The company I work for is creating an IVR application that utilizes speech recognition. One of the prerequisites is that during the asked question the user can barge in with the answer.
The issue we are coming up against is that the confidence interval for the speech recorded during barge-in is often very poor.
Extraneous data that may be useful:
We are using Lumenvox for our speech recognition[/]
We are running Asterisk 184.108.40.206[/]
When testing using an internal SIP connection the confidence interval is much higher than when we test using an outbound line.[/]
This occurs regardless of the complexity of the grammar files.[/]
Hardware echo cancellation is enabled and functioning.[/]
Anybody have any idea why this is happening, or what the fix could be?