<input type="radio" name="IR_FilterMethod" value="fft">FFT (Fast Fourier)<br>
<input type="radio" name="IR_FilterMethod" value="fftw">FFTW (Fastest Fourier Library)<br>
<input type="radio" name="IR_FilterMethod" value="fft">FFT (Fast Fourier)<br>
<input type="radio" name="IR_FilterMethod" value="fftw">FFTW (Fastest Fourier Library)<br>