If all the applications running in a node are to use the same speech recognition technology, there is no need to specify RecoDefinitions in the AppName configuration entry. All applications can use the RecoDefinitions in the NodeName configuration entry. However, if you are using different technologies for different applications, you need to read this section.
If all the applications running in a node are to use the same speech recognition technology, there is no need to specify RecoDefinitions in the AppName configuration entry. All applications can use the RecoDefinitions in the NodeName configuration entry. However, if you are using different technologies for different applications, you need to read this section.
When a Blueworx Voice Response application attempts to use speech recognition, the current locale of the application is used to find the appropriate RecoDefinition. In VoiceXML, the value of the vxml xml:lang attribute determines the current locale of the application. The AppName configuration entry is searched first, and if a RecoDefinition is found for the locale, or for “all locales”, it is used. If no RecoDefinition is found for the locale, the NodeName configuration entry is searched.
Figure 1 and Figure 2 show five contrasting examples of the search for a RecoDefinition to be used for Canadian French.
- In example (a) a single RecoDefinition that applies to all locales is found in the AppName entry. Because of this, the RecoDefinitions in the NodeName entry are not even considered. RecoType A is used for Canadian French.
- In example (b) a RecoDefinition for Canadian French is found in the AppName entry, and this overrides the RecoDefinition that applies to all locales (A,*), so RecoType B is used. Again, the NodeName entry is not considered.
- In example (c), even though there is a specific RecoDefinition for fr_Fr in the AppName entry, this does not apply if the current locale is fr_CA. There is no RecoDefinition that applies to all locales, so the NodeName is searched. Here, a RecoDefinition for all locales is found.
- Example (d) is like example (c), with the difference that a specific RecoDefinition for Canadian French is found in the NodeName entry.
- Example (e) is like example (c), with the difference that a RecoDefinition for all French locales is found in the NodeName entry.
If this seems over-complicated, you can avoid any confusion by specifying all your RecoDefinitions in the NodeName configuration entry.
Once a suitable RecoDefinition is found, the RecoType is used to search for the RecoService configuration entry. All the RecoServices specified in the NodeName configuration entry are searched until the RecoType is found. Once the RecoService has been found, the name of the speech recognition plug-in is known, and the plug-in is used to pass the recognition request to the speech recognizer.
