If language groups are used

You can have multiple tracks and output channels with the same label. If multiple tracks have the same label, AppCenter evaluates where to map the tracks as follows:

• An output channel’s primary and secondary output labels are considered together as a “language group” when assigning an audio track for playout. If two channels have the same primary label but have different secondary labels, then those channels have different language groups. For example, a channel with labels FRE+ GER is considered a different language group than a channel with labels FRE + ENG.
• Each output channel, in order from first to last, is evaluated to determine if the label or language group matches a labeled audio track in the clip. The first channel with a label or language group that matches the track label plays that audio track. If the clip has several audio tracks with the same label, the first matching output channel plays the first audio track, the second matching output channel plays the second audio track, and so on.
• The Play Silence box. If the AppCenter does not find a matching label or language group for the output channels, and the Play Silence box has been checked in Configuration Manager, the channel plays silence. Otherwise, if AppCenter finds no match, the output channel plays the correspondingly numbered audio track.

This evaluation process is further described in the following sections:

• If the primary output alone is labeled
• If both primary and secondary outputs are labeled
• If no output labels match the track labels
• If Play Silence if checked
• If Play Silence is not checked