diff --git a/parcel/lib/audio-manager.js b/parcel/lib/audio-manager.js
index f8cede9..d314a85 100644
--- a/parcel/lib/audio-manager.js
+++ b/parcel/lib/audio-manager.js
@@ -12,6 +12,8 @@ export default class AudioManager{
 
 		/* (2) Create the MASTER gain */
 		this.master = this.ctx.createGain();
+		this.volume = this.ctx.createGain();
+			this.volume.gain.setValueAtTime(.65, 0); // input volume 65%
 
 		/* (3) Initialise input (typically bound from recorder) */
 		this.input = null;
@@ -56,6 +58,9 @@ export default class AudioManager{
 		/* (6) Set up our filters' parameters  */
 		this.setUpFilters();
 
+		/* (7) Initialise coordinator to manage received */
+		this.stack = [];
+
 
 
 
@@ -104,27 +109,28 @@ export default class AudioManager{
 		---------------------------------------------------------*/
 		/* (1) Setup EQ#1 -> voice clarity */
 		this.filters.voice_clarity.type            = 'peaking';
-		this.filters.voice_clarity.frequency.value = 3000;
-		this.filters.voice_clarity.Q.value         = .8;
-		this.filters.voice_clarity.gain.value      = 2;
+		this.filters.voice_clarity.frequency.setValueAtTime(3000,  this.ctx.currentTime);
+		this.filters.voice_clarity.Q.setValueAtTime(.8,            this.ctx.currentTime);
+		this.filters.voice_clarity.gain.setValueAtTime(2,          this.ctx.currentTime);
 
 		/* (2) Setup EQ#2 -> voice fullness */
 		this.filters.voice_fullness.type            = 'peaking';
-		this.filters.voice_fullness.frequency.value = 200;
-		this.filters.voice_fullness.Q.value         = .8;
-		this.filters.voice_fullness.gain.value      = 2;
+		this.filters.voice_fullness.frequency.setValueAtTime(200,  this.ctx.currentTime);
+		this.filters.voice_fullness.Q.setValueAtTime(.8,           this.ctx.currentTime);
+		this.filters.voice_fullness.gain.setValueAtTime(2,         this.ctx.currentTime);
 
 		/* (3) Setup EQ#3 -> reduce voice presence */
 		this.filters.voice_presence.type            = 'peaking';
-		this.filters.voice_presence.frequency.value = 5000;
-		this.filters.voice_presence.Q.value         = .8;
-		this.filters.voice_presence.gain.value      = -2;
+		this.filters.voice_presence.frequency.setValueAtTime(5000, this.ctx.currentTime);
+		this.filters.voice_presence.Q.setValueAtTime(.8,           this.ctx.currentTime);
+		this.filters.voice_presence.gain.setValueAtTime(-2,        this.ctx.currentTime);
 
 		/* (4) Setup EQ#3 -> reduce 'sss' metallic sound */
 		this.filters.voice_sss.type            = 'peaking';
-		this.filters.voice_sss.frequency.value = 7000;
-		this.filters.voice_sss.Q.value         = .8;
-		this.filters.voice_sss.gain.value      = -8;
+		this.filters.voice_sss.frequency.setValueAtTime(7000,      this.ctx.currentTime);
+		this.filters.voice_sss.Q.setValueAtTime(.8,                this.ctx.currentTime);
+		this.filters.voice_sss.gain.setValueAtTime(-8,             this.ctx.currentTime);
+
 
 
 		/* (2) Connect filters
@@ -159,8 +165,11 @@ export default class AudioManager{
 		if( unlink === true )
 			return this.input.connect(this.network.out);
 
-		/* (4) If linking -> connect input to filter stack */
-		this.input.connect(first_filter);
+		/* (4) If linking -> connect input to volume */
+		this.input.connect(this.volume);
+
+		/* (5) If linking -> connect volume to filter stack */
+		this.volume.connect(first_filter);
 
 		/* (5) If linking -> connect stack end to network.out */
 		last_filter.connect(this.network.out);
@@ -177,6 +186,7 @@ export default class AudioManager{
 		/* (1) Bind audio stream
 		---------------------------------------------------------*/
 		/* (1) bind our audio stream to our source */
+		console.log(_stream);
 		this.input = this.ctx.createMediaStreamSource(_stream);
 
 
@@ -280,11 +290,26 @@ export default class AudioManager{
 		source.connect(gain);
 		gain.connect(this.master);
 
-		/* (7) Start playing */
-		source.start(this.ctx.currentTime);
+		/* (7) If not empty stack -> play stack */
+		if( this.stack.length > 0 ){
+			this.stack.shift().start(this.ctx.currentTime);
+			return this.stack.push(source);
+		}
 
-		this.dbg.data.packets_received++;
-		this.dbg.data.kB_received += _buffer.length * 16. / 8 / 1024;
+
+		/* (8) If empty stack -> play + chain */
+		// chain stack
+		source.onended = function(){
+
+			this.dbg.data.packets_received++;
+			this.dbg.data.kB_received += _buffer.length * 16. / 8 / 1024;
+
+			return this.stack.length > 0 && this.stack.shift().start(this.ctx.curentTime);
+
+		}.bind(this);
+
+		// start playing
+		source.start(this.ctx.currentTime);
 
 	}