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7 <section id="sn-editing-concepts">
8 <title>Editing Concepts</title>
10 In Ardour, "editing" describes the process of
16 making modifications to playlists. Recall that
17 <glossterm linkend="gt-playlist">playlists</glossterm> are nothing
19 <glossterm linkend="gt-region">regions</glossterm> arranged over
26 recording/modifying automation data
31 <section id="editing-cut-copy-paste">
32 <title> Cut/Copy/Paste </title>
36 <section id="sn-snap-settings">
37 <title>Snap Settings</title>
39 By default, when you move objects around, they move freely. There
40 <emphasis>is</emphasis> a "granularity" to the motion, but it is a
41 single audio frame (so typically on the order of 1/48000'th or
42 1/96000'th of a second), and at most zoom levels it will not be
47 However, this is not always the way you want to move some kinds of
48 objects. If you are working with structured compositions that utilize
49 traditional concepts of bars, beats, rythmn and so forth, you will
50 often want to move regions so that that they always align to specific
51 periodic time points that correspond to the start of a bar, or a beat
52 etc. If you are working on a movie soundtrack, you may prefer to have
53 regions always align to SMPTE frames, or perhaps even to whole
58 Ardour provides a wide variety of "snap" settings. If any but "None"
59 is selected, they define a grid of timepoints which will be used to
60 "snap" object positions as they are dragged. The grid can be regular
61 (as is the case if you choose "Beats", for example), or it can be
62 completely irregular (if you choose "Marks", for example). It can even
63 consist of a <emphasis>single</emphasis> timepoint (if you choose
64 "Edit cursor", for example).
68 Regions are a somewhat special case in that they may contain
69 <emphasis> sync points</emphasis>. If a region contains a sync point,
70 the region start position is ignored and the sync point is aligned to
71 the grid. This allows you to align a 'hit point' to the desitred grid.
75 <title> Possible Snap Settings </title>
77 <term><guilabel>None</guilabel></term>
80 no alignment used at all
86 <term><guilabel> CD Frames</guilabel></term>
89 align to 1/75th of a second intervals, as defined by the
90 "Redbook" Audio CD standards
96 <term><guilabel> SMPTE Frames</guilabel></term>
99 align to whatever the current SMPTE frame interval is (defined
100 in the options editor)
106 <term><guilabel> SMPTE Seconds</guilabel></term>
109 align to whole seconds, adjusted to account for any SMPTE start
116 <term><guilabel> SMPTE Minutes</guilabel></term>
119 align to whole minutes, adjust to account for any SMPTE start
126 <term><guilabel> Seconds</guilabel></term>
129 align to whole seconds
135 <term><guilabel> Minutes</guilabel></term>
138 align to whole minutes
144 <term><guilabel> Beats/32</guilabel></term>
147 align to 1/32 divisions of the beat
153 <term><guilabel> Beats/16</guilabel></term>
156 align to 1/16 divisions of the beat
162 <term><guilabel> Beats/8</guilabel></term>
165 align to 1/8 divisions of the beat
171 <term><guilabel> Beats/4</guilabel></term>
174 align to 1/4 divisions of the beat
180 <term><guilabel> Beats/3</guilabel></term>
183 align to 1/3 divisions of the beat
189 <term><guilabel> Beats</guilabel></term>
198 <term><guilabel> Bars</guilabel></term>
201 align to the start of bars
207 <term><guilabel> Marks</guilabel></term>
210 align to the nearest mark of some kind
216 <term><guilabel> Edit Cursor</guilabel></term>
219 align to the current position of the edit cursor
225 <term><guilabel> Region starts</guilabel></term>
228 align to the nearest start of a region in the (first) selected
235 <term><guilabel> Region ends</guilabel></term>
238 align to the nearest end of a region in the (first) selected
245 <term><guilabel> Region syncs</guilabel></term>
248 align to the nearest region sync point in the (first) selected
255 <term><guilabel> Region bounds </guilabel></term>
258 align to the nearest region start or end in the (first) selected
265 <section id="changing-snap-settings">
266 <title> To change snap settings </title>
268 Move the mouse pointer to the toolbar panel of the editor window.
269 Click on the "expansion arrow" of the "Snap setting" chooser. This
270 will popup a list of available snap settings. If necessary, scroll
271 down to see your desired choice. Click on your choice in the list to
272 dismiss it and make Ardour switch to the new setting.
277 Changing snap settings has <emphasis>no</emphasis> effect on the
278 position of any existing region. Its effect is only on objects
284 The snap setting also affects moving the playhead, the edit
285 cursor, loop/punch and location markers, and dragging/moving range
291 <section id="snap-mode">
292 <title> Snap Mode </title>
294 There are two subtly different ways in which the snap setting can
295 affect region motion:
301 <term>normal snap mode</term>
304 regions can only be moved to positions defined by the snap
305 setting. It is not possible to move them to intermediate
312 <term>magnetic snap mode</term>
315 regions can still be moved to positions not defined by the
316 setting, but they "stick" to the timepoints that are when
317 dragged across them. Imagine that the timepoints and the
318 regions are magnetic - or just try it and see.
325 However, you can press the <emphasis>snap modifier</emphasis> key
326 while dragging, and the snap setting will be ignored. By default,
327 this is the key on your keyboard that generates
328 <emphasis>Mod3</emphasis> , but you can modify this from the
329 <emphasis>Options Editor</emphasis> keyboard tab.
333 <section id="changing-snap-mode">
334 <title> To change snap mode </title>
336 Move the mouse pointer to the toolbar panel of the editor window.
337 Click on the "expansion arrow" of the "Snap mode" chooser. This will
338 popup a list of available snap settings. If necessary, scroll down
339 to see your desired choice. Click on your choice in the list to
340 dismiss it and make Ardour switch to the new setting.
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