Design three bandpass digital filters, one with a central frequency of 770 Hz, a sec- ond of 852 Hz,

Design three bandpass digital filters, one with a central frequency of 770 Hz, a sec- ond of 852 Hz, and a third of 941 Hz. For the first filter, the stopband edges are at frequencies 697 and 852 Hz. For the second filter, the stopband edges are 770 and 941 Hz. For the third filter, the edges are at 852 and 1209 Hz. In all three filters, the minimum stopband attenuation is 40 dB and use Q s = 8 kHz.