OptionalcontentOptions related to how TTS content is generated.
OptionaldefaultThe ReaderViewAnnotationLayer to use for calls to timeline.createDefaultMediaObjectRenderers().
OptionaldefaultThe ISyncMediaTtsContentBlockRendererOptions to use for calls to timeline.createDefaultMediaObjectRenderers().
OptionaldefaultThe TTS Synthesizer to use for calls to timeline.createDefaultMediaObjectRenderers().
OptionalnameThe name to use for the timeline.
The name is used by the framework when emitting syncMediaTimelineCreateProgress events to refer to which
timeline the event is related to.
If the name is left empty, the framework will generate a name for the timeline.
Options used when creating a TTS SyncMediaTimeline. See
EpubReaderPublication.createTtsSyncMediaTimelineandPdfReaderPublication.createTtsSyncMediaTimeline