10.6

167Logic Pro Instruments
3. Click the source select field for source A, and choose Import Audio from the pop-up
menu.
The Import window opens.
4. Open the Apple Loops browser, and type “Basic Vintage Break” in the search field. Drag
the Vintage Funk Loop 03 file from the Apple Loops browser to the Dropzone area of the
Import window.
Note that the original tempo of this file is 100 BPM and that it is 8 beats (2 bars) long.
5. Click the Spectral and Formant analysis mode buttons at the lower left, then click the
Import button.
This determines the synthesis engine used for resynthesis of the audio sample. Spectral
+ Formant is a good general purpose option that works well for drum loops. It’s also the
default setting in a new instance of Alchemy. When analysis is complete, you can trigger
the loop at its native pitch and speed by playing C3 on your keyboard. Playing other
pitches transposes the loop, but retains the tempo.
6. Set the Speed knob in the source main controls section to zero percent (full left).
This stops the loop from playing forward in time and repeats the first few samples at the
current position.
7. Hold a note and rotate the Position knob to hear how playback is affected.
The Position knob moves playback forward and backward through the loop. Set the
value to zero percent (full left).