10.6

150Logic Pro Instruments
Alchemy also offers resynthesis which uses the additive or spectral synthesis engines,
or a combination of the two, along with optional formant control. Resynthesis, put simply,
analyzes a source audio file and reconstructs a facsimile of this sound using sine waves
and noise signals. You can then manipulate these reconstructed elements to create
new presets. The additive engine is well suited for single notes with a strong harmonic
character. The spectral engine is suitable for chordal material and other complex signals. In
many cases, you will achieve the best results by combining the two synthesis engines. This
lets you manipulate the resynthesized source more precisely, playing to the strengths of
each synthesis method.
1. In Logic Pro, choose advanced view and click the source B select field, then choose
Import Audio from the pop-up menu to open the Import browser window.
2. Click the Preview button to enable or disable automatic preview of selected files.
3. Click the Sampler button to choose the import analysis mode.
If the audio data is imported to the additive, spectral, add+spectral, or granular
elements, analysis may take a moment or two. No analysis occurs when the Sampler
analysis mode button is active.
4. Choose Alchemy Samples > Strings > Single Samples > Strings Mid, then click the
Import button.
The Import browser closes when the import is complete, and the previous window is
displayed.
5. Click the Global button (if not active), then adjust the Vol knobs of source A and B to
hear an electric piano/string layer.
6. Repeat for sources C and D, using different analysis modes and the same or different
samples.
An import progress dialog is shown when import methods other than Sample are used.
The Import browser automatically closes when the import is complete.