Apple Logic Pro 8 - Manual (Page 990)

990 Glossary
object The term is used to refer to the graphical representation of elements in the
Logic Pro Environment. These elements can be used to create and process MIDI data in
real time, and can even be used to create processing machines, such as virtual rhythm
generators or step sequencers. Examples of Environment objects include instruments,
multi instruments, faders and arpeggiators, amongst others. The Environment Mixer
layer contains objects that process audio data.
Object Parameter box The Object Parameter box displays the properties of any
selected Environment object.
offset The playback point in a source audio file can differ from the start point (anchor)
of the file. This is known as an offset or start point offset. Offset is also used in
conjunction with video time code, where the start time of the Logic Pro project and
QuickTime movie file can be offset (different) from each other. A further use of the term
is when the amplitude of a waveform is off-axis from the center line (due to a recording
error caused by hardware). This can be rectified with the DC Offset function in the
Sample Editor. See DC Offset.
OpenTL Abbreviation for Open Track List. This file format, typically used for data
exchange with Tascam hard disk recorders, such as the MX 2424, can be imported and
exported by Logic Pro. The OpenTL file format only supports the exchange of audio
data (audio regions, inclusive of track position information). MIDI and automation data
are ignored when using the Logic Pro OpenTL export function.
option Alternative function, often in the form of a checkbox, sometimes also available
as a menu entry.
Option Modifier key, also known as the Alt key in MS Windows.
output channel strip Channel strip type in the Mixer that controls the output level and
pan/balance for each physical output of your audio interface.
Page view A display mode in the Score Editor, used to view and lay out notation as it
will appear on the printed page.
pan, pan position The placement of mono audio signals in the stereo field, by setting
different levels on both sides (see Balance).
Pan control Rotary knob (directly above the Level fader) on mono channel strips, that
determines the position of the signal in the stereo image.
Parameter box Field on the left side of Logic Pro windows (or in the Inspector). It is
used to adjust the parameters of the selected track, regions, events, or objects. Also see
Inspector.
peak meter A digital audio meter that displays the absolute volume of an audio signal
as it plays. So named because every peak in the signal can be accurately seen.