资源简介
这里主要是对声音信号进行分析。因为Matlab在数字信号处理上的便捷,又有功能强大的工具箱辅助设计,所以我们可以利用Matlab完成声音信号频谱分析和时序分析的设计。本次设计内容包括:
1) 信号的获取
2) 时域分析:包括频率,振幅,相位,周期,均值,峰值等
3) 频域分析:主要分析波形的幅值、相位与频率的关系
代码片段和文件信息
function varargout = temp(varargin)
% TEMP M-file for temp.fig
% TEMP by itself creates a new TEMP or raises the existing
% singleton*.
%
% H = TEMP returns the handle to a new TEMP or the handle to
% the existing singleton*.
%
% TEMP(‘CALLBACK‘hobjecteventDatahandles...) calls the local
% function named CALLBACK in TEMP.M with the given input arguments.
%
% TEMP(‘Property‘‘Value‘...) creates a new TEMP or raises the
% existing singleton*. Starting from the left property value pairs are
% applied to the GUI before temp_OpeningFunction gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to temp_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
% Copyright 2002-2003 The MathWorks Inc.
% Edit the above text to modify the response to help temp
% Last Modified by GUIDE v2.5 21-Oct-2010 13:04:37
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct(‘gui_Name‘ mfilename ...
‘gui_Singleton‘ gui_Singleton ...
‘gui_OpeningFcn‘ @temp_OpeningFcn ...
‘gui_OutputFcn‘ @temp_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 temp is made visible.
function temp_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 temp (see VARARGIN)
% Choose default command line output for temp
handles.output = hobject;
% Update handles structure
guidata(hobject handles);
% UIWAIT makes temp wait for user response (see UIRESUME)
% uiwait(handles.figure1);
str=‘signals‘;
set(gcf‘name‘str‘numbertitle‘‘off‘); %§
% --- Outputs from this function are returned to the command line.
function varargout = temp_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;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2011-05-23 09:57 作业_张少林2\
文件 359900 2010-10-18 18:47 作业_张少林2\b.wav
文件 8300 2010-10-21 13:21 作业_张少林2\temp.fig
文件 20447 2010-10-21 13:31 作业_张少林2\temp.m
文件 5120 2010-10-21 13:38 作业_张少林2\Thumbs.db
文件 45 2011-05-23 09:57 作业_张少林2\说明.txt
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