RE: (protocol) Add/remove grammars and continous recognition

Good catch.

I wish I had a trade secret for this. But no, ours doesn't do this either. ;P

Basically, the recognizer has to be idle to muck with the grammar/rule state. I'll correct the draft.

From: public-xg-htmlspeech-request@w3.org [mailto:public-xg-htmlspeech-request@w3.org] On Behalf Of Young, Milan
Sent: Wednesday, July 27, 2011 7:49 PM
To: HTML Speech XG
Subject: (protocol) Add/remove grammars and continous recognition

In the recent drafts of the protocol spec, we've moved to a model where grammars can be added and removed while recognition is ongoing.  Related to this is the ability to have a continuous stream of RECOGNITION-COMPLETE events associated with a single request.

This is a significant diversion from the MRCP spec from which we were originally "inspired".  Even with the proposed "continuous" mode, we were still very much based on discrete dialog states.  In other words, all grammars were known at the start of a recognition cycle.

The new spec mentions dictation with active hotwords as a scenario that would benefit from the more flexible model.  This seems like a good example, but I'm curious to know if there are others.  This is obviously a hard sell for companies based on traditional MRCP.

Robert, I'm also curious to know how Microsoft, in particular, is planning to implement this functionality.  Are you performing this magic at a low level in the recognizer, or are these add/remove grammar commands just macros for restarting recognition.  I'm not so much trying to get at your trade secretes here (although source code would be nice ;) ), but trying to understand how such a thing might eventually impact a conformance test.

Thanks