【音频处理】基于matlab GUI音频信号处理【含Matlab源码 299期】

一、简介

基于matlab GUI音频信号处理平台：打开、播放、保存、回音、回响、倒放、复位、滤波、变调、音量调整、速率调整、滤波器参数选择等多功能处理。
二、源代码

function varargout = yonghujiemain(varargin)
% YONGHUJIEMAIN M-file for yonghujiemain.fig
%      YONGHUJIEMAIN, by itself, creates a new YONGHUJIEMAIN or raises the existing
%      singleton*.
%
%      H = YONGHUJIEMAIN returns the handle to a new YONGHUJIEMAIN or the handle to
%      the existing singleton*.
%
%      YONGHUJIEMAIN('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in YONGHUJIEMAIN.M with the given input arguments.
%
%      YONGHUJIEMAIN('Property','Value',...) creates a new YONGHUJIEMAIN or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before yonghujiemain_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to yonghujiemain_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help yonghujiemain

% Last Modified by GUIDE v2.5 03-Jun-2011 16:50:18

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @yonghujiemain_OpeningFcn, ...
                   'gui_OutputFcn',  @yonghujiemain_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{
    
    1})
    gui_State.gui_Callback = str2func(varargin{
    
    1});
end

if nargout
    [varargout{
    
    1:nargout}] = gui_mainfcn(gui_State, varargin{
    
    :});
else
    gui_mainfcn(gui_State, varargin{
    
    :});
end
% End initialization code - DO NOT EDIT


% --- Executes just before yonghujiemain is made visible.
function yonghujiemain_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to yonghujiemain (see VARARGIN)

% Choose default command line output for yonghujiemain
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes yonghujiemain wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = yonghujiemain_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{
    
    1} = handles.output;


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


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


% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns popupmenu1 contents as cell array
%        contents{
    
    get(hObject,'Value')} returns selected item from popupmenu1


% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


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


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


% --- Executes on selection change in popupmenu2.
function popupmenu2_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns popupmenu2 contents as cell array
%        contents{
    
    get(hObject,'Value')} returns selected item from popupmenu2


% --- Executes during object creation, after setting all properties.
function popupmenu2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in insert.
function insert_Callback(hObject, eventdata, handles)
% hObject    handle to insert (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global  fn x Fs bits;
[fn,dirpath]=uigetfile('*.wav');
[x,Fs,bits] = wavread(fn);
t=(0:length(x)-1)/Fs;            
plot(handles.axes1,t,x);              
legend('Waveform');
xlabel( 'Time(s)');
ylabel('Amplitude');   
xlength=length(x);
y=fft(x,xlength);
Pyy =y.*conj(y)/xlength;
f = 22050*(0:(xlength/2))/xlength;
plot(handles.axes2,f,Pyy(1:xlength/2+1));
title('Frequency content of y');
xlabel('frequency (Hz)');

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

% --- Executes on button press in save.
function save_Callback(hObject, eventdata, handles)

% hObject    handle to save (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global x;
[filname,pathname]=uiputfile('.wav');
wavwrite(x,22050,8,filname);



% --- Executes on button press in radiobutton1.
function radiobutton1_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton1


% --- Executes on button press in radiobutton2.
function radiobutton2_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton2


% --- Executes on button press in fuwei.
function fuwei_Callback(hObject, eventdata, handles)
% hObject    handle to fuwei (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global  fn x Fs bits;
[x,Fs,bits] = wavread(fn);
t=(0:length(x)-1)/Fs;            
plot(handles.axes1,t,x);              
legend('Waveform');
xlabel( 'Time(s)');
ylabel('Amplitude');   
xlength=length(x);
y=fft(x,xlength);
Pyy =y.*conj(y)/xlength;
f = 22050*(0:(xlength/2))/xlength;
plot(handles.axes2,f,Pyy(1:xlength/2+1));
title('Frequency content of y');
xlabel('frequency (Hz)');


% --- Executes on button press in daofang.
function daofang_Callback(hObject, eventdata, handles)
% hObject    handle to daofang (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global   x Fs ;
i=1:length(x);
j=length(x):-1:1;
x_reversal(j)=x(i); %实现声音数据颠倒
t=(0:length(x)-1)/Fs;            
plot(handles.axes1,t,x);              
title('original signal');
xlabel( 'Time(s)');
ylabel('Amplitude');   
plot(handles.axes2,t,x_reversal);              
title('reversal signal');
xlabel( 'Time(s)');
ylabel('Amplitude'); 
x=x_reversal;
三、运行结果

在这里插入图片描述
四、备注

【音频处理】基于matlab GUI音频信号处理【含Matlab源码 299期】

一、简介

二、源代码

三、运行结果

四、备注

猜你喜欢
