Tip: How to adjust song and sound speeds
Monday, July 30th, 2007Did you know that you can use Splice Studio to change not only the speed of your entire song, but also of individual clips? Here’s a little tutorial to help you master all the options you have now for speeds.
1. Changing your song’s BPM

The first thing you need to know is how to change the BPM of a song. BPM stands for Beats Per Minute; the higher this number is, the faster your song will go. If you click and drag up or down on the BPM in Splice Studio, your entire song will speed up or slow down accordingly.
2. Changing the speed of your sample.
The next great thing to know is that you can change the size of a single clip to make it faster or slower. This can be useful for making clips match speed. For instance, maybe you have some great drums that you want to speed up to match a vocal line you have. To change the size of your clip (and therefore, the speed) just click your sample so that you see the little white square at the end. Grab this square and drag left or right to change your sample’s speed.

3. Choose your sync.
When you change the speed of your clip, you have a couple of choices for how to sync it to the rest of your song. By default, the sound will sync via time stretching. What this means is that the clip will go faster or slower but the pitch will stay the same. For example - if this were a vocal sample, it would sound like you were simply speaking faster.
The other option is to sync by matching the pitch. Choosing this option will allow the pitch to change when you change the sample speed. For example - again, if this were a vocal sample, you could use this option to make someone sound like a chipmunk, or (if slowed) like a monster. This is just silly with voice but with something like a synthesizer, you can use this to get the melody in a different key, which can actually be useful. Syncing by pitch uses far less resources from your computer, also, which can help reduce skipping.
You may also choose not to sync the clip at all, and it will remain as it was uploaded.
To get to these different options, just double click the sample to pull up the sample editor. You will see the options on the left:

A little tip: This page is also where you can CUT a sample, too. That’s how people pull just one word out of a sampled sentence, for instance.
I hope that helps clear a few things up for you. Just think - now you can break your song down in the middle and go to half-time, and then speed back up again, all using the exact same samples. How fun is that?
