Amaros

Q: Logic X Out of tune bug

I work with Logic Pro X every day since it has been released and noticed a very strange bug with both audio and software instruments (MIDI):

After saving and reloading a project Logic Pro X randomly plays audio files out of tune. It is not affecting every track, but some. I checked everything: sample rate, interface (Presonus StudioLive 16.0.2). The strange thing is: after stopping playback, starting, stopping again and starting again and opening the track in the sample window, playing it back there and so on.....everything works just fine.

 

Today the same with MIDI:

 

I saved a track some days ago. Today I reopened it. Just piano. Logic Pro X starts to insert false notes and some, not all, notes are out of tune. I checked the arrangement in the piano roll, score and event list. Everything is fine. No controllers, nothing. I even switched to another instrument and internal audio. Same result. I then moved the region to a new track (external MIDI) and played it back over USB and a ROLAND Juno-Di. Perfect. After that I exported the region as a MIDI file and imported it back to the same software instrument track were it was before. Everything works fine.

 

That's strange, isn't it?

The last two updates didn't correct this bug - and I really think it is a bug, because it happens to new songs and imported songs (from L9), but never happens in L9.

 

No third party plug-ins are involved! Just Logic! I checked that before.

 

I wrote a bug report for Apple and hope they will do something about it.

 

Anyone else with this bug?

iMac, OS X Mountain Lion (10.8.4)

Posted on Aug 23, 2013 2:45 AM

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Q: Logic X Out of tune bug

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  • by The Art Of Sound,

    The Art Of Sound The Art Of Sound Dec 8, 2014 9:28 AM in response to grdh20
    Level 6 (12,107 points)
    Dec 8, 2014 9:28 AM in response to grdh20

    grdh20 wrote:

     

    . .  and therein lies the problem. 

     

    Well, kind of.....

     

    The problem really is, people think these are Apple supported forums and so expect Apple to respond here....

     

    When in fact the best way to resolve issues that other Users cannot help with here.. is to contact Apple directly....

     

    http://www.apple.com/contact/

     

    The catch to doing that is, if you are not covered by Applecare agreements or it's outside the initial period of support for any App you bought... you may have to pay for that direct help... and people don't want to pay.

     

    The other option is to make an appointment with the nearest Apple store for the Genius Bar but not every Apple Store has a Logic Pro expert... and so the level of help you might get, can vary wildly.

     

    That is why Users congregate here and try to help each other..... but there are some issues that no one can really help.. when it comes to confirmed bugs or Apple's policies...  so complaining here about such things.. just falls on deaf ears... because we are not Apple

     

    For more info on this subject....

     

    Why doesn't Apple answer the questions that we ask about Logic Pro?

     

    and more helpfully.....

     

    How to effectively report a bug in Logic Pro

     

    I personally report bugs via the Dev's system as explained via that last link... as you do then often get feedback on what you have reported...  though the quality of that feedback can vary from a detailed response to a simple "Okay.. It;'s being investigated" type of reply. But it's often a lot better than the 'non' feedback you get from using the official Logic Pro Feedback form.

  • by steveurick,

    steveurick steveurick Dec 8, 2014 3:17 PM in response to The Art Of Sound
    Level 1 (0 points)
    Dec 8, 2014 3:17 PM in response to The Art Of Sound

    Thanks for the clarification and useful information. The notion that this was only a site for users was in the back of my head, but you laid things out nicely. That does not mean that my frustration with Apple is zero, but I will stop banging my head against the wall now...

  • by The Art Of Sound,

    The Art Of Sound The Art Of Sound Dec 8, 2014 6:35 PM in response to steveurick
    Level 6 (12,107 points)
    Dec 8, 2014 6:35 PM in response to steveurick

    No problem Steve,

     

    Many of us here, bang our heads on regular occasions thanks to some of the things Apple do..... or don't do... so you are not alone!

     

    On a side note, if you sample the sound of mass head banging here, it can provide a nice rhythmic backdrop to certain soundtrack pieces.........

