【语音处理】基于matlab GUI语音原始信号+变速信号时域频域分析（带面板）【含Matlab源码 294期】

一、语音处理简介

MATLAB GUI是用户与计算机或计算机程序的接触点或交互方式,是用户与计算机进行信息交流的方式。图形用户界面（Graphical User Interfaces,GUI）则是由窗口、光标、按键、菜单、文字说明等对象（Object）构成的一个用户界面。用户通过一定的方法（如鼠标或键盘）选择、激活这些图形对象,使计算机产生某种动作或变化,比如实现计算、绘图等。本设计基于MATLAB GUI技术,完成了语音信号处理的界面平台,可进行语音的选取、线性预测分析（LPC）、语谱图、频谱等相关波形的显示。这样可以更直观、更方便地分析和处理语音信号,得到用户需要的实验结果。
具体理论知识参考：基于MATLAB GUI的语音处理界面设计

二、部分源代码

unction varargout = zuoye(varargin)
% ZUOYE MATLAB code for zuoye.fig
%      ZUOYE, by itself, creates a new ZUOYE or raises the existing
%      singleton*.
%
%      H = ZUOYE returns the handle to a new ZUOYE or the handle to
%      the existing singleton*.
%
%      ZUOYE('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ZUOYE.M with the given input arguments.
%
%      ZUOYE('Property','Value',...) creates a new ZUOYE or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before zuoye_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to zuoye_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 zuoye% Last Modified by GUIDE v2.5 03-Jan-2022 17:00:59% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...'gui_Singleton',  gui_Singleton, ...'gui_OpeningFcn', @zuoye_OpeningFcn, ...'gui_OutputFcn',  @zuoye_OutputFcn, ...'gui_LayoutFcn',  [] , ...'gui_Callback',   []);
if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});
endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
elsegui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT% --- Executes just before zuoye is made visible.
function zuoye_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 zuoye (see VARARGIN)% Choose default command line output for zuoye
handles.output = hObject;% Update handles structure
guidata(hObject, handles);% UIWAIT makes zuoye wait for user response (see UIRESUME)
% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = zuoye_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 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 = cellstr(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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global x;
global fs;
global bits;
global file;
clear sound;
if nargin<1;action='initialized';end;
[fname,pname]=uigetfile('*.wav','Open Wave File');
file=[pname,fname];
[x,fs,bits]=wavread(file);       % 读入声音文件（*.wav）
sound(x,fs);
set(handles.edit1,'string',fs); % --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%画原信号时域波形
global x;
global w;
global fs;
axes(handles.axes1);
N=length(x);
t=[0:1:N-1]/fs;
plot(t,x);
xlabel('时间t')
ylabel('幅值')
n=[0:N-1]';
w=2*n*pi/N;% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%画原信号时域波形
global x;
global w;
X=fft(x);
axes(handles.axes2);
plot(w/pi,abs(X))
axis([0,2,0,500])
xlabel('归一化')
ylabel('幅值')% --- Executes on button press in pushbutton4.% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global pitch
global nFrames
axes(handles.axes2);
xt=1:nFrames;
xt=20*xt;
plot(xt,pitch)
xlim([0,3]);
axis([xt(1) xt(nFrames) 0 max(pitch)+50]);
ylabel('基音频率/HZ');
xlabel('时间');% --- Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton6 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global ybiansu;
global fs;
axes(handles.axes1);
N=length(ybiansu);
t=[0:1:N-1]/fs;
plot(t,ybiansu);
xlabel('时间t')
ylabel('幅值')% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global ybiansu;
NS=length(ybiansu);
nS=[0:NS-1]';
wS=2*nS*pi/NS;
YH=fft(ybiansu);
axes(handles.axes2);
plot(wS/pi,abs(YH))
axis([0,2,0,500])
xlabel('归一化')
ylabel('幅值')% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton8 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%画重采样时域波形
global x2;
global fs;
axes(handles.axes1);
N=length(x2);
t=[0:1:N-1]/fs;
plot(t,x2);
xlabel('时间t')
ylabel('幅值')% --- Executes on button press in pushbutton9.
function pushbutton9_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton9 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global x2;
X2=fft(x2);
NS=length(x2);
nS=[0:NS-1]';
wS=2*nS*pi/NS;
axes(handles.axes2);
plot(wS/pi,abs(X2))
axis([0,2,0,500])
xlabel('归一化')
ylabel('幅值')function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: edit 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

三、运行结果

四、matlab版本及参考文献

1 matlab版本
2014a

2 参考文献
[1]韩纪庆,张磊,郑铁然.语音信号处理（第3版）[M].清华大学出版社，2019.
[2]柳若边.深度学习:语音识别技术实践[M].清华大学出版社，2019.
[3]宋云飞,姜占才,魏中华.基于MATLAB GUI的语音处理界面设计[J].科技信息. 2013,(02)

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