title: Noise recognition in Powershell
body: <p>I want to collect the activity times from a machine which has no Interfaces to record the running Actions via wire. But I could put a PC with microphone close to that machine and listen to the microphone. If a certain noise Level is reached would indicate the activity, then record the timestamp until noise disappears. </p>
  
  <p>Does anyone have an idea whether this is possible in Powershell and how to do it?</p>