Unrecognized function or variable in app designer

Question

Luqman Hadiwinata 2022-5-24

0
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https://ww2.mathworks.cn/matlabcentral/answers/1725990-unrecognized-function-or-variable-in-app-designer

评论： Luqman Hadiwinata 2022-5-24

Hello, so in this case, i'm trying to make an app that receive an audio file as input and then said file will be processed by DTFT to find its noise. However, when i try to read the audio using audioread, the log says that my variable (fullpathnames) is unrecognized. Any idea how or why this happens? Here's a snippet from my code in app editor:

% Callbacks that handle component events

methods (Access = private)

% Button pushed function: MasukkanFileSuaraButton

function MasukkanFileSuaraButtonPushed(app, event)

[file, folder] = uigetfile({"*.*"; "*.wav";"*.mp3";"*.ogg"}, 'File Selector');

fullpathnames = fullfile(folder, cellstr(file));

end

% Button pushed function: SuaraAsliButton

function SuaraAsliButtonPushed(app, event)

[x, Fs] = audioread(fullpathname);

sound(x, Fs)

end