Time shrinking a midi file

[Zephyr]

What I'd like to do is not change the tempo of a midi file, but rather rearrange the notes in a file so that they are played twice as fast (ex: changing a melody of quarter notes into eight notes) I want to do this in FL Studio, basically I recorded something, but I'd like it to be played back at double the speed, but changing the tempo of my project would affect the whole song. Anyone know of an easy way to do this? I've been doing it by hand so far and it takes a looooong time.

[audio fidelity]

logic does this in the transform window - i don't know about any other daw

but you can send me the file and i'll do it for ya

[Zephyr]

Thanks for the offer, but this is something I'd like to be able to do on a regular basis.

I wish I knew of a method that simple for FL Studio though...

[PrototypeRaptor]

In FL you can hold SHIFT while all of the notes are selected and just drag a single note left and right like you were changing its length to scale all of the notes at once.

(Unfortunately, it's not quantized, so you get to mess with the notes at the end of the rescaling being off...)

[Zephyr]

Thanks! That's exactly what I wanted, works great, it's too bad about the quantize thing, but I can work around that.

[lazygecko]

I know a workaround with the exact results you're looking for. Go to the project settings and look for the time base (PPQ). The default should be 96. You'll want to change this to half of the original value, which in this case would be 48. When you look in the piano roll, you'll see that all the notes have been stretched down to 50%, and you'd get the impression they would then play faster. But FL will also play the project at half speed, so it's essentially the same. But if you copy all the patterns over to a new project, they will indeed play at double speed.

Holding shift to manually stretch the notes is also a nice feature, but as said there's the lack of quantization to consider, so much that you'd find yourself having to fine-tune the whole thing note by note.

[Zephyr]

I didn't have any trouble, I just shortened it to half it's size and did a quick quantize.