将这个代码做成gui界面，有两个按钮，一个为打开语音，显示原始波形，一个为语音增强，显示噪声波形和增强波形

好的，你可以尝试以下代码：

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

% Last Modified by GUIDE v2.5 28-Aug-2021 16:50:00

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

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = audio_gui_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 open_audio_button.
function open_audio_button_Callback(hObject, eventdata, handles)
% hObject    handle to open_audio_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Open the audio file
[FileName,PathName] = uigetfile('*.wav','Select the audio file');
if isequal(FileName,0)
    disp('User selected Cancel');
else
    handles.file = fullfile(PathName,FileName);
    guidata(hObject,handles);
    
    % Read the audio file
    [Input, Fs] = audioread(handles.file);
    Time = (0:1/Fs:(length(Input)-1)/Fs)';
    Input = Input(:,1);
    
    % Display the original waveform
    MAX_Am = max(abs(Input));
    axes(handles.original_waveform_axes);
    plot(Time, Input);
    ylim([-MAX_Am, MAX_Am]);
    xlabel('Time (s)');
    ylabel('Amplitude');
    title('Original waveform');
end


% --- Executes on button press in enhance_audio_button.
function enhance_audio_button_Callback(hObject, eventdata, handles)
% hObject    handle to enhance_audio_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Read the audio file
[Input, Fs] = audioread(handles.file);
Time = (0:1/Fs:(length(Input)-1)/Fs)';
Input = Input(:,1);

% Add noise to the audio signal
SNR = 10;
[NoisyInput, Noise] = add_noise(Input, SNR);

% Apply the spectral subtraction algorithm
[spectruesub_enspeech] = spectruesub(NoisyInput);

% Apply the Wiener filter
[wiener_enspeech] = wienerfilter(NoisyInput);

% Apply the Kalman filter
[Klaman_Output] = kalman(NoisyInput, Fs, Noise);

% Display the enhanced waveform and the noisy waveform
MAX_Am = max(abs(NoisyInput));
axes(handles.noisy_waveform_axes);
plot(Time, NoisyInput);
ylim([-MAX_Am, MAX_Am]);
xlabel('Time (s)');
ylabel('Amplitude');
title('Noisy waveform');

MAX_Am = max(abs(spectruesub_enspeech));
axes(handles.enhanced_waveform_axes);
plot(Time, spectruesub_enspeech);
ylim([-MAX_Am, MAX_Am]);
xlabel('Time (s)');
ylabel('Amplitude');
title('Enhanced waveform');

这个代码使用了MATLAB的GUI设计工具，创建了一个包含两个按钮和三个波形图的GUI窗口。其中，一个按钮用于打开音频文件并显示原始波形图，另一个按钮用于对音频文件进行增强处理并显示噪声波形图和增强波形图。注意，这段代码中使用的`add_noise()`、`spectruesub()`、`wienerfilter()`、`kalman()`等函数需要根据具体需求自行编写或调用相应的库函数，否则无法运行。