SoundVolume - set or get the system speaker sound volume

SoundVolume sets or gets the computer system's speaker sound volume, using Java

Description

SoundVolume sets or gets the computer's system speaker sound volume
 
Syntax:
       volume = SoundVolume(volume);
 
SoundVolume(volume) sets the system speaker sound volume. The volume value should be numeric, between 0.0 (=muted) and 1.0 (=max).
 
volume = SoundVolume gets the current speaker sound volume (0.0-1.0).
 
volume = SoundVolume(volume) sets the system speaker sound volume and returns the previous volume value (from before setting the new value).
 
Note:
      SoundVolume relies on Java functionality that is fully supported and documented. In this respect, SoundVolume is different from some of my other Matlab-Java utilities that rely on undocumented code.
 
Bugs and suggestions:
      Please send to Yair Altman (altmany at gmail dot com)
 
See also:
      http://UndocumentedMatlab.com
      http://java.sun.com/docs/books/tutorial/sound

• MATLAB release: MATLAB 7.6 (R2008a)

[D Nguyen]

I used this to integrate it with a GUI slider to control the system volume. Worked great! Had to slightly modify te code..
ctrls(ctrlIdx).getType to ctrls(ctrlIdx).getType.toString..with Yair Altman's help to get it to work on my system. Windows XP with MATLAB 7.0.4.365(R14) SP2, but otherwise works fine!

[Jay Casey]

Yes, works perfectly but with the edition D Nguyen suggested! Thanks a lot!

[QurratulAin Rubab]

I want to do these functions for my final year project
and i have been searching for so long
finally found this code but it is giving this error when executed

??? Undefined command/function 'toChar'.

Error in ==> opaque.char at 94
    chr = toChar(opaque_array(1));

Error in ==> SoundVolume at 83
        if ~isempty(strfind(lower(char(ctrls(ctrlIdx).getType)),'volume'))

:((
plz help me..

[andandgui isler]

it doesn't work on my computer.. I want to control volume by using matlab but it didn't..

im using Matlab R2009b and Windows Vista..

can anyone help me?

[andandgui isler]

anyone knows the steps of this process?

[Trevor Agus]

 

[Reid]

I've had the same issue, but found a way around it.

In windows, open regedit, and select current user>control panel>sounds. Then select beeb and 'modify'. Where it says 'yes', type 'no' without quotes. Then just restart the computer. This turns off the beep for all applications, which works great for me, but may not be what you want.

[Joris Lambrecht]

Does this work in Windows 7? I tried with and without D Nguyen's modification without success.