public static void singleAppVolumeControl() { AudioSessionManager ASM = new AudioSessionManager(); int ans = 99; int tPid = 99; string proceed = "n"; ASM.updateActiveAudioSessions(); ASM.displayActiveAudioSessions(); do { Console.Write("enter application number from above list: "); } while (!(int.TryParse(Console.ReadLine(), out ans))); tPid = ASM.getActiveAudioSessions().ElementAt(ans).ProcessId; float vol; do { Console.Write("enter the volume as a percentage(0-100): "); } while (!(float.TryParse(Console.ReadLine(), NumberStyles.Number, CultureInfo.InvariantCulture.NumberFormat, out vol))); VolumeMixer.SetApplicationVolume(tPid, vol); Console.WriteLine("Volume has been Set!"); Console.Write("Press Enter to continue......"); proceed = Console.ReadLine(); }