Free Voice Control for Win7 MCE
An open source project called Simonsays offers a voice control for Win7 MCE via microphone to capture voice commands. Those commands are processed by Windows 7 Voice Recognition SDK. Currently hole project is a Python script hosted at Google Code. It has a limited dictionary of commands. But it should be enough to control playback or volume. You can install and configure Simonsays using that instruction.
[via ehomeUgrade]
