Apple GarageBand 2.0 - Manual (Page 46)

46 Chapter 6 Working With Real Instruments
Changing the Input Channel
When you create a Real Instrument track, you set the input channel (for mono input) or
pair of channels (for stereo input). You can change these settings in the Track Info
window.
To change the input channel:
1 Select the track, then click the Track Info button to open the Track Info window.
2 Choose an input channel, or pair of channels, from the Input pop-up menu.
The number and format of input channels varies, depending on what type of audio
interface is connected to your computer.
Adjusting Input Volume
You can adjust the input volume for a Real Instrument track. The input volume controls
the level of the signal from the audio in port or audio interface into GarageBand. In
general, set the input volume as high as possible without causing clipping or distortion
for the best results.
To adjust the input volume:
1 Select the track, then click the Track Info button to open the Track Info window.
2 Drag the Volume slider left to lower the input volume for the selected channel, or drag
it right to raise the input volume.
Note: Dragging the Volume slider changes the input volume for the selected channel
in all audio applications, not just GarageBand.
You can also add and adjust effects for a Real Instrument track. For information about
using effects, see “Mixing and Adding Effects” on page 64.
Using the Instrument Tuner
GarageBand includes an instrument tuner that you can use to check the tuning of any
Real Instrument connected to your computer. The tuner is especially helpful when
playing and recording guitars, basses, and other instruments that may need regular
retuning.
The instrument tuner shows a horizontal scale with zero (0) in the center. The note
name is displayed to the left of the scale. When you play a single note on your Real
Instrument, the pitch is shown in relation to the correct pitch for the note displayed.