER IS THREE”,
@”THE NUMBER IS FOUR”,
@”THE NUMBER IS FIVE”,
@”THE NUMBER IS SIX”,
@”THE NUMBER IS SEVEN”,
@”THE NUMBER IS EIGHT”,
@”THE NUMBER IS NINE”];

the problem is that it will not recognize the phrases with five or nine. I’m trying it with different people and different iphones and it does not recognize. This is very frustrating and I’ve put tons of time into implementing this. Do you have any ideas.
This will be a show stopper for me unfortunately unless I can make this work.
Any thoughts are most welcome.
Thanks.

[Halle Winkler]

Hi,

There are a lot of discussions on these forums and Stack Overflow as well about the basic difficulty in offline speech recognition for recognizing contextless and rhyming one-syllable utterances like letters and numbers (there is actually a forum topic about this on the front page of the OpenEars forum topic list right now, or you can search for the keyword ‘numbers’). So, I can’t help you with your basic premise of an app which has required functionality based on this not-particularly-solved problem in speech recognition.

This is very frustrating and I’ve put tons of time into implementing this.

First apps are time-consuming and frustrating, and it’s normal to attribute that to whatever non-trivial core technology you’re using for it. I have also put serious time into supporting you although most of your questions are about your programming learning process, and that’s OK (we’ve all been there), but misattributed venting of your development stress to me isn’t a constructive path to go down (although we’ve all been there).

There are a couple of issues with your language model that could be improved. Your goal of only having utterances that take the form of:

“THE NUMBER IS _______”

Is not something that can be expressed by a statistical language model, which deals with probabilities rather than requirements. You want a grammar, which is a way of expressing an absolute rule for a matching utterance. Correct use of a grammar will limit the search field a bit more for your number at the end and could perhaps give a small improvement. This is a starting point for reading about grammars:

https://www.politepix.com/2014/04/10/openears-1-7-introducing-dynamic-grammar-generation/

For difficulties which arise when implementing this as a grammar, don’t forget to search these forums first for other developer’s similar questions that may have been answered. Good luck!

[boombatz]

Hi Halle,Thanks a lot for the very helpful response. I’ll go through all of this carefully.
BTW, I didn’t mean to attribute my frustration toward you, and I apologize for making it seem that way. This is quite the journey and I’m learning every minute. I very much appreciate your help along the way.
Happy New Year.

[Halle Winkler]

You’re welcome, and Happy New Year to you too!

[Author]

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