title: Ruby gem for microphone and speaker
body: <p>I'm working on a program for group audio chat on a local network(which helps students in a classroom to talk in random group, not always the students next to them).</p>
  
  <p>It just went smoothly til I can not find a gem to get access to the Microphone and Speaker. Some one suggests I could win32 api on windows, or some shell command on Linux. But I hope that I can do it with ruby if possible.</p>
  
  <p>Could someone give me a solution base on ruby gem to get access to the microphone and speaker?
  If I miss any necessary detail for you, please let me know.</p>
  
  <p>Thanks in advance.</p>