Point to a particular time index in a recording


When creating relationships with recordings. pointing to a certain time index (or a set of indexies) could come in handy to say things like:

The guitar solo at time index 2:24-2:45 was a guest performance by [artist]


The sample used at time index 1:23-4:56 & 7:12-8:34 was originaly published in the recording [recording] at time index 2:24-2:45

there already is a tagging standard for chapter marks within audio files and relatively common in podcasts and supportet by players.

the interface to add this might look painfully complicated :grin:


This wouldn’t work, because a MusicBrainz “recording” can be linked to many tracks of different length. :disappointed:


While this is true, the time difference should actually be not very large or it is not the same recording anymore. So in general this should still work in most cases. Only if there is e.g. a significant silence added at the beginning of one track the times would be off, of course.

Or this gets implemented per track somehow, which would of course complicate this thing even more :smiley:


Exceptions include sped up/slowed down audio. (Yes, they are the same recording according to our guidelines.)


Thanks for the info. I actually did not know this, and I find that rather weird :slight_smile:


Really? Could you post a link and citation? :confused:


Well, it’s in the style guideline for recordings:

Recordings of different durations can be merged, as long as there is no evidence to suggest that differences in mixing or editing have caused the change in lengths.

Variations in the length of silence at either end of tracks is not a reason to keep recordings separate, since no changes have been made to the audio itself. Similarly, different volume fades at either end of multiple tracks are not reasons to maintain separate recordings - they are considered mastering differences unless they cause the structure of the song to change. The same is true for variations in playback speed between recordings.


In this case the editor would be required to define the length of his reference recording :confused:


Thanks for the citation, @chirlu. It’s a little disturbing for me, though. :astonished:


This shouldn’t go for “extreme” variations, right? See the example:

The original recording Don’t Push appears on tracks which vary in length from 3:45 to 3:55 because they have been mastered at different speeds.

The fastest version is ~1.05 times faster than the slowest, similar to difference in mastering. A track with the same recording sped up 2 times with nothing else changed wouldn’t be perceived as the same recording, more like a remix (even if it isn’t).


Well, the guideline doesn’t give any limits.

Of course, “just” 1.05 is already quite a bit – almost a semitone (cf. PAL speedup).