Printed material and information
Printed matter is generally considered to belong to the fine arts and not the useful arts, and consequently is generally not considered to be suitable subject matter for a patent application. Similarly, the mere presentation of information by generally any visual means, through spoken words or acoustic signals is considered not be patentable. Recorded information, which would presumably include digital representation of signals, is generally considered not suitable subject matter for a patent application.
However, if it can be argued that there is some material advantage to be had by the presentation of information, then your patent attorney may be able to draft an application that works around the patentability exclusion for printed material and information as such.
For example, a printed page having one or more spaces at fold lines so that the printing could be read when the page was folded was found to be patentable.