Unmute Windows sound using WScript.Shell

How can I unmute the sound in Windows using Matlab?

In VBA this can be done using elegantly:

Dim WshShell
Set WshShell = CreateObject("WScript.Shell")
WshShell.SendKeys (Chr(&HAD))

But in Matlab I faild to use the method SendKeys to the method:

     f=actxserver('WScript.Shell')

The post of Yair Altman: http://www.mathworks.com/matlabcentral/fileexchange/25584-soundvolume-set-or-get-the-system-speaker-sound-volume does unfortunately not work either. Any help on this?

Patrice

[Daniel Shub]

What version of Windows are you using? How many and what types (i.e., internal, USB, firewire) of soundcards are you using?

[Patrice Tscherrig]

Win XP and Win7. I'm interested in the solution for both environments. It's just an internal soundcard. Again - in VBA the SendKeys method works well - but I fail to correctly call it in Matlab.

[Friedrich]

Youe posted code doesn't work for me in VBA (Excel 2010, Win 7). And it also doesnt work in VBS. Are you sure that this code works on Win 7 and XP the same way?

[Jan]

"Does not work" is not sufficient description of the problem with Yair's Java tool.