【基础处理】基于matlab GUI语音信号播放【含Matlab源码 946期】

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二、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

三、部分源代码

function varargout = Gui1_6(varargin)
% GUI1_6 MATLAB code for Gui1_6.fig
%      GUI1_6, by itself, creates a new GUI1_6 or raises the existing
%      singleton*.
%
%      H = GUI1_6 returns the handle to a new GUI1_6 or the handle to
%      the existing singleton*.
%
%      GUI1_6('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUI1_6.M with the given input arguments.
%
%      GUI1_6('Property','Value',...) creates a new GUI1_6 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Gui1_6_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Gui1_6_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 Gui1_6% Last Modified by GUIDE v2.5 22-Sep-2020 22:43:04% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...'gui_Singleton',  gui_Singleton, ...'gui_OpeningFcn', @Gui1_6_OpeningFcn, ...'gui_OutputFcn',  @Gui1_6_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 Gui1_6 is made visible.
function Gui1_6_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 Gui1_6 (see VARARGIN)% Choose default command line output for Gui1_6
handles.output = hObject;% Update handles structure
guidata(hObject, handles);
set(handles.slider1,'value',0);
% UIWAIT makes Gui1_6 wait for user response (see UIRESUME)
% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = Gui1_6_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 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 h; h=handles;
global mytimer;
start(mytimer);
global m;
global pyr;
m=0;
global m1; global m2;
m1=1;m2=0;
global abc;
global Fs;
Fs=44100;
global pyr;
[pyr,Fs]=audioread(abc);
sound(pyr,Fs);   %声音回放%n=length(pyr);
% pyr1=fft(pyr,n);
% A1=abs(pyr1)/(n/2);
% f=linspace(0,Fs/2,n/2);
% plot(handles.axes3,f,A1(1:n/2));% --- 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)
global abc;
global Fs;
global pyr;
Fs=44100;
[FileName,PathName] = uigetfile('*.mp3','Select the audio-file');
abc=fullfile(PathName,FileName);
set(handles.edit1,'String',abc);
[pyr,Fs]=audioread(abc);%声音读取
plot(handles.axes1,pyr);
%显示音频的时间；
global t;global num;
t=length(pyr(:,1))/Fs;
num=length(pyr(:,1));
t1=sprintf('%.1f',t);
set(handles.edit4,'string',t1);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% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global abc;
global Fs;
global num;
a=100*get(handles.slider1,'value');
%s2=sprintf('%.1f',a); set(handles.edit3,'String',s2);
%v2 = str2double(s2);
v2=a;
v2=round(v2);
num1=round(num);
if(v2<=10)

四、运行结果

五、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)