Solve the problem using matlab.You are given three $10-$second pieces of music $($fs $=48000$Hz$).$ Perform the following assignment to rearrange the music according to the frequency distribution below.Apply appropriate filters to each of the three pieces of music to limit the bandwidth $($bonus points will be given for applying the filter coefficient calculation method used during class, not just simple MATLAB functions...$).$Shift the frequencies to be arranged as shown in the diagram below and combine them into a single signal.Confirm visually whether the frequency bands are as follows.The length of the filter should be odd. Code load MUSIC$\_$data.matsoundsc$($sound$($:$,1),$fs$)$; $\%$ MUSIC $1\%$soundsc$($sound$($:$,2),$fs$)$; $\%$ MUSIC $2\%$soundsc$($sound$($:$,3),$fs$)$; $\%$ MUSIC $3$NN $=2^20$; $\%$ DFT lengthff $=$ fs$*(0$:NN$/2)/$NN;kk $=$ linspace$(0,2*$pi$,$NN$)$;Xk $=$ fft$($sound$($:$,1),$NN$)/$NN;figure,subplot$(211),$ plot$($ff$/1000,$abs$($Xk$(1$:NN$/2+1))),$ gridxlim$([0$ fs$/1000/2])$xlabel$(\text{'}$Frequency $($kHz$)\text{'})$ylabel$(\text{'}$Magnitude$\text{'})$subplot$(212),$ plot$($kk$,$abs$($Xk$)),$ gridxlim$([0$ pi$])$xlabel$(\text{'}$Radian frequency $(\backslash$omega$)\text{'})$ylabel$(\text{'}$Magnitude$\text{'})$xticks$(0$:pi$/4$:pi$)$xticklabels$(\{\text{'}0\text{'}\text{'}\backslash$pi$/4\text{'}\text{'}\backslash$pi$/2\text{'}\text{'}3\backslash$pi$/4\text{'}\text{'}\backslash$pi$\text{'}\})$