#region VU meter

public void audiometering()
{
// start timer and select the volume value
vmt.Start();
MMDevice defaultDevice = devEnum.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
var volume = defaultDevice.AudioMeterInformation.MasterPeakValue;
var scale = (int)Math.Floor(volume * 20);
vUMonitorToolStripMenuItem.Text = volume.ToString();
// calculate scale of volume and display as pipes
var sb = new StringBuilder();
sb.Append('|', scale);
sb.Append(' ', 20 - scale);
vUMonitorToolStripMenuItem.Font = new Font(vUMonitorToolStripMenuItem.Font, FontStyle.Bold);

if ((scale <= 5))
{
vUMonitorToolStripMenuItem.ForeColor = Color.Green;
}
if ((scale >= 5 && scale <= 10))
{
vUMonitorToolStripMenuItem.ForeColor = Color.Yellow;
}
if ((scale >= 10 && scale <= 15))
{
vUMonitorToolStripMenuItem.ForeColor = Color.Orange;
}
if ((scale >= 15))
{
vUMonitorToolStripMenuItem.ForeColor = Color.Red;
}
vUMonitorToolStripMenuItem.Text = sb.ToString();
}
#endregion