用matlab的app designer做一个语音信号处理系统

好的，下面是一个简单的语音信号处理系统的 MATLAB App Designer 示例：

1. 创建新的 App Designer 应用程序。

2. 在布局编辑器中，添加一个音频录制器组件和一个按钮。

3. 在按钮的回调函数中编写代码，以开始录制并执行信号处理操作。

以下是示例代码：

classdef VoiceProcessingApp < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure         matlab.ui.Figure
        RecordButton     matlab.ui.control.Button
        AudioRecorder    audiorecorder
    end

    % Callbacks that handle component events
    methods (Access = private)

        % Button pushed function: RecordButton
        function RecordButtonPushed(app, event)
            % Start recording
            record(app.AudioRecorder);

            % Wait for recording to finish
            while isrecording(app.AudioRecorder)
                pause(0.1);
            end

            % Get recorded audio data
            audioData = getaudiodata(app.AudioRecorder);

            % Perform signal processing operation
            processedData = mySignalProcessingFunction(audioData);

            % Plot processed data
            plot(app.UIAxes, processedData);
        end
    end

    % App initialization and construction
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)
            % Create UIFigure
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'Voice Processing App';

            % Create RecordButton
            app.RecordButton = uibutton(app.UIFigure, 'push');
            app.RecordButton.Position = [290 225 100 22];
            app.RecordButton.Text = 'Record';
            app.RecordButton.ButtonPushedFcn = createCallbackFcn(app, @RecordButtonPushed, true);

            % Create AudioRecorder
            app.AudioRecorder = audiorecorder;
        end
    end

    % App startup and termination
    methods (Access = private)

        % Startup function
        function startupFcn(app)
            % Set up UIAxes
            app.UIAxes.XLabel.String = 'Time (s)';
            app.UIAxes.YLabel.String = 'Amplitude';
            app.UIAxes.Title.String = 'Processed Audio Data';
        end

        % Close request function
        function closeRequestFcn(app, event)
            % Stop recording if still in progress
            if isrecording(app.AudioRecorder)
                stop(app.AudioRecorder);
            end

            % Delete AudioRecorder object
            delete(app.AudioRecorder);

            % Delete UIFigure object
            delete(app.UIFigure);
        end
    end

    % Component initialization
    methods (Access = private)

        % Create all components and initialize app
        function createComponentsAndInitialize(app)
            createComponents(app);
            startupFcn(app);
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = VoiceProcessingApp

            % Create UIFigure and components
            createComponentsAndInitialize(app);

            % Register the app with App Designer
            registerApp(app, app.UIFigure);

            % Execute the startup function
            runStartupFcn(app, @startupFcn);

            % Enable app window resizing
            app.UIFigure.AutoResizeChildren = 'on';
        end

        % Code that executes before app deletion
        function delete(app)
            % Delete UIFigure when app is deleted
            delete(app.UIFigure);
        end
    end
end

4. 编写信号处理函数 mySignalProcessingFunction，例如对录制的声音数据应用滤波器。

5. 运行应用程序并按下“Record”按钮以开始录制。录制完成后，将应用程序显示的处理后的音频数据绘制到 UIAxes 中。

希望这可以帮助你开始创建你自己的语音信号处理系统。