How to Control Windows System Volume Using C#?

Controlling Windows System Volume with C#

This article aims to address a common problem of how to change the Windows System Sound Volume from within a C# application.

The Challenge:

Modifying the system volume programmatically allows applications to control audio settings, such as volume adjustments, without user intervention.

Proposed Solution:

To achieve this, the AudioSwitcher.AudioApi.CoreAudio NuGet package can be utilized. This package provides a simplified interface for audio interactions.

Implementation:

1. Install the AudioSwitcher.AudioApi.CoreAudio package using the NuGet Package Manager.

2. Create an instance of CoreAudioDevice to represent the default playback device:

   CoreAudioDevice defaultPlaybackDevice = new CoreAudioController().DefaultPlaybackDevice;

3. Get the current volume:

   Debug.WriteLine("Current Volume:" + defaultPlaybackDevice.Volume);

4. Set the desired volume:

   defaultPlaybackDevice.Volume = 80;

   This approach provides a straightforward and effective way to control system volume programmatically from your C# applications.

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