When you load multiple samples into the NN-19, they're all assigned to the same root key, but no key zones are assigned. This means whatever key you press will trigger the currently selected sample, pitch-shifted as necessary.
With unpitched samples, the pitch-shifting may not seem like such a problem, but you still need to have separate keys triggering particular samples. So now let's set up the keyboard.
To set up unpitched key zones
With unpitched samples loaded in your NN-19 (if you haven't done this yet, see the preceding section), select Edit > Automap Samples to set up key zones for all loaded samples (Figure 6.41).
Figure 6.41. Automap samples to set up key zones quickly.
Disable keyboard tracking in the Osc section (Figure 6.42).
Figure 6.42. Disable the keyboard tracking feature so your samples all play back at their recorded pitches.
Now samples will play back at their recorded pitch, regardless of keyboard position.
Save your patch as rhythm-SFX in a location you'll remember, so we can come back to it.
To alter a pitch with keyboard tracking off, select the sample and adjust the Rootkey knob to the left for lower pitch, or to the right for higher (Figure 6.43).
Figure 6.43. Set the root key of a sample by turning the Rootkey knob.
To hear a ranged sample transposed to another tone, enable the Solo Sample button (Figure 6.44). Then audition using your master keyboard or by Alt-clicking (Win) / Opt-clicking (Mac) the sample map display keyboard.
Figure 6.44. The Solo Sample button shuts off all but the selected sample. With keyboard tracking on, it lets you audition a sample at multiple pitches using the keyboard.
Troubleshooting: Wrong Pitch
Pitch problems with unpitched samples can occur if you forget to turn keyboard tracking off. The symptom: low keys "squeak," and high keys "growl." Often the play speed is so out of range that there is little or no sound at all.
This occurs because Automap assigns unpitched samples a root key of C3 (in the middle of the keyboard), so they may be pitch-shifted on playback. To fix it, simply change the sample's root key.
You may want to leave key tracking on when, for example, you want to use the keyboard to transpose an unpitched sample; otherwise, though, it's not recommended.