[Resolved] Problem with 1st utterance after changeLanguageModelToFile

Hey there, I’m also using buttons and delays and things that go a little beyond the limitations of this brilliant API. Firstly a million thanks, Halle, for the effort you’ve put in and your generosity to share.
Darbienapp, and anyone else seeking to do similar things, what you are experiencing is this:
The continuousModel will calibrate, then check if there’s a request to change the LM, then sit indefinitely in a loop, waiting for input. You are clicking the button to change the LM, but its having no effect because its waiting for speech. The only thing that will invoke the LM change now is to say something, which will mean an incorrect and useless hypothesis based on the first LM.
What you want to do is go into the continuousModel.mm file and find the block that looks like this:

// Wait for speech and sleep when we don't have any yet.
while ((speechData = cont_ad_read(continuousListener, audioDeviceBuffer, maximumAndBufferIndices)) == 0) {
usleep(30000);
if(exitListeningLoop == 1) {
break; // Break if we're trying to exit the loop.
}
}
if(exitListeningLoop == 1) {
break; // Break if we're trying to exit the loop.
}

and change it to this:


// Wait for speech and sleep when we don't have any yet.
while ((speechData = cont_ad_read(continuousListener, audioDeviceBuffer, maximumAndBufferIndices)) == 0) {
usleep(30000);
if(exitListeningLoop == 1) {
break; // Break if we're trying to exit the loop.
}
if(thereIsALanguageModelChangeRequest == TRUE) {
break; // leave this 'waiting for speech' loop
}
}

if(thereIsALanguageModelChangeRequest == TRUE) {
continue; // go back to start of loop and invoke LM change on the way back to 'waiting' loop
}
if(exitListeningLoop == 1) {
break; // Break if we're trying to exit the loop.
}

This breaks the ‘waiting for input’ loop, then by calling continue, cycles back to the start of the main recognition loop and thus invoking the LM change on the way back.
Hope this helps anyone trying to do the same.

Just ran into this as well and John’s changes fixed me right up… Many thanks!

Had the same problem. Works wonderfully, thanks, John!