David Robillard
8fed7470f5
git-svn-id: svn://localhost/ardour2/branches/3.0@3078 d708f5d6-7413-0410-9779-e7cbd77b26cf
349 lines
10 KiB
XML
349 lines
10 KiB
XML
<?xml version="1.0" standalone="no"?>
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<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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]>
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<section id="sn-editing-concepts">
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<title>Editing Concepts</title>
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<para>
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In Ardour, "editing" describes the process of
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</para>
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<itemizedlist>
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<listitem>
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<para>
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making modifications to playlists. Recall that
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<glossterm linkend="gt-playlist">playlists</glossterm> are nothing
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more than lists of
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<glossterm linkend="gt-region">regions</glossterm> arranged over
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time.
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</para>
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</listitem>
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<listitem>
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<para>
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recording/modifying automation data
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</para>
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</listitem>
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</itemizedlist>
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<section id="editing-cut-copy-paste">
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<title> Cut/Copy/Paste </title>
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<para></para>
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</section>
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<section id="sn-snap-settings">
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<title>Snap Settings</title>
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<para>
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By default, when you move objects around, they move freely. There
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<emphasis>is</emphasis> a "granularity" to the motion, but it is a
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single audio frame (so typically on the order of 1/48000'th or
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1/96000'th of a second), and at most zoom levels it will not be
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apparent in any way.
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</para>
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<para>
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However, this is not always the way you want to move some kinds of
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objects. If you are working with structured compositions that utilize
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traditional concepts of bars, beats, rythmn and so forth, you will
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often want to move regions so that that they always align to specific
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periodic time points that correspond to the start of a bar, or a beat
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etc. If you are working on a movie soundtrack, you may prefer to have
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regions always align to SMPTE frames, or perhaps even to whole
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seconds.
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</para>
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<para>
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Ardour provides a wide variety of "snap" settings. If any but "None"
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is selected, they define a grid of timepoints which will be used to
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"snap" object positions as they are dragged. The grid can be regular
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(as is the case if you choose "Beats", for example), or it can be
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completely irregular (if you choose "Marks", for example). It can even
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consist of a <emphasis>single</emphasis> timepoint (if you choose
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"Edit cursor", for example).
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</para>
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<para>
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Regions are a somewhat special case in that they may contain <emphasis>
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sync points</emphasis>. If a region contains a sync point, the region start
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position is ignored and the sync point is aligned to the grid. This allows
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you to align a 'hit point' to the desitred grid.
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</para>
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<variablelist>
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<title> Possible Snap Settings </title>
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<varlistentry>
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<term><guilabel>None</guilabel></term>
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<listitem>
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<para>
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no alignment used at all
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> CD Frames</guilabel></term>
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<listitem>
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<para>
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align to 1/75th of a second intervals, as defined by the
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"Redbook" Audio CD standards
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> SMPTE Frames</guilabel></term>
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<listitem>
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<para>
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align to whatever the current SMPTE frame interval is (defined
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in the options editor)
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> SMPTE Seconds</guilabel></term>
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<listitem>
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<para>
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align to whole seconds, adjusted to account for any SMPTE start
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offset
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> SMPTE Minutes</guilabel></term>
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<listitem>
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<para>
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align to whole minutes, adjust to account for any SMPTE start
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offset
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Seconds</guilabel></term>
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<listitem>
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<para>
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align to whole seconds
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Minutes</guilabel></term>
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<listitem>
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<para>
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align to whole minutes
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats/32</guilabel></term>
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<listitem>
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<para>
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align to 1/32 divisions of the beat
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats/16</guilabel></term>
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<listitem>
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<para>
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align to 1/16 divisions of the beat
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats/8</guilabel></term>
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<listitem>
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<para>
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align to 1/8 divisions of the beat
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats/4</guilabel></term>
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<listitem>
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<para>
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align to 1/4 divisions of the beat
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats/3</guilabel></term>
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<listitem>
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<para>
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align to 1/3 divisions of the beat
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Beats</guilabel></term>
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<listitem>
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<para>
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align to beats
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Bars</guilabel></term>
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<listitem>
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<para>
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align to the start of bars
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Marks</guilabel></term>
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<listitem>
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<para>
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align to the nearest mark of some kind
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Edit Cursor</guilabel></term>
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<listitem>
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<para>
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align to the current position of the edit cursor
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Region starts</guilabel></term>
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<listitem>
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<para>
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align to the nearest start of a region in the (first) selected
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track
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Region ends</guilabel></term>
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<listitem>
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<para>
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align to the nearest end of a region in the (first) selected
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track
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Region syncs</guilabel></term>
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<listitem>
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<para>
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align to the nearest region sync point in the (first) selected
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track
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel> Region bounds </guilabel></term>
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<listitem>
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<para>
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align to the nearest region start or end in the (first) selected
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track
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<section id="changing-snap-settings">
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<title> To change snap settings </title>
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<para>
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Move the mouse pointer to the toolbar panel of the editor window.
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Click on the "expansion arrow" of the "Snap setting" chooser. This
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will popup a list of available snap settings. If necessary, scroll
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down to see your desired choice. Click on your choice in the list to
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dismiss it and make Ardour switch to the new setting.
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</para>
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<note>
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<para>
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Changing snap settings has <emphasis>no</emphasis> effect on the
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position of any existing region. Its effect is only on objects
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being moved.
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</para>
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</note>
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<tip>
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<para>
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The snap setting also affects moving the playhead, the edit
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cursor, loop/punch and location markers, and dragging/moving range
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selections.
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</para>
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</tip>
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</section>
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<section id="snap-mode">
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<title> Snap Mode </title>
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<para>
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There are two subtly different ways in which the snap setting can
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affect region motion:
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</para>
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<variablelist>
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<title></title>
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<varlistentry>
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<term>normal snap mode</term>
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<listitem>
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<para>
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regions can only be moved to positions defined by the snap
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setting. It is not possible to move them to intermediate
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positions.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>magnetic snap mode</term>
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<listitem>
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<para>
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regions can still be moved to positions not defined by the
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setting, but they "stick" to the timepoints that are when
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dragged across them. Imagine that the timepoints and the
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regions are magnetic - or just try it and see.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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However, you can press the <emphasis>snap modifier</emphasis> key
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while dragging, and the snap setting will be ignored. By default,
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this is the key on your keyboard that generates
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<emphasis>Mod3</emphasis> , but you can modify this from the
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<emphasis>Options Editor</emphasis> keyboard tab.
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</para>
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</section>
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<section id="changing-snap-mode">
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<title> To change snap mode </title>
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<para>
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Move the mouse pointer to the toolbar panel of the editor window.
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Click on the "expansion arrow" of the "Snap mode" chooser. This will
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popup a list of available snap settings. If necessary, scroll down
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to see your desired choice. Click on your choice in the list to
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dismiss it and make Ardour switch to the new setting.
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</para>
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</section>
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</section>
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<!--
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="Some_Subsection.xml" />
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-->
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</section>
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