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doc/notes.txt : Added performance editor design notes.

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Kevin Larke 9 年之前
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@@ -597,6 +597,103 @@ E5,G33,A#2,C#1 212-218 Marker 36
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 E3             185     Marker 37
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 F5,C#4,G#5     986     Marker-Down 204     
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+=============================================================================
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+Sequence Editor Design
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+
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+1) Performance pre-processing:
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+  For each annotated performance section align the performance to the score.
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+  and fill in the 
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+   sectionArray :
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+   [
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+     section :
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+     {
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+       seq    : 1           // time-line this section resides in   
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+       marker : 12          // time-line id of this sections begin marker 
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+     
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+       eventArray :
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+       [
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+         event : 
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+         {
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+
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+	   // score tracking status
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+	   // aligned   = event matches a score location (scloc is valid)
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+	   // inserted  = inserted note that does not match the score (scloc is not valid)
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+	   // pitch_err = matches score with the wrong pitch (scloc is valid)
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+	   // order_err = matches score but not is out of order (scloc is valid)
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+	   status: aligned | inserted | pitch_err | order_err
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+
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+	   // score location this event is associated with
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+	   // or -1 if the note does not match a score event
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+           scloc:    154      
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+
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+	   // performance sample index as an offset into the time-line sequence
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+	   smpIdx:   134689   
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+
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+	   // performance event duration
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+	   durtn:    234567  
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+	   
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+	   // optional note event information
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+	   note : 
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+	   {
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+	     pitch: 60
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+	     vel:   110
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+	   }
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+
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+	   // optional pedal event information
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+	   pedal :
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+	   {
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+	     label: quiet, sust, damp
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+	     down : true
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+	   }
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+         }      
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+       ]
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+     }
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+   ]
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+ 
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+2) Create a new sequence by combining sections:
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+
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+  a. Load the section array file created in step 1).
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+  b. Select a set of sections to form the basis of the new sequence.
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+  c. Resolve overlapping notes by disabling extra notes that share the
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+     same score location.
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+  d. Insert missing notes by selecting a note(s) from the score.
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+  e. Increase or decrease the inter-onset interval between two notes.
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+     (this will adjust the absolute time offset of all subsequent notes)
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+  f. Edit the velocity of a note.
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+  g. Shift the position of a pedal down or up event.
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+  h. Insert a pedal event.
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+  i. Write the sequence to a file.
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+  j. Load a sequence from a file.
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+
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+3) User Interface:
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+  Two Views:
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+  a. Single Frame View: 
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+     Display score bars and sections (same as score window) and overlay 
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+     section boxes. Select sections to include in a new sequence.
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+     Select Edit | Create Sequence.
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+
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+  b. Single Frame View: 
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+     The begin marker of each frame includes the section label.
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+     Selecting the begin section marker selects all events in the section.  
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+       (this does not have to be done explicitely)
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+     Each note in each section is displayed piano-roll style.
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+        The notes are colored according to their 'status'.
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+	Overlapping notes are shown in red.
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+	Disabled notes are shown as hollow boxes.
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+     A strip at the bottom shows the pedal state.
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+     
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+
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+     Menu:
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+       Show/Hide selected events / sections.
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+       Enable/Disable selected events.
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+        
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+     
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+ 
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+
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+
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+
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+=============================================================================
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+
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 -------------------------------------------------------------------------------
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 OSX - Install Notes
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 -------------------------------------------------------------------------------

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