Updated builds.

Author: mrdoob

build/three.js

@@ -14901,10 +14901,6 @@
 						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
 						break;
 
-					case 'WEBGL_compressed_texture_etc1':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_etc1' );
-						break;
-
 					default:
 						extension = gl.getExtension( name );
 
@@ -38471,7 +38467,7 @@
 
 		setMasterVolume: function ( value ) {
 
-			this.gain.gain.value = value;
+			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
 
 		},
 
@@ -38814,7 +38810,7 @@
 
 		setVolume: function ( value ) {
 
-			this.gain.gain.value = value;
+			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
 
 			return this;