Need to Stretch Midi File

Just change the project tempo. MIDI will follow the project's tempo. Its audio that needs to be stretched. 

Is there really no way to stretch a midi file from 80 measures to 160? I just need for someone to tell me it can't be done so I can start redoing the midi part.

That's what I thought too. There is something obvious I'm not seeing here. You see the project has audio clips so I can't change the tempo.

You didn't mention the audio tracks in the original post. That's a whole other ball of wax. 

triscuit


Is there really no way to stretch a midi file from 80 measures to 160? I just need for someone to tell me it can't be done so I can start redoing the midi part.

Process/Length should do it. Change to 200%.

WDI

triscuit


Is there really no way to stretch a midi file from 80 measures to 160? I just need for someone to tell me it can't be done so I can start redoing the midi part.

Process/Length should do it. Change to 200%.

How would it do it for a MIDI track??? In midi a measure is a measure, no matter what the length or tempo is.
No Processing could change a 80-bar MIDI track into a 160-bar one, AFAIK (???) Or have you actually tested that it works?

Kalle Rantaaho

WDI

triscuit


Is there really no way to stretch a midi file from 80 measures to 160? I just need for someone to tell me it can't be done so I can start redoing the midi part.

Process/Length should do it. Change to 200%.

How would it do it for a MIDI track??? In midi a measure is a measure, no matter what the length or tempo is.
No Processing could change a 80-bar MIDI track into a 160-bar one, AFAIK (???) Or have you actually tested that it works?

Yeah, it works. Make sure groove clip looping is not enabled for the clip. Then select the midi clip then choose Process/Length from the top menu items and change the "By:_Percent" value to 200 and check both "Start Times" and "Durations". 


EDIT:
Unless something has changed since Sonar 7.


Try it yourself and let me know what you happens.

rbowser

Kalle Rantaaho

WDI

triscuit


Is there really no way to stretch a midi file from 80 measures to 160? I just need for someone to tell me it can't be done so I can start redoing the midi part.

Process/Length should do it. Change to 200%.

How would it do it for a MIDI track??? In midi a measure is a measure, no matter what the length or tempo is.
No Processing could change a 80-bar MIDI track into a 160-bar one, AFAIK (???) Or have you actually tested that it works?

Incorrect, and WDI has twice explained that no copying and pasting is needed - you use Process/Length and ask for note start times and length to be doubled.  Obviously, this will make the clip play at half the speed as in the original clip, as Andypanda points out.

But the Length tool is a quick and easy way to change MIDI clips.  I use the process a lot, most often I use it for fast, tricky passages which I play at what is actually half the project tempo, then I shrink the clip by asking for start times and lengths to be reduced to 50% of the original.

I'm not sure if Triscuit really wants this MIDI track to play at half the time as the original, but he does say it's the wrong tempo and he need 80 measures to be 160 - if this is an accurate description of what he needs, this is the way to do it, and takes 2 seconds.

Randy B.

Yep. That was cleared three days ago.

Thank you very much to all that helped. Process/Length did just what I wanted. I knew there had to be a very easy solution, but I just couldn't put my finger on how to do it.

Hello everyone.
Concerning stretching midi tracks. Yes it can be done. This is how I did it except I reduced the track length.
In Sonar X1 loaded a Roland midi file titled TXPLASMA. It is a mess as is. The Tempo is marked 250.00.
However the actual meter of the music is 140.00. The notes are all out of alignment/sync with the bars.
Changing the Tempo to 140.00 caused the music to play too slow. After reading at this forum I did some tests.
Set the Tempo at 140.00. Then highlight all tracks. Next click on Process and select Fit to Time and set New Thru 
from 92:03:032 to 56:03:032 and click Ok. The notes are now more closely aligned/synced with the bars. 
The music also fits the Tempo of 140.00. The notes can now be Quantized and tweaked to perfection. 
The Fit to Time process works in fractions being more versatile than the Length feature which works in percentages.
This is a good method for syncing Midi to Audio or Video. Hope this helps. 

Welcome to the forum.
You can either
a. right-click the clip, select Edit>Copy then paste the clip after the original clip or
b. right-click the clip and select Groove Looping. The corners of the clip will become bevelled to show they are Groove Clips, then you can drag either end of the clip as far as you want and it will repeat.