diff --git a/flow/proc_dict.cfg b/flow/proc_dict.cfg
index ee0ba51..cbe87f7 100644
--- a/flow/proc_dict.cfg
+++ b/flow/proc_dict.cfg
@@ -13,7 +13,14 @@
 	vars: {
 	  dev_label: { type:string, value:"<all>", doc:"MIDI input device label. Set to '<all>' to accept input from any device."},
 	  port_label:{ type:string, value:"<all>", doc:"MIDI input device port label. Set to '<all>' to accept input from any device."},
-	  out:       { type:midi,   doc:"MIDI input port." },
+	  out:       { type:midi,                  doc:"MIDI input port." },
+	  r_out:     { type:record,                doc:"MIDI record.",
+	                  fmt: {
+			    fields: {
+			      midi: { type:m3,             doc:"MIDI channel event message" },
+			    }
+			  }
+			}
 	}
       }
       
@@ -171,6 +178,7 @@
       pv_analysis: {
         vars: {
           in:		{ type:audio,    flags:["src"], doc:"Audio input." },
+	  enable:       { type:bool,     value: true,   doc:"Enable/disable the processor."}
 	  maxWndSmpN:	{ type:uint,     value: 1024,   doc:"Maximum window sample count." },
           wndSmpN:	{ type:uint,     value: 512,    doc:"Window sample count." },
           hopSmpN:	{ type:uint,     value:  128,   doc:"Hop sample count." },
@@ -254,15 +262,16 @@
 
       pv_synthesis: {
         vars: {
-          in:  { type:spectrum,  flags:["src"],  doc:"Spectrum input." },
-          out: { type:audio,                  doc:"Audio output." }
+          in:        { type:spectrum,  flags:["src"],  doc:"Spectrum input." },
+	  enable:    { type:bool,     value: true,     doc:"Enable/disable the processor."}	  
+          out:       { type:audio,                     doc:"Audio output." }
           }
       }
 
       spec_dist: {
         vars: {
           in:       { type:spectrum, flags:["src"], doc:"Spectrum input." },
-
+	  enable:   { type:bool, value: true,  doc:"Enable/disable this processor."},
 	  bypass:   { type:bool, value: false, doc:"Copy input to output without transform."},
           ceiling:  { type:coeff, value: 30.0, doc:"Ceiling parameter."},
           expo:     { type:coeff, value:  2.0, doc:"Exponent parameter."},
@@ -403,8 +412,9 @@
 
       compressor: {
         vars: {
-          in:        { type:audio, flags:["src"]  true, doc:"Audio input." },	  
-          bypass:    { type:bool, value:  false, doc:"Bypass the compressor."},
+          in:        { type:audio, flags:["src"], doc:"Audio input." },
+	  enable:    { type:bool,  value:  true,  doc:"Same as bypass with opposite polarity." },
+          bypass:    { type:bool,  value:  false, doc:"Bypass the compressor."},
 	  igain:     { type:coeff, value:    1.0, doc:"Input gain."},
 	  thresh:    { type:coeff, value:   90.0, doc:"Attack threshold in dB."},
 	  ratio:     { type:coeff, value:    2.0, doc:"Compression ratio."},
@@ -519,12 +529,12 @@
 
       limiter: {
         vars: {
-          in:        { type:audio, flags:["src"]  true, doc:"Audio input." },	  
-          bypass:    { type:bool, value:  false, doc:"Bypass the limiter."},
+          in:        { type:audio, flags:["src"], doc:"Audio input." },	  
+          bypass:    { type:bool, value:  false,  doc:"Bypass the limiter."},
 	  igain:     { type:coeff, value:    1.0, doc:"Input gain."},
 	  thresh:    { type:coeff, value:    0.0, doc:"Linear (0.0-1.0) threshold."},
 	  ogain:     { type:coeff, value:    1.0, doc:"Output gain."},	  
-          out:       { type:audio,               doc:"Audio output." },	
+          out:       { type:audio,                doc:"Audio output." },	
 	}
 	
 	presets: {
@@ -735,6 +745,9 @@
 	  in:      { type:midi,   doc:"MIDI in" },
 	  out:     { type:audio,  doc:"Audio out" },
 	  done_fl: { type:bool, value:false,  doc:"Triggers when voice is available."},
+	  gate_fl: { type:bool, value:false,  doc:"True when voice is active, false when inactive." },
+	  rls_coeff: { type:coeff, value:0.9, doc:"Release decay factor. Increase for longer decays."},
+	  rls_thresh:{ type:coeff, value:0.01,doc:"Note off threshold. Decrease for longer decays."},
 	  
 	  test_pitch:      { type:uint, value:0, doc:"Pitch to test." },
 	  test_key_pitch:  { type:uint, value:48, doc:"Base pitch to use for lowest velocity when in 'test' mode." },
@@ -868,7 +881,7 @@
       preset_select: {
         doc:[ "Given a score location emit a preset label."],
 	vars: {
-	  cfg:         { type:cfg,    flags:["init"], preset:"init", doc:"Initial preset configuration." },
+	  cfg:         { type:cfg,    flags:["init"],                doc:"Initial preset configuration." },
 	  in:          { type:record, fmt:{ required:["loc"]}        doc:"Input record with 'loc' field." },
 	  fname:       { type:string, flags:["init"], value:"",      doc:"Preset file name."},
 	  loc:         { type:uint,   value:0,                       doc:"Seek to this location." },
@@ -905,7 +918,7 @@
       gutim_ps: {
         doc:[ "Given score location and MIDI note messages emit transform parameters."],
 	vars: {
-	  cfg:         { type:cfg,    flags:["init"], preset:"init", doc:"Initial preset configuration." },
+	  cfg:         { type:cfg,    flags:["init"],                doc:"Initial preset configuration." },
 	  fname:       { type:string, flags:["init"], value:"",      doc:"Preset file name."},
 	  in:          { type:record, fmt:{ required:["loc"] },      doc:"Input record with 'loc' field." },
 	  loc:         { type:uint,   value:0,                       doc:"Seek to this location." },