Adding echo and flanger

through the online version of MATLAB i tryed to run the following code but there are errors

how can i solve it ?

load handel.mat
filename = 'handel.wav'
audiowrite(filename,y,Fs);
duration = 30; % in seconds
audioDelayEffectsExampleApp('echo',duration);
duration = 30; % in seconds
audioDelayEffectsExampleApp('chorus',duration);
duration = 30; % in seconds
audioDelayEffectsExampleApp('flanger',duration);
open_system('audiodelaybasedeffects')

[Geoff Hayes]

Maitha - what are the errors? There are some MATLAB Online limitations that might be related to the audio functions that you are trying to execute.

Answer 1

[Ajay Pattassery]

I mostly guess the following would have been the error.

Error using audioDeviceWriter/validatePropertiesImpl
No audio output device detected

Error in audioDeviceWriter/play

The app audioDelayEffectsExampleApp uses audioDeviceWriter to play the sound to the sound card. It belongs to Audio Toolbox and currently it is not supported in MATLAB Online.

I suggest you using a normal installed MATLAB version.Refer the following site for Installing MATLAB if you already not.

https://www.mathworks.com/downloads/web_downloads