one track that won't give a BPM result

Richard's Avatar


08 Jul, 2021 06:21 PM

Hello Hendrik:

I ran across one mp3 track that won't get a result when I run the BPM Analysis on it. I tried once when I added the track to the library originally last October. Just today, I noticed that it had no BPM, so I analyzed it again. Nothing. I tried once more. Still nothing. At that point, i uploaded my logs to you.

There doesn't seem to be anything unusual about the file. Nothing that I can see, anyway. The song isn't too short to be analyzed. It's over 4 minutes long. I listened to it to see if there is anything unusual (like having an extended silent section). There's nothing like that. I will attach the file to this post.

I have been reviewing my library yesterday and today, and running several Analyses on tracks that I find have no BPM and/or Key. I find that every now and then, those tags don't get written. All the other songs I've re-analyzed DO get the missing info added... a couple of hundred of them. That's why I am submitting this track to you: it isn't reacting like the others. I note that the other 9 tracks on this album processed routinely when I added them 9 months ago.

Thanks for your help!


  1. Support Staff 1 Posted by hendrik on 09 Jul, 2021 07:46 PM

    hendrik's Avatar

    Hey Richard,

    thanks for this. Apparently the FFmpeg decoder has issues with this track and complains with Invalid data found when processing input.

    My best (quick) guess is that the file is slightly malformed and can therefore not be fully analyzed.


  2. 2 Posted by Richard on 09 Jul, 2021 08:38 PM

    Richard's Avatar

    OK, thanks for looking into it.
        On Friday, July 9, 2021, 02:46:32 PM CDT, hendrik <[email blocked]> wrote:


  3. 3 Posted by Richard on 09 Jul, 2021 08:59 PM

    Richard's Avatar

    I should have added, analysis also did not give the song a Color (with Use Online Resources checked), but it did give the song a Key (Online Sources not checked) and a Mood when I did this all originally
    When I reanalyzed just now with BPM Online Sources checked, it did retrieve a BPM and MPM. So I guess that bypasses the Invalid Data error and just retrieves the value from the online source.
    When I reanalyzed just now for Color (Online Sources not checked... the opposite of before), it still did not give a Color, which is probably to be expected in this case.

        On Friday, July 9, 2021, 03:37:45 PM CDT, Richard Patton <[email blocked]> wrote:

      OK, thanks for looking into it.
        On Friday, July 9, 2021, 02:46:32 PM CDT, hendrik <[email blocked]> wrote:


  4. Support Staff 4 Posted by hendrik on 11 Jul, 2021 02:16 PM

    hendrik's Avatar

    Thanks for the additional information. It makes sense.


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