AudioChannelLabelUnknown (An analysis was unable to be completed because it was not able to determine audio channel labels)
Unable to determine audio channel labels.
Our inspections were unable to determine the audio channel labels for your audio file's configuration/layout. This is typically due to an abnormal and incorrect channel configuration/layout being provided (e.g. a 4-channel delivery).
Re-encode the file using a properly labeled channel configuration supported within our delivery specifications.