Oops. Forgot to mention that you need the User Event plug-in.
You can get it here on the plug-ins page http://www.promixis.com/downloads.ph...er&lucCode=800
Once you download it and enable it, go to the "Delay Event" command and choose the User Event plug-in. Go into the settings and check the "delay this event" box and enter the amount of time you'd like for it to listen for speech commands, and type "disable girderspeech" (without quotes) in the Event String box at the top. Then go to the "Speech Disable" command and in the drop-down box next to the "Learn Event" select "User Event" and type "disable girderspeech" (again, w/out quotes). You don't have to use "disable girderspeech", just as long as it matches whatever you typed in the Event String of the User Event plug-in, hence the name.
There are other ways to make a delay between commands but the others that I tried would cause the speech plug-in to pause during the delay, defeating the purpose for the delay in the first place.