2 <p><em>/set_surface</em> has two values the user needs to calculate before
3 use. In general these will not be calculated at run time, but
4 beforehand. There may be more than one button with different values
5 to turn various kinds of feedback on or off or to determine which
6 kinds of strips are currently viewed/controlled.
8 <p>Both <em>feedback</em> and <em>strip-types</em> use bitsets to keep
9 track what they are doing. Any number in a computer is made out of
10 bits that are on or off, but we represent them as normal base 10
11 numbers. Any one bit turned on will add a unique value to the
12 number as a whole. So for each kind of feedback or strip type
13 to be used, that number should be added to the total.</p>
16 strip_types is an integer made up of bits. The easy way to
17 deal with this is to think of strip_types items being worth a number and
18 then adding all those numbers together for a value to send.
19 Strip Types will determine What kind of strips will be included in
20 bank. This would include: Audio, MIDI, busses, VCAs, Master, Monitor
21 and hidden or selected strips.
59 Selected and Hidden bits are normally not needed as Ardour defaults to
60 showing Selected strips and not showing Hidden strips. The purpose of
61 these two flags is to allow showing only Selected strips or only
62 Hidden strips. Using Hidden with other flags will allow Hidden strips
63 to show inline with other strips.
65 <p class="note" id="use-group">
66 Use Group on will tell ardour that any control on a strip that is part
67 of a group will affect all strips within that group. Default is off
68 or the control should only affect the strip the control is applied to.
69 The <code>/use_group f state</code> command can be used to temporarily
70 change this on the fly.
72 Some handy numbers to use might be: 15 (all tracks and busses -
74 (add VCAs to that - 15 + 16). Master or Monitor strips are generally
75 not useful on a surface that has dedicated controls for these strips
76 as there are /master* and /monitor* commands already. However, on a
77 surface with just a bank of fader strips, adding master or monitor
78 would allow access to them within the banks. Selected would be useful
79 for working on a group or a set of user selected strips. Hidden shows
80 strips the GUI has hidden.
83 Audio Aux? say what? I am sure most people will have noticed that they
84 can find no <em>Aux</em> strips in the Ardour mixer. There are none.
85 There are busses that can be used a number of ways. From analog days,
86 in OSC, a bus is something that gets used as a sub mix before ending up
87 going to Master. An auxiliary bus is used like a separate mixer and
88 it's output goes outside the program or computer to be used as:
89 a monitor mix, a back up recording, or what have you. In OSC where
90 controller strips may be limited, it may be useful not to use up a
91 strip for an aux that is not really a part of the mix. It is also
92 useful to get a list of only aux busses if the control surface is a
93 phone used to provide talent monitor mix control on stage. Each
94 performer would be able to mix their own monitor. The user is free
95 to enable both busses and auxes if they would prefer.
98 <h2 id="feedback">feedback</h2>
99 <p>Feedback is an integer made up of bits. The easy way to
100 deal with this is to think of feedback items being worth a number and
101 then adding all those numbers together for a value to send.
105 1: Button status for strips.
108 2: Variable control values for strips.
111 4: Send SSID as path extension.
114 8: heartbeat to surface.
117 16: Enable master section feedback.
120 32: Send Bar and Beat.
126 128: Send meter as dB (-193 to +6) or 0 to 1 depending on gainmode
129 256: Send meter a 16 bit value where each bit is a level
130 and all bits of lower level are on. For use in a LED strip. This
131 will not work if the above option is turned on.
134 512: Send signal present, true if level is higher than -40dB
137 1024: Send position in samples
140 2048: Send position in time, hours, minutes, seconds and milliseconds
143 8192: Turn on select channel feedback
146 16384: Use OSC 1.0 /reply instead of #reply
150 So using a value of 19 (1 + 2 + 16) would turn on feedback for strip
151 and master controls, but leave meters, timecode and bar/beat feedback off.