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Creating Pitched Sampler Instruments without affecting Sample Duration in Logic 9
Rounik Sethi on Thu, November 18th 12 comments
If you map one audio sample in Logic's EXS24 from C1 to C4 not only will you be able to create a pitched instrument, you will also notice the duration of the sample will be altered. The higher the pit

If you map one audio sample in Logic's EXS24 from C1 to C4 not only will you be able to create a pitched instrument, you will also notice the duration of the sample will be altered. The higher the pitch, the shorter and duration, the lower the pitch the longer the original sample will be stretched out. Now, while this may be what you wish to achieve, there will be times you want to create a pitched instrument without the speed up/slow down effect. There are 3rd party Samplers and applications that can do this, but here's one way to get this working in Logic 9.

01 - Start with a sound then repeat it

For this example I'm using a short sound of a crow from the Apple Loops library that comes with Logic studio. In order to create a pitched sounds without affecting duration, we're going to create multiple samples that are already pitched and import these into the EXS24.

Position your audio region on Bar 1 1 1 1 and choose Region > Repeat Regions

Because my region is so short I've chosen to repeat the region on every Beat. (Choose the correct Adjustment according to the length of your audio region). I've also chosen to create a one octave (12 note pitches) sampler instrument, again, create as many as you need.

02 - Pitch it

Insert the Pitch Shifter II plugin on an Insert slot. Set it's Mix to 100% and the Semi Tones to 0.

You can experiment with the Pitch Shift type (Drum, Speech and Vocals). I find Vocals works pretty well for most monophonic sounds.

03 - Selecting Automation

The idea here is for every region to be one Semi Tone higher than the previous one. Using Automation will make this easy to achieve.

Choose View > Automation and from the Automation Parameter Menu (in the Track Header) select PShift II > Semi Tone

04 - Creating Automation

Draw in the Automation for the Semi Tones parameter as shown in the image above. Click to create two nodes at the beginning of each region and drag the automation line up one step. It should resemble a staircase. If you need to create more than one octave, you can start from -12 Semi Tones up to +12. If you need more octaves, you can insert a second Pitch Shifter II on the channel strip.

You may find using the Marquee Tool a quicker way to create automation as explained in this article.

05 - Bounce in Place

Once you're finished creating the automation hide Automation view "A" and listen to the results. Now we need to render the effects to audio before importing these regions into the EXS24 Sampler. The easiest way is to click on the Track Header and then choose: Track > Bounce Track in Place

Make sure to disable the checkbox "bypass effects plugins" as we do want the pitch plugin automation rendered to the audio file.

06 - Multiple Divide

Now we have a single audio file. We need to divide the audio region into multiple regions, one for each pitched sound sample. Using the Scissor tool could take a long time to go through and split the regions. Alternatively,  to divide it into multiple regions of the same length, Option-click where you'd like the first cut to be as shown in the image below:

Once you release the mouse button, multiple regions will be created of the same length.

07 - Convert to Sampler Track

Select all the regions you have just created. (A quick way to do this is to click on the Track Header - all regions on the track, or within an active Cycle range, will be selected).

Next choose: Audio > Convert Regions to New Sampler Track

From the New Sampler Track dialogue window you'll need to set Create Zones From: Regions and set the Trigger Note Range as desired.

Click OK when you're done.

08 - Finishing Touches

The audio regions will be muted and a new Software Instrument Track is created with the samples already loaded into an EXS24 Sampler Instrument. As an additional bonus there is a MIDI region which corresponds to the Audio we converted on the above track. In this case, I'm not going to keep the region.

Test out your Sampler Instrument and you'll find the duration of the notes is constant. They are also pitched across the Note range you specified and even better, as a Sampler instrument it's easier to play and program sequences.

