Nuance Management Center

Dragon Installation Guide
MSI options for scheduled tasks
Note: Take the following actions on the client computer. Do not perform them on the computer where
you performed the initial installation and configured default option settings.
You can include an additional option on the command line to run one or more of the following tasks on a particular
schedule:
l Acoustic model optimization (ACO)—This task optimizes the acoustic models used to interpret the user’s
speech. You can set a particular date and time for this optimization to occur. When a speaker is new to Dragon,
you might want to run the optimization more often.
l Language model optimization (LMO)—This task optimizes the language model (vocabulary files) used to help
recognize words that the end-user speaks. The model incorporates data from the end-user’s speech into the
language model he or she is using, customizing the model for that user profile.
l Data collection (DC) — This task automatically collects data that helps improve Dragon’s ability to recognize
speech. You can choose to allow this data to be sent back to Nuance over the Internet on a particular schedule or
choose not to send the data. This process does not collect your personal information. Data collection is available
in non-US English versions of Dragon Group.
Note: When NMS is enabled, you cannot schedule Data Collection tasks on the Dragon client
machines. administrators can schedule Data Collection in the NMC console. See “Turning on data
collection for your site” in the Nuance Management Server Administrator Guide for details.
You can schedule the above tasks and turn them on or off by passing an option called PERIODIC_TASK to the MSI
installer.
First, set PERIODIC_TASK to a string containing short acronyms for the types of tasks, separated by vertical bars:
aco | lmo | dc
If you do not pass the acronym for a feature, that feature is set to its default.
Next, the string for PERIODIC_TASK should include the administrator login and password, followed by the schedule
for each task, in the order that they occur in the string, separated by vertical bars.
l Enter the day(s) of the week for each task using three-letter abbreviations (Mon, Tue, etc.).
l Enter the hour using a 24-hour clock in the format hh:mm (05:00, 18:30, etc.).
For example, the string below sets the schedule for Acoustic Model Optimization to Mondays at 1 AM and the
Language Model Optimization to Mondays at 6 AM:
PERIODIC_TASK="aco|lmo;admin;pswd;Mon, 01:00|Mon, 06:00"
The task runs once a week on the day and time indicated. If you omit the Day, the task runs every day at the time
given. Because no schedule is specified for Data Collection, the default schedule will be used (Stand-Alone only).
Default Schedules
l Acoustic model optimization (ACO) — Every day, 3 AM
l Language model optimization (LMO) — Every day, 2 AM
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