How to programmatically set the system volume?

Question

How can I change the Windows System Sound Volume using a C# Application?

Answer 1

I'm a bit late to the party but if you are looking now there's a nuget package available (AudioSwitcher.AudioApi.CoreAudio) that simplifies audio interactions. Install it then it’s as simple as:

CoreAudioDevice defaultPlaybackDevice = new CoreAudioController().DefaultPlaybackDevice; Debug.WriteLine("Current Volume:" + defaultPlaybackDevice.Volume); defaultPlaybackDevice.Volume = 80;