The Ambient Noise Controller 1 (ANC-1) window can be accessed by double clicking the ANC-1 in the Item column of the Layout or right clicking the Device and selecting Configure ANC-1.
Any settings that have been configured and need to be kept can be saved by using the Save button. Settings will not be saved to the Device unless a Send Configuration is performed after any adjustments have been made and saved.
The dropdown box found in the Program Source Selection window enables selection of the desired source channel to be referenced by the ANC-1. A Source Channel is defined as the audio channel that the ANC-1 will get its reference from, and can be one or many output device channels such as those from a VA-8600, VA-4300CV, VA-8150CV, VA-2060 or VA-4030 amplifier or a VO-4e.
An ANC-1 can be assigned to a single amplifier channel or grouped channels on the same chassis. For a source to populate the dropdown box, it must be assigned to an ANC-1 in the output devices General dialog window. Once a valid Output Device is selected the Available Sources of that device will be shown.
Note if the ANC-1 is being used in conjunction with Pilot Tone speaker line monitoring, and the pilot tone has been set within the audible range at a higher level than the Threshold value of the ANC, interference between the two processes may arise.