10.6

312Logic Pro Effects
Logic Pro I/O utility
I/O utility lets you use external audio effects units in a similar way to the use of
internal effects.
Note: I/O utility is not practical unless you are using an audio interface that provides
discrete inputs and outputs, either analog or digital, that are used to send signals to
and from the external audio effects unit.
I/O utility parameters
• Output Volume slider and field: Adjust the level of the output signal.
• Output pop-up menu: Choose the output, or output pair, of your audio hardware.
• Input pop-up menu: Choose the input, or input pair, of your audio hardware.
Note: The Input pop-up menu is visible only when an audio interface with multiple
inputs is active.
• Input Volume slider and field: Adjust the level of the input signal.
• Latency Detection (Ping) button: Detect the delay between the selected output and
input. Following detection, any delay is automatically compensated for.
Note: You can obtain the most accurate reading by bypassing any latency-inducing
plug-ins on the track.
• Latency Offset slider and field: Displays the value for the detected latency between
the selected output and input in samples. You can also use this slider to offset the
latency manually.
• Dry/Wet slider and field: Set the balance between the direct and effected signal,
if effects are used.
• Format buttons: Choose between Stereo and Mid/Side in stereo instances.