private void MuteOtherChannels()
{
for (int i = 0; i < 16; i++)
{
if (i != i_PersistentChannel)
{
// sending all-sounds-off command to channel
outputDevice.Send(new ChannelMessage(ChannelCommand.Controller, i, (int)ControllerType.AllSoundOff, 0));
}
}
}