f04db3fe5d
A few other files were touched as well as they were referred to by files in the MIDI part, which lead to other connected things being pulled in. As this is only the first pass, there will be more necessary changes coming in the near future. Also, the lowest two levels of structure were mistakenly removed from the build system; these have been added back as they are necessary to keep the structure of the manual sane.
46 lines
1.9 KiB
HTML
46 lines
1.9 KiB
HTML
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<figure class=right>
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<img src="/images/gain-envelope1.png" alt="Default gain envelope">
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<figcaption>A gain envelope (in green).</figcaption>
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</figure>
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<p>
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In Ardour, every <dfn>region</dfn> has a <dfn>gain envelope</dfn>, which is
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normally hidden. Clicking on the Draw tool will cause all the gain envelopes
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on all regions to show themselves; these will appear as green lines with
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square dots (<dfn>control points</dfn>) at the beginning and end of each
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region. The vertical axis represents gain, with the top of the region
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representing +6dB and the bottom representing approximately -170dB. By
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default, the line starts and ends at 0dB; the control points can be moved up
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and down to change the amount of gain at that point.
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</p>
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<p>
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Gain follows the line between control points continuously during playback,
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and adjusts the gain for that region accordingly. It is completely automatic,
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unlike channel <a href="@@automation">automation</a>.
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</p>
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<h2 style="clear: both">Manipulating Gain Envelopes</h2>
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<p>
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The default gain curve, by itself, is not very useful; in order to have more
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control over the shape of the gain envelope it is necessary to add extra
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control points. Clicking anywhere in the region where there are no existing
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control points adds a control point to the envelope; it will appear <em>on the
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line</em> at the X-axis of the mouse's current position in the region.
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</p>
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<figure class="center">
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<img src="/images/gain-envelope2.png" alt="Complex gain envelope">
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<figcaption>A more complex gain envelope.</figcaption>
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</figure>
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<p>
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Once added, a control point can be <kbd class="mouse">Left</kbd> clicked and
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dragged to the desired location. Hovering over a control point will show its
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current level in dB. <kbd class="mouse">Left</kbd> clicking a control point
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and pressing <kbd>Delete</kbd>, or <kbd class="mod3 mouse">Right</kbd>
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clicking a control point deletes it.
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</p>
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