     

     

     

    Cheers..

     

    Nigel

  • by steveurick,

    steveurick steveurick Jan 7, 2015 5:45 PM in response to Amaros
    Level 1 (0 points)
    Jan 7, 2015 5:45 PM in response to Amaros

    Well, in my case the problem appears to have been my controller. I had the problem on two different computers, with different projects. After changing my controller (Old, banged up Kurzweil) I have had no problems. I do not know what errant data was being sent, but folks with this problem may want to try changing their MIDI controller. So far, that has solved my problem.

  • by The Art Of Sound,

    The Art Of Sound The Art Of Sound Jan 7, 2015 5:49 PM in response to steveurick
    Level 6 (12,107 points)
    Jan 7, 2015 5:49 PM in response to steveurick

    Ah.. the good old "sticky' pitch bend controller.... where it doesn't always reset back to zero?

  • by steveurick,

    steveurick steveurick Jan 7, 2015 6:35 PM in response to The Art Of Sound
    Level 1 (0 points)
    Jan 7, 2015 6:35 PM in response to The Art Of Sound

    It could have been that. I could never find the corrupted data--I am far from an expert user of Logic. (Relatively an expert with regard to music performance...) Thanks again, and I just wanted to make a comment that may help someone, even if I don't have the exact diagnosis of the problem.

     

    Cheers!

  • by efe_tanman,

    efe_tanman efe_tanman Jul 5, 2015 10:16 PM in response to steveurick
    Level 1 (0 points)
    Jul 5, 2015 10:16 PM in response to steveurick

    i found the problem. Open "global tracks". You will see "chord".. this cause our problem. if you delete all chords, song will be crazy. i go back my yesterday's backup (because yesterday, i have no problem), and i see that no "chord" sectıon at "global tracks".. and problem fixed. i'm from turkey and sorry about my bad english!

     

    Efe Tanman

    Composer-Research Assistant

  • by efe_tanman,

    efe_tanman efe_tanman Jul 5, 2015 10:17 PM in response to steveurick
    Level 1 (0 points)
    Jul 5, 2015 10:17 PM in response to steveurick

    i found the problem. Open "global tracks". You will see "chord".. this cause our problem. if you delete all chords, song will be crazy. i go back my yesterday's backup (because yesterday, i have no problem), and i see that no "chord" sectıon at "global tracks".. and problem fixed. i'm from turkey and sorry about my bad english!

     

    Efe Tanman

    Composer-Research Assistant

  • by X-Bone,

    X-Bone X-Bone Oct 20, 2015 12:59 AM in response to Amaros
    Level 1 (0 points)
    Oct 20, 2015 12:59 AM in response to Amaros

    Try to disconnect the soundcard and then connect again... worked for me

    i have an M-audio fast track soundcard

  • by MBXJBZ,

    MBXJBZ MBXJBZ May 12, 2016 8:38 AM in response to X-Bone
    Level 1 (4 points)
    May 12, 2016 8:38 AM in response to X-Bone

    Umm.. So I don't blog very often but I figure I oughta return the favors I received from bloggers over the years, so for what ever it's worth..  I totally get how a mod wheel can mess with the midi notes on a track unintentionally, amidst other things..One quick fix I discovered, though once again a round about way.. Is just create a duplicate track with the same settings and drag the 'infected' midi down to it.. It's seemed to be an instant bypass for me, takes two seconds and I can move on.. Instead of crunching my mind in the middle of being on the zone.. Hope that tip helped whoever might read this.  That isue has happened to me a bunch and this tactic seems to be quick and easy if you don't mind having an extra track. 

  • by MBXJBZ,

    MBXJBZ MBXJBZ May 12, 2016 8:40 AM in response to MBXJBZ
    Level 1 (4 points)
    May 12, 2016 8:40 AM in response to MBXJBZ

    Just to clarify.. Create a duplicate track with the same settings, then simply pull your midi track from the bad track onto the new one.  Then move forward and enjoy making music again.

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