title: Linux sine wave audio generator
body: <p>I want to use my laptop as sinus generator under linux. But I have not found a program that can generate sound. Can someone tell me the right program or script for it. Thank you.</p>
  
  <p>PS: I don't want use wine for it.
  PS2: I found this: "aoss siggen" and "speaker_test". But first ncurses based and second can not generate a continuous signal. May be you know more?</p>