Clear Filters
Clear Filters

Audio volume level increases automatically when using record function in MATLAB?

5 views (last 30 days)
I have the Windows system volume set to 50%, but I see the volume automatically increase to around 100% when I use the record function in MATLAB. It returns back to the previous level only after I call the stop function.
% System volume is currently set to 50%
rec = audiorecorder;
record(rec); % System volume increases to close to 91%
stop(rec); % System volume returns back to 50%
Is there a way I can prevent this from happening?

Answers (1)

MathWorks MATLAB Hardware Team
Edited: MathWorks MATLAB Hardware Team on 29 Jun 2022
This is due to a Windows level system setting that adjusts the volume of different sounds when you are using the microphone.
To disable this setting:
  1. Go to Control Panel > Hardware and Sounds > Sound
  2. Go to Communication Tab in the "Sound" dialog window and select the option "Do Nothing"
  3. Click on OK


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!