manual/include/osc58-jog-modes.html

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<p>
The <code>/jog</code> command will have a different affect depending
on which jog mode is selected. The jog system has two commands and
gives feedback of the mode chosen.
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</p>
<table class="dl">
<tr><th><kbd class="osc">/jog <em>delta</em></kbd></th>
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<td>Where <em>delta</em> is a float indicating the amount and direction.</td></tr>
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<tr><th><kbd class="osc">/jog/mode <em>mode</em></kbd></th>
<td>Where <em>mode</em> is an int from 0 to 7 indicating the mode</td></tr>
</table>
<p>
Feedback is as below
</p>
<table class="dl">
<tr><th><kbd class="osc">/jog/mode/name <em>name</em></kbd></th>
<td>Where <em>name</em> is a string indicating the name of the current jog mode.</td></tr>
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<tr><th><kbd class="osc">/jog/mode <em>mode</em></kbd></th>
<td>Where <em>mode</em> is an int from 0 to 7 indicating the current jog mode.</td></tr>
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</table>
<h3>Jog Modes</h3>
<p>
<ul>
<li>0 Jog, each tick moves the Playhead forward or backward .2 seconds.</li>
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<li>1 Nudge, Moves the Playhead forward or backward by the amount of the nudge clock.</li>
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<li>2 Scrub, see <a href="#scrub">Scrub mode</a>.</li>
<li>3 Shuttle, each tick raises or lowers the transport speed by 12.5%.</li>
<li>4 Marker, Moves the Playhead to the previous or next Marker.</li>
<li>5 Scroll, each tick scrolls the edit window by one, forward or back.</li>
<li>6 Track, moves the current bank left or right by one strip.</li>
<li>7 Bank, Moves the current bank left or right by one bank.</li>
</ul>
</p>
<p>
The jog mode may be set using a slider with 0 to 7 limits, a group of switches
or radio buttons. What works in any situation will depend on the controller.
</p>
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<h2 id="scrub">Scrub</h2>
<p>
Scrub deserves special mention. In an ideal world, scrub would be jog with sound.
However, Ardour does not have that functionality yet. So scrub starts the transport
rolling at either 50% or 100% depending on how fast the jog wheel is turned. The
position of the last tick is always saved and if no more ticks are received, the
transport is located there when stopped at time out. If the jog wheel gives a value
of 0 when released the transport stops at the location the value 0 is sent.
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</p>