ECHO_MONITOR
m_pEG->MixerControlChanged(ECHO_MONITOR,MXN_LEVEL,wBusIn,wBusOut);
m_pEG->MixerControlChanged(ECHO_MONITOR,MXN_MUTE,wBusIn,wBusOut);
m_pEG->MixerControlChanged(ECHO_MONITOR,MXN_PAN,wBusIn,wBusOut);