Date: 2022-4-10

前言

? ? 通過Matlab語言 GUI界面實現(xiàn)語音信號的采集、預處理阶淘、時域分析栽渴、頻域分析以及倒譜分析等處理所森。

1、Matlab GUI實現(xiàn)代碼

這里僅提供了語音采集的部分代碼夯接，需要完整代碼可以QQ（2963033731）聯(lián)系我焕济。

function varargout = Audio_Analysis_System(varargin)
% AUDIO_ANALYSIS_SYSTEM MATLAB code for Audio_Analysis_System.fig
%      AUDIO_ANALYSIS_SYSTEM, by itself, creates a new AUDIO_ANALYSIS_SYSTEM or raises the existing
%      singleton*.
%
%      H = AUDIO_ANALYSIS_SYSTEM returns the handle to a new AUDIO_ANALYSIS_SYSTEM or the handle to
%      the existing singleton*.
%
%      AUDIO_ANALYSIS_SYSTEM('C`ALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in AUDIO_ANALYSIS_SYSTEM.M with the given input arguments.
%
%      AUDIO_ANALYSIS_SYSTEM('Property','Value',...) creates a new AUDIO_ANALYSIS_SYSTEM or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Audio_Analysis_System_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Audio_Analysis_System_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 Audio_Analysis_System

% Last Modified by GUIDE v2.5 16-Apr-2019 19:49:16

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Audio_Analysis_System_OpeningFcn, ...
                   'gui_OutputFcn',  @Audio_Analysis_System_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 Audio_Analysis_System is made visible.
function Audio_Analysis_System_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 Audio_Analysis_System (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = Audio_Analysis_System_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;


% --------------------------------------------------------------------
function Untitled_3_Callback(hObject, eventdata, handles) %%語音采集
% hObject    handle to Untitled_3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

fs=44100;
uiwait(msgbox('開始錄音！'));%開始錄音對話框 
recorder=audiorecorder(44100,16,1);%設置采樣頻率盔几、采樣位數(shù)晴弃、通道數(shù)
recordblocking(recorder,4.0);%設置聲音記錄時間為 4s 
samples = getaudiodata(recorder);%存儲聲音數(shù)據(jù)“我愛你中國”
audiowrite('yuyin3.wav', samples,fs ); % 以yuyin2.wav 為文件名
uiwait(msgbox('錄音結束！'));%錄音結束對話框
handles.samples = samples;  %保存語音數(shù)據(jù)
handles.fs = fs;
axes(handles.axes1);
%ee=samples(1500:2000);  %選取原始文件x的第1500至2000點的語音
plot(samples,'k');title('原始語音信號');
xlabel('樣點數(shù)');ylabel('幅度');
guidata(hObject, handles);

2逊拍、實驗效果圖

1）上鞠、初始化界面：

image.png

image.png

3）加窗處理：

image.png

4）時域分析（短時過零率）：

image.png

5）頻域分析（短時頻帶方差值）：

image.png

6）倒譜分析：

image.png

image.png

THE END!