Comments (12)

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  • GaryHiebner
    Brilliant tutorial!
    • 8 years ago
    • By: GaryHiebner
    Reply
  • Rounik Admin
    Thanks Gary :)
    • 8 years ago
    • By: Rounik Admin
    Reply
  • yeah this is very helpful thanks
    • 8 years ago
    • By:
    Reply
  • Rounik Admin
    Thanks Steve!
    • 8 years ago
    • By: Rounik Admin
    Reply
  • Can this be done in Windows (PC) platform? If so, what are the DAW / software? Cubase? FL Studio? Thanks!
    • 7 years ago
    • By:
    Reply
  • Rounik Admin
    Hi (no name), The basic principle behind this technique should carry over to the PC platform and other DAWs. I'm not sure about Fruity Loops, as I don't know enough about it - but certainly Cubase, Sonar and the other big DAWs should be able to achieve this. Thanks.
    • 7 years ago
    • By: Rounik Admin
    Reply
  • Wicopye
    great tutorial if i wanted to create a pitched instrument using say a synth stab from a vengeance sound pack for example .. but didn't know the original pitch, could i use the pitch shifter to decide what pitch i want to start from and then go up or down from there ? or will it only go up or down from the samples original pitch ?? and if so, i don't suppose there are tutorials on how to determine the samples pitch ??? thanks in advance
    • 7 years ago
    • By: Wicopye
    Reply
  • Rounik Admin
    Hey Eddie, You're correct. If you use the Pitch Shifter it can't determine the pitch so just adds/subtracts the relative pitch in octaves. You can find the original pitch using something like the Guitar Tuner plugin to give you a rough idea. Then try creating a new software instrument track. Instantiate an EXS24 and use the default sine wave setting (or load in a piano) and play that to help you find the pitch of the sample. (Look in Logic's Transport bar to see which MIDI note pitch you are playing). Hope this helps Rounik
    • 7 years ago
    • By: Rounik Admin
    Reply
  • Wicopye
    Hi thanks for such a speedy response ! i will have a go at that when i am home. sounds like a simple enough way to achieve it, thanks very much i am trying to get my head round the exs24, mainly to create my own instruments.. but having trouble getting the notes to sustain, i know this is going off topic but finding people who help is hard to come across .. can you point me in the direction of a tutorial for this ?? or the correct terminology for me to run a good enough search in google many thanks
    • 7 years ago
    • By: Wicopye
    Reply
  • Rounik Admin
    Hi Eddie, I see... getting notes to sustain... well, depends how long the original sample is. You can set up loop points for audio samples in EXS24... and/or use the 'One shot' feature to play the length of the sample even once your finger has stopped triggering the note on the keyboard. I'd recommend the video tutorials here at macProVideo... the one on the EXS24 is here: http://www.macprovideo.com/tutorial/logic9102 But then if you're interested in stretching the original audio file and then bringing it in to the EXS24 (in order to sustain the note longer than the original) then you may be interested in time stretching (all covered in the Logic 101) but you can go more in depth with this video tutorial on Flex time: http://www.macprovideo.com/tutorial/logic9104 Personally, I'd recommend getting a one month online subscription so you can view ALL the videos (there's more on Logic than anywhere else!) - of course, feel free to ask away here or on the Logic Forums here: http://www.macprovideo.com/forum/logic/logic-pro-express Hope that helps :)
    • 7 years ago
    • By: Rounik Admin
    Reply
  • Wicopye
    hi thanks once again for your reply.. i will check them out now, i probably overlooked the logic 101 because i felt i had a good basic understanding of the DAW .. Guess i have just learnt a fundamental rule, you can never stop learning lol !! so back to basics ... thanks for your support !
    • 7 years ago
    • By: Wicopye
  • Rounik Admin
    No probs Eddie. I'd recommend the EXS24 tut... it's packed with useful info... and of course the 101 is massive in the content it covers too. Of course, let me know if you have any Qs on the forums. We're always around to help when we can :)
    • 7 years ago
    • By: Rounik Admin
    Reply
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