Tapis FIR Fase Linier Simetris-Genap Untuk Sinyal Audio Digital

Antarmuka GUI MATLAB ini dapat dipakai untuk laboratorium sinyal bagi mahasiswa dan untuk menunjang penelitian bagi para peneliti. Anda bisa memesannya pada form pemesanan di bawah ini.

KODE UNTUK SALAH SATU EVENT CALLBACK:

% --- Executes on button press in Tipe_2.
function Tipe_2_Callback(hObject, eventdata, handles)
% hObject    handle to Tipe_2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global x;

% Membaca semua koefisien tapis parallel
h3 = str2num(get(handles.h3,'String'));
h4 = str2num(get(handles.h4,'String'));
h1 = str2num(get(handles.h1,'String'));
h2 = str2num(get(handles.h2,'String'));
h0 = str2num(get(handles.h0,'String'));
h6 = str2num(get(handles.h6,'String'));
h5 = str2num(get(handles.h5,'String'));
h7 = str2num(get(handles.h7,'String'));
h8 = str2num(get(handles.h8,'String'));
h9 = str2num(get(handles.h9,'String'));
h10 = str2num(get(handles.h10,'String'));
h11 = str2num(get(handles.h11,'String'));

h = [h0 h1 h2 h3 h4 h5 h6 h7 h8 h9 h10 h11];

%Menghitung tipe-2
M = length(h); n = 0:M-1;
[Hr,w,a,L] = Hr_Tipe2(h);
length(n),L

amax = max(a)+1; amin = min(a)-1;
axes(handles.axes7);
stem(n,h,'color','r'); axis([-1 2*L+1 amin amax])
set(gca,'color',[0,0,0]);
xlabel('n'); ylabel('h(n)'); title('Tanggapan Impuls')

axes(handles.axes8);
stem(1:L,a, 'color','r'); axis([-1 2*L+1 amin amax])
xlabel('n'); ylabel('a(n)'); title('koefisien-koefisien a(n)')
set(gca,'color',[0,0,0]);

axes(handles.axes9);
plot(w/pi,Hr,'color','r');grid
xlabel('frekuensi dalam unit pi'); xlabel('Hr')
title('Tanggapan Amplitudo Tipe-1')
set(gca,'color',[0,0,0]);

% Menghitung Hasil Penapisan
y = conv(double(x),double(a), 'same');

axes(handles.axes2); 
t = 0:length(y)-1;  %vektor indeks
stem(t,y,'linewidth',1,'color','y');title('Keluaran Tapis')
set(gca,'color',[0,0,0]);

axes(handles.axes3)
specgram(y, 8, 8);
title('Spektrum Sinyal');
set(gca,'color',[0,0,0]);