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Guide - Sync lyrics

Manual lyrics/audio synchronization form

What this form is for

Here you match each line of the lyrics to the exact moment in the audio when it is sung, "tapping the beat" by ear while the song plays. The result is a synchronized subtitle file (SRT), which the Create video form then uses to overlay the text on the video.

Why do it by hand instead of automatically: on MIDI-based tracks the timing isn't always natural (no guide vocal, or a "mechanical" one), so a manual alignment done by ear turns out more precise than an automatic one.

Audio and lyrics

Load the MP3 file (the one generated by the MIDI → MP3 conversion form) and the text file with one line per verse of the song.

Practical convenience: if a .txt file with the same name already exists in the same folder as the MP3, it is loaded automatically. So it's a good idea to save the song lyrics with the same name as the audio file, so you don't have to select it by hand every time.

An automatic line "Outro - Fine" is always added at the end of the list, used to mark the point where the sung lyrics end and the song continues instrumentally.

How to synchronize (Play + spacebar)

Press Play: the audio starts and the current line stays selected in the list. Every time you press the spacebar at the exact moment the next line starts (is sung), the program:

closes the current line, marking the end time at the point where you pressed spacebar;
opens the next line 1 second before that point (a small fixed lead-in, not adjustable, so as not to "eat" the beginning of the sung word): so press spacebar exactly on the vocal attack, not early, otherwise the line will appear too soon;
automatically scrolls the list to keep the active line always visible.

Why it works this way: you don't have to click anything while listening, just keep the beat with the spacebar: it's the fastest way to synchronize an entire song in a single listen. When you reach the second-to-last line, the same gesture also automatically closes the "Outro - Fine" line up to the end of the song.

Correcting a point (click on the line)

If a line turns out wrong, click with the mouse on that line in the list: playback automatically jumps to the start point already assigned to that line (or to the nearest synchronized line, if the one you clicked doesn't have one yet) and resumes from there.

Why it's useful: clicking on a line resets all synchronizations after that point: you can then resume tapping the beat with the spacebar from there, without having to redo the synchronization from the start of the song every time you make a mistake near the end.

Export (SRT / LRC)

Once synchronization is complete, export the result: both files are saved in the same folder as the MP3, with the same name as the audio file (only the extension differs).

Which format to choose: always export SRT if the next step is Create video - that form automatically detects the .srt file with the same name as the MP3 and proposes it on its own. LRC is only needed if you need the synchronized lyrics for an external music player that supports it, not for video creation.

Warning: only lines with both a start and an end assigned are exported to SRT (lines left "empty" because they weren't synchronized are skipped). Check that you've synchronized the whole song, "Outro - Fine" included, before exporting.