资源简介
我们的一次课程设计,用matlab实现。在Matlab中,可以利用函数fft对信号进行快速傅立叶变换,得到信号的频谱特性,要求学生首先画出语音信号的时域波形,然后对语音信号进行频谱分析
代码片段和文件信息
function varargout = gangbadai(varargin)
% GANGBADAI M-file for gangbadai.fig
% GANGBADAI by itself creates a new GANGBADAI or raises the existing
% singleton*.
%
% H = GANGBADAI returns the handle to a new GANGBADAI or the handle to
% the existing singleton*.
%
% GANGBADAI(‘CALLBACK‘hobjecteventDatahandles...) calls the local
% function named CALLBACK in GANGBADAI.M with the given input arguments.
%
% GANGBADAI(‘Property‘‘Value‘...) creates a new GANGBADAI or raises the
% existing singleton*. Starting from the left property value pairs are
% applied to the GUI before gangbadai_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to gangbadai_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 gangbadai
% Last Modified by GUIDE v2.5 17-Nov-2012 12:26:04
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct(‘gui_Name‘ mfilename ...
‘gui_Singleton‘ gui_Singleton ...
‘gui_OpeningFcn‘ @gangbadai_OpeningFcn ...
‘gui_OutputFcn‘ @gangbadai_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 gangbadai is made visible.
function gangbadai_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 gangbadai (see VARARGIN)
% Choose default command line output for gangbadai
handles.output = hobject;
% Update handles structure
guidata(hobject handles);
% UIWAIT makes gangbadai wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = gangbadai_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 b
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 19387 2012-11-19 11:07 gangbadai.m
文件 278528 2012-11-15 14:34 数字信号处理课程设计报告2012.doc
文件 12657 2012-11-17 12:27 gangbadai.fig
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