102 lines
2.8 KiB
HTML
102 lines
2.8 KiB
HTML
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---
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layout: default
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title: Calculating Feedback and Strip-types Values
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---
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<p><em>/set_surface</em> has two values the user needs to calculate before
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use. In general these will not be calculated at run time, but
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beforehand. There may be more than one button with different values
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to turn various kinds of feedback on or off or to determine which
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kinds of strips are currently viewed/controlled.
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</p>
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<p>Both ,<em>feedback</em> and <em>strip-types</em> use bitsets to keep
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track what they are doing. Any number in a computer is made out of
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bits that are on or off, but we represtent them as normal base 10
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numbers. Any one bit turned on will add a unique value to the
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number as a whole. So for each kind of feedback or strip type
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to be used, that number should be added to the total.</p>
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<h3>strip_types</h3>
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<p>
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strip_types is an integer made up of bits. The easy way to
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deal with this is to think of strip_types items being worth a number and
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then adding all those numbers together for a value to send.
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Strip Types will determine What kind of strips will be included in
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bank. This would include: Audio, MIDI, busses, VCAs, Master, Monitor
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and hidden or selected strips.
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</p>
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<ul>
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<li>
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1 - AudioTracks.
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</li>
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<li>
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2 - MidiTracks.
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</li>
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<li>
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4 - AudioBusses.
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</li>
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<li>
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8 - MidiBusses.
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</li>
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<li>
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16 - VCAs.
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</li>
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<li>
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2048 - Master.
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</li>
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<li>
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4096 - Monitor.
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</li>
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<li>
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16384 - Selected.
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</li>
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<li>
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32768 - Hidden.
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</li>
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</ul>
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<p>
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Some handy numbers to use might be: 15 (all tracks and busses), 31
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(add VCAs to that). Master or Monitor strips are generally not useful
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on a surface that has dedicated controls for these strips as there are
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/master* and /monitor* commands already. However, on a surface with
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just a bank of fader strips, adding master or monitor would allow
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access to them within the banks. Selected would be useful for working
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on a group or a set of user selected strips. Hidden shows strips the
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GUI has hidden.
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</p>
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<h3>feedback</h3>
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<p>Feedback is an integer made up of bits. The easy way to
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deal with this is to think of feedback items being worth a number and
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then adding all those numbers together for a value to send.
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</p>
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<ul>
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<li>
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1 - Button status for strips.
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</li>
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<li>
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2 - Variable control values for strips.
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</li>
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<li>
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4 - Send meter values (not coded yet).
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</li>
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<li>
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8 - heartbeat to surface.
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</li>
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<li>
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16 - Enable master section feedback.
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</li>
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<li>
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32 - Send Bar and Beat (not coded yet).
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</li>
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<li>
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64 - Send timecode (not coded yet).
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</li>
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<li>
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128 - Send SSID as path extension.
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</li>
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</ul>
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<p>
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So using a value of 19 would turn on feedback for strip and master
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controls, but leave meters, timecode and bar/beat feedback off.
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</p>
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