Comments on: Updating speaker sound volume

By: Yair Altman

Yair Altman — Thu, 01 Jul 2010 15:07:13 +0000

@Sebastian – yes: the program searched all the available controls in your computer’s speaker port’s Line object, and could not find any control that affects the volume. I suggest that you place breakpoints in the relevant loops (lines 53-65 and 81-92) to see why this is. For example, it is possible that you have more than one speaker ports in your system and the program searched the wrong port, or maybe you really don’t have programmatic access to the Volume control…

By: Sebastian Pape

Sebastian Pape — Thu, 01 Jul 2010 14:17:11 +0000

Hi!
I used that code but I got always the message:

??? Error using ==> SoundVolume2
Volume control not found

(with Win XP)

Do you have an idea what could be wrong?

Best Regards

By: Kostas

Kostas — Mon, 19 Apr 2010 22:24:51 +0000

Has anyone tried this code with Vista? The code runs, the input argument is stored, but the speaker volume is not affected.

By: Yair Altman

Yair Altman — Thu, 22 Oct 2009 23:34:17 +0000

Andrey – Since all of the SoundVolume functionality is Java-based, you can of course place it in a Java class, compile it, and load it into Matlab using javaObject or even directly.

This is a Matlab-centric blog, so I focus on how things can be done in Matlab. But of course they can also be done using other means. For example, calling an external executable utility or ActiveX that does the same thing…

By: Andrey

Andrey — Sun, 18 Oct 2009 17:34:17 +0000

Hi Yair!
As always, your posts are very interesting, thanks for this one.
What do you think about wrapping this kind of object in Java and loading it with ‘javaobject’?