title: Fast Fourier Transform Javascript
body: <p>I need a FFT function like the FFT in <code>numpy</code> (python) that takes only ONE list( length doesnt necessarily need to be power of 2).</p>
  
  <p>I used <code>dsp.js</code> but it needs the Buffer size and buffer size <strong>must</strong> be power of 2 but my data length is 500.</p>
  
  <p>is there any library that isnt audio exclusive ? 
  or should I add <code>0</code> to end of array ?</p>