title: Fast Fourier transformation in Java
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3287518/reliable-and-fast-fft-in-java">Reliable and fast FFT in Java</a>  </p>
  </blockquote>
  
  
  
  <p>i want to implement a fast fourier transformation calculation in java. Is there any library in java to do calculation in fourier transform and i also want to know about the audio libraries in java.</p>