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Confusion on tempo curves not working

677 Views 13 Replies Latest reply: Feb 18, 2013 6:26 AM by kcstudio RSS
TroyCampfield14 Calculating status...
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Jan 24, 2013 3:54 PM

Do tempo curves not work for mp3s in Logic? I'm trying to make a mix for a party and I can't get the tempo to change like it should. The transition would sound great with a tempo change. Am I doing something wrong, or is it the program?

Logic Pro
  • Data Stream Studio Level 4 Level 4 (3,150 points)
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    Jan 24, 2013 5:48 PM (in response to TroyCampfield14)

    use the copy/convert command to make the file into an aif or wave.

  • kcstudio Level 4 Level 4 (1,580 points)
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    Jan 24, 2013 11:17 PM (in response to Data Stream Studio)

    Logic does the conversion automatically on import, no?

    Anyways, maybe this helps:

    http://youtu.be/ObBHdigd0Gc

  • Data Stream Studio Level 4 Level 4 (3,150 points)
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    Jan 25, 2013 9:15 PM (in response to TroyCampfield14)

    Is the "follow tempo" box checked on the region?

  • kcstudio Level 4 Level 4 (1,580 points)
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    Jan 25, 2013 11:11 PM (in response to TroyCampfield14)

    If you're aiming to slow down the audio, as opposed to MIDI, then, I think, tempo curve is not the way to go.

    To manipulate tempo of audio you better try Flex Time or Varispeed.

     

    Have a nice day!

  • The Art Of Sound Level 5 Level 5 (5,650 points)
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    Jan 28, 2013 8:11 PM (in response to TroyCampfield14)

    See KCStudio's last post....

  • Data Stream Studio Level 4 Level 4 (3,150 points)
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    Jan 28, 2013 8:58 PM (in response to TroyCampfield14)

    Was the region not recorded in logic? I'm pretty sure that if you bounce the region in real time with "add to audio bin" checked in the bounce dialog, it will put the needed time markers on the file to have follow tempo as an option.

  • gen_ Level 2 Level 2 (335 points)
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    Feb 17, 2013 12:21 PM (in response to TroyCampfield14)

    If you want to change the tempo of a single track without changing the project, Flex Time is the ONLY way. Logic is not designed to have multiple tempos running concurrently on the same project and as a result you will fail any other way. Logic also isn't DJ software, you would be much better off trying to create a mix using Virtual DJ or other free software. The easiest way to do this would be to set Logic's tempo to that of the current track then create a flex marker at the point that you mix the next track in, and on every beat after thathit flex time so that your track is fixed to Logics BPM, then change the project to the BPM of the next track. and line them up. You will now have to use flex markers to change the tempo of the first track by hand over time to that to its original, speeding it up as it gets closer to the next track.

     

    The other way you could do this if you know your target tempo is to create a new project with it set to the current track's BPM, hit Flex Time and once it's on use the standard tempo curve to get your tempo from the orignial to the right place, then bounce out the file and import it in to a 'composition file' with all your tracks in it.

     

    Hope this helps

  • kcstudio Level 4 Level 4 (1,580 points)
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    Feb 17, 2013 12:19 PM (in response to TroyCampfield14)

    I'm not in a position to give you an answer at the moment, but I promise you will get a detailed explanation from me tomorrow.

     

    Regards.

  • kcstudio Level 4 Level 4 (1,580 points)
    Currently Being Moderated
    Feb 18, 2013 6:26 AM (in response to TroyCampfield14)

    In response also to your original mail, the mp3 question has been answered and to give you an explanation of tempo curving in Logic I will assume that the audio tempo should change gradually over time without affecting the pitch.

    Let's go:

     

    - With Logic up and running open for instance  <New…..>

                                                <Produce>

                                                <Stereo Master>

     

    then

     

    - open <Global Tracks> and choose Tempo

     

    CTCP01.png

     

    - insert audio you want to manipulate on to track 1 and activate <Flex>

     

    - Hit Cmd I to open the inspector

     

    - in the Track Parameter Box choose next to Flex Mode -> Polyphonic and also check <Complex> underneath it

     

    CTCP02.png

     

    - go to <Options>

                <Tempo>

                    choose <Tempo Operations>

     

    CTCP03.png

     

    See screenshot to get started

     

    CTCP04.png

     

    - alternatively you can also edit the tempo curves with your mouse.

     

    CTCP05.png

     

    - You can now BIP this track and do whatever you want with it.

     

    Trying to manipulate two different audio  tracks with different tempo curves at the same time, needs a different approach and although possible, is very slow, complicated and therefore inefficient in Logic.

     

    Have a nice day!

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