There are two basic ways of changing options used by the Media Server. The first is to edit a file
called media_server.conf that is put into
C:\Program Files\Lumenvox\config\ in Windows by default. In Linux, you would edit the media_server.conf file in /etc/lumenvox/.
The values specified in this file will be used by the Media Server when it is first started and will
apply to all recognitions unless overwritten as part of the MRCP request. All of the
Server Specific Parameters must be set in the configuration
file and cannot be modified without restarting the server.
The MRCPv2 specification allows for MRCP sessions to include, as part of a RECOGNITION or SET-PARAMS
method, changes to MRCP parameters that apply to that session. The parameters that are part of the
standard are outlined in Streaming Media Properties and
may be set either via configuration file or as part of the session.
LumenVox has also extended the MRCPv2 specification with a number of vendor-specific parameters. Much
like the standard parameters, these can be set in either the configuration file or as part of a RECOGNITION
or SET-PARAMS method. These vendor-specific parameters are documented in
If you are used to working with VoiceXML or the LumenVox Speech Engine API, we also have a document
that can guide you in how various
VXML/API properties correspond with MRCP properties.