Matlab does not record audio
8 views (last 30 days)
Show older comments
Maciej Kaczorek
on 1 Feb 2021
Answered: Sindhu Karri
on 4 Feb 2021
I am working on the macOS Mojave 10.14.6, I am running the following code to record a short audio waveform:
recObj = audiorecorder(44100,16,1);
disp('Start speaking.');
recordblocking(recObj, 3);
disp('End of Recording.');
play(recObj);
y = getaudiodata(recObj);
plot(y)
Matlab does not record anything. The output of a plot(y) function is just a straight line y = 0. Moreover, Matlab doesn't ask for a permission to access microphone and I am not able to grant this permission in the system_preferences/privacy because the permission table doesn't contain Matlab. I tried opening the software from the terminal. Is there any way to configure it manually?
1 Comment
Walter Roberson
on 1 Feb 2021
(Note to readers: this is a MacOS specific question that applies for Catalina, Mojave, and Big Sur.)
Accepted Answer
Sindhu Karri
on 4 Feb 2021
There is an issue with the preferences granted in Mac OS. As of now, the only workaround to the issue is to open MATLAB from the terminal without using the "open" command. For most users this will look as (doc):
/Applications/MATLAB_R2019b.app/bin/matlab
0 Comments
More Answers (0)
See Also
Categories
Find more on Startup and Shutdown in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!