Change Volume on Mac programmatically

Question

I'm looking for a not applescript way to change the system volume on Mac OS X programmatically. I just couldn't find a solution. Anyone any ideas?

[This tutorial](http://cocoadev.com/SoundVolume) might be of assistance. — Shadikka, Jun 08 '11 at 12:23

score 9 · Answer 1 · answered Aug 09 '14 at 15:20

9

Take a look at this class:

https://github.com/InerziaSoft/ISSoundAdditions

It can change system volume and make use of CoreAudio API.

An example of usage should look like this:

[NSSound setSystemVolume:0.5]

answered Aug 09 '14 at 15:20

MrAsterisco

797
8
21

Thank you so much! This works with Yosemite unlike all the other libraries. – Matt Privman Aug 25 '14 at 19:34
1

Thanks for sharing... is there a way to capture volume change as an event? I.e. the user changes the volume on the menu bar and my app wants to know. – mojuba Aug 06 '15 at 18:52
Is it possible use Java to do that?? – hcarrasko Nov 28 '15 at 02:21

score 4 · Answer 2 · answered Jan 03 '20 at 12:38

In case anybody is still interested in this topic: I have adapted the great ISSoundAdditions to Swift 5 and have also made its design a bit cleaner by declaring a public interface (NSSound.systemVolume)through which you can super easily manage the system sound volume through getting and setting properties (NSSound.systemVolume and NSSound.systemVolumeIsMuted). Check it out: https://github.com/mabi99/NSSound_SystemVolumeExtension

Change Volume on Mac programmatically

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