I know it's been a long time since, but I'm stuck trying to add chapter markers with thumbnails to my audio file. Are the thumbnails auto-generated by QuickTime based on its time or are they user selectable?
Do you actually mean AUDIO file and not video file? Or was that a typo?
Besides the Subler approach, I'd do as recommended in #2 and import the audio track into FCPX and then put the chapters where I want them. The export would be a video file with a blank screen video. Then I could open it in a number of apps and strip out the video track... or just leave it as a video file with no picture (black screen)... though I'm not so sure that Chapter Markers can exist without a video track to which to point.
I'm not sure if the chapters would be preserved by opening such a track in QuickTime and then saving it back out as "Audio Only." I would guess that would NOT work but it MIGHT. Update: tried this option and it does not work, so the FCPX method would be my way to do it... though Subler is free and the text file option will work too.
Update: I took a video with existing chapter markers, opened in Subler, deleted the video and 5.1 surround sound audio tracks, then saved as an audio track. That worked. But neither Quicktime or VLC will show Chapter marker options. If I open it again in Subler, the chapters track is still there. So this would make me believe that you could use the Subler append (chapter track names) method but being able to actually use them seems like it would be some audio player beyond Quicktime or VLC that will offer the chapter options as part of the playback system.
Obviously there is SOME way to attach something like Chapter markers to audio because one can import albums that flow songs together and the track identity of the song will change in the transitions. So there is an audio-track way without a video track... but those may not be called Chapter markers but something else.
Audacity offers some editing tools to
assign labels to tracks. However, it's unclear if this offers any benefit outside of Audacity. For the audio file I quickly made with Subler, importing it into Audacity to see if the chapters track would become Audacity labels did not work. Still it might be worth doing some simple experiments to see if that might be a way to get what is desired?
That same audio file would also import into MetaZ but MetaZ would not "see" the chapters track either.
Perhaps the audio cousin of FCPX- Logic Pro- offers a way? And possibly the podcast creation elements of GarageBand might offer something? Update: Found
this which may do the trick. And I see one OLD reference which may no longer be true that says one can create Chapter tracks for video or podcasts but not audio (only). If that's still true, making the audio track into podcast audio may be THE way... which- I believe- is basically also the FCPX way by baking in a still image(s) or blank image (video) track too.