27 lines
1.9 KiB
HTML
27 lines
1.9 KiB
HTML
---
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title: Ruler
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---
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<img src="/images/ruler.png" alt="Ardour's Ruler">
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<p>
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The <dfn>Ruler</dfn> scales the session along time, allows navigating, and can be marked for different uses. The main use of the Ruler is to move the playhead : clicking anywhere on the timeline will bring the playhead at this location in time.
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</p>
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<p>
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It is made of a succession of rows, each having a special role related to time.From top to bottom, those rows are :
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</p>
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<dl>
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<dt><dfn>Timecode</dfn></dt><dd>scaling the session whith the traditionnal Hours:Mins:Secs:Frames notation</dd>
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<dt><dfn>Bars:Beats</dfn></dt><dd>slicing the time according to the time signature ot the Meter</dd>
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<dt><dfn>Meter</dfb></dt><dd>shows the time signature. It can be changed along the timeline, by <kbd class="mouse">Right click</kbd> > <kbd class="menu">New Meter</kbd>. The Bars:Beats ruler will reflect the change.</dd>
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<dt><dfn>Tempo</dfn></dt><dd>shows the BPM. It can be changed along the timeline, by <kbd class="mouse">Right click</kbd> > <kbd class="menu">New Tempo</kbd>. The Bars:Beats ruler will reflect the change.</dd>
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<dt><dfn>Range Markers</dfn></dt><dd>allow to create and modify ranges directly on the Ruler.</dd>
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<dt><dfn>Loop/Punch Ranges</dfn></dt><dd>are special kind of ranges designed to be played as a loop and to do punch recording, i.e. recording on a precise section of time, respectively.</dd>
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<dt><dfn>CD Markers</dfn></dt><dd>are markers designed to be used while creating a recording that has to be split in time, as an audio CD</dd>
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<dt><dfn>Location Markers</dfn></dt><dd>is meant to receive any kind of marker, user generated or from Ardour itself.</dd>
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</dl>
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<p>Most of the operations on the markers are described in <a href="/working-with-markers/">Working with Markers</a>, while the Meter, Tempo, Bars:Beats and Timecode use are described in <a href="/working-with-tempo-and-meter/">Tempo and Meter</a>.</p>
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