Can I use snap markers in the audio to adjust tempo?

siegbrunn wrote on 2/18/2020, 10:18 AM

I've been using MEP (various years) for some time to adjust music playbacks for our students. I find MEP much easier than several other audio programs I have.
I am attempting to rearrange pieces of a playback where there are several measures that I am using more than once. The first time I'm using those measures there are unwanted ritards in them. I had marked one passage with snap markers and then thought, perhaps there is a way to set the length of the distance between markers and fit it to a grid with the tempo that I want. I hope someone can understand what I'm trying to explain.

Here is a jpg of what it looks like in one passage of the music. For one passage where the ritards come in, I've snapmarked the measures and you can see that some are longer than others. Resizing them individually is difficult if not tedious. I've had to chop this stretch into pieces with each measure as one piece and then adjust each measure with the "stretch" mouse setting..


Is there a way? Or am I fantasizing (pun intended)? I hope that it's possible with my software (MEP Pro Premium Can you explain to me how this would work? Thank you in advance.



CubeAce wrote on 2/18/2020, 11:50 AM


I may be wrong but I don't think it's possible. there is not enough automation in the Audio mixer of MEP to achieve this. There is certainly no way I can think of for laying down key frames for this.

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siegbrunn wrote on 2/18/2020, 12:36 PM


Nuts. Thanks for reading it anyway. BTW I do have as well MAGIX Video Sound Cleaning Lab 2014 (which I just stumbled on in my storage), as well as Audacity, and Adobe Audition. My Audition is current, but I don't even know where to start with the problem and I think working into the problem with Audition will take me quite a while, time which I don't have. I think I'll just have try to do it by hand.

browj2 wrote on 2/18/2020, 1:12 PM



You could probably do it in Samplitude Pro X_ by adjusting the tempo at the ritards as it will identify tempo changes if appropriately marked. What you want to do is rather complex. The snap markers in MEP are used for lining up other objects, like videos and photos. As Ray noted, there is no way to get a speed curve (timestretch) for an audio object that I could find, and even if you could, it would be difficult because you want instantaneous changes, not gradual changes.

However, I have an idea that may help. If you can get an audio object(B) that has the BPM that you want, say 120, and you can get snap markers on it, then line it up with the audio object (A) at the beginning. Where you have the ritard snap markers on B, cut on them at each side as you are doing now. Use the stretch mouse mode and drag the right end of A towards the left until it snaps to the correct marker on object B. Move the right side to close the gap, and continue on. This way, you can get the duration of the ritards easily changed to the desired duration just by using the snap markers of object B for alignment. Remove object B when done.

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siegbrunn wrote on 2/18/2020, 1:23 PM

That sounds really interesting.

I do not have Samplitude (although I find it tempting) but the other idea sounds very interesting. I just need to get a BPM sample. (That's for tomorrow. Now it's time to make dinner) :) I like your thinking - kind of out of the box.