ardour
/
manual
13
0
Fork 0
Code Pull Requests Releases Activity

Added info about using encoders with generic midi surfaces.

This commit is contained in:
Len Ovens 2015-07-25 11:16:07 -07:00
parent d1551d3ee7
commit 91d18f81d2
2 changed files with 65 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
_manual/22_using-control-surfaces/03_midi-binding-maps.html
View File

@ -114,6 +114,14 @@ bindings">
use <code>note</code> (to create binding for a Note On message) or
<code>pgm</code> (to create a binding for a Program Change message).
</p>
<p>
<code>enc-r</code>, <code>enc-l</code>, <code>enc-2</code> and
<code>enc-b</code> may be used for surfaces that have encoders that send
offsets rather than values. These accept Continuous Controller messages
but treat them as offsets. These are good for banked controls as they are
always at the right spot to start adjusting. See the link at the bottom of
the page for a longer explanation.
</p>
<p>
You can also bind sysex messages:
</p>
@ -359,3 +367,4 @@ bindings"&gt;
(the channel range may change at some point).
</p>
{% children %}

56
_manual/22_using-control-surfaces/03_midi-binding-maps/01_working-with-encoders.html Normal file
View File

@ -0,0 +1,56 @@
---
layout: default
title: Working With Encoders in Ardour
menu_title: Working With Encoders
---
<p>
Encoders are showing up more frequently on controllers. However, they use
the same MIDI events as Continuous Controllers and they have no standard
way of working. Ardour has implemented 4 of the more common ways of
sending encoder information.
</p>
<p>
Encoders that send the same continuous values as a pot would are not
discussed here as they work the same.
</p>
<P>
Encoders as this page talks about them send direction and offset that the
DAW will add to or subtract from the current value.
</p>
<p>
The 4 kinds of encoder supported are:
</p>
<ul>
<li>
enc-r - On the bcr/bcf2000 this is called "Relative Signed Bit". The most
significant bit sets positive and the lower 6 signifcant bits are the
offset.
</li>
<li>
enc-l - The bcr2000 calls this "Relative Signed Bit 2". The most
significant bit sets negative and the lower 6 signifcant bits are the
offset. If you are using one of these two and the values are right but
reversed, use the other. This one is the one the Mackie Control Protocol
uses.
</li>
<li>
enc-2 - The bcr2000 calls this one "Relative 2s Complement". Positive
offsets are sent as normal from 1 to 64 and negative offsets are sent as
2s complement negative numbers.
</li>
<li>
enc-b - The bcr2000 calls this one "Relative Binary Offset". Positive
offsets are sent as offset plus 64 and negative offsets are sent as 64
minus offset.
</li>
<p>
If the wrong one is chosen, either the positive or negative side will act
incorrectly. It is not really possible to auto detect which one the
controller is using. Trial and error is the only way if the specification
of the controller is not known.
</p>
<p>
Many controllers have more than one choice as well, check the manual for
the surface.
</p>