boxcar (Rechteck)
  blackman
  hamming
  hanning

» freqz ( fir1( 32, 0.5, boxcar(33) ) );

» freqz ( fir1( 32, 0.5, blackman(33) ) );

» freqz ( fir1( 32, 0.5, hamming(33) ) );

» freqz ( fir1( 32, 0.5, hanning(33) ) );

» freqz ( fir1( 32, 0.5, bartlett(33) ) );