diff --git a/parcel/lib/audio-manager.js b/parcel/lib/audio-manager.js
index d314a85..79fd02b 100644
--- a/parcel/lib/audio-manager.js
+++ b/parcel/lib/audio-manager.js
@@ -60,6 +60,7 @@ export default class AudioManager{
 
 		/* (7) Initialise coordinator to manage received */
 		this.stack = [];
+		this.stack_save = 0;
 
 
 
@@ -291,7 +292,7 @@ export default class AudioManager{
 		gain.connect(this.master);
 
 		/* (7) If not empty stack -> play stack */
-		if( this.stack.length > 0 ){
+		if( this.stack.length > this.stack_save ){
 			this.stack.shift().start(this.ctx.currentTime);
 			return this.stack.push(source);
 		}
@@ -304,11 +305,12 @@ export default class AudioManager{
 			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);
+			if( this.stack.length > this.stack_save )
+				this.stack.shift().start(this.ctx.curentTime);
 
 		}.bind(this);
 
-		// start playing
+		// push in stack
 		source.start(this.ctx.currentTime);
 
 	}