I suspect you will also get some false positives with big budget movie musical scoring. For example, some tracks of the "Titanic"(*) movie use instruments that are supposed to sound like voices. Unless you want a lot of subtitles saying "aaaaaahhhh", more advanced filtering or access to a soundtrack without the music would be required.

(*) "Take Her to Sea, Mr. Murdoch" by James Horner

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In reply to Re^2: Adjust synchronizations of video and subtitles automatically by temporal distribution by cavac
in thread Adjust synchronizations of video and subtitles automatically by temporal distribution by LanX

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