From 587a3b652bb0f9f0db285571cc5b619da311eb3a Mon Sep 17 00:00:00 2001
From: jbphet <john.blanco@colorado.edu>
Date: Wed, 10 Jul 2019 14:24:49 -0600
Subject: [PATCH] roughly matched volume levels to those of the prototype, see
 #166

---
 js/gravity-force-lab-basics/view/GFLBScreenView.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/js/gravity-force-lab-basics/view/GFLBScreenView.js b/js/gravity-force-lab-basics/view/GFLBScreenView.js
index dcadb81..e64d484 100644
--- a/js/gravity-force-lab-basics/view/GFLBScreenView.js
+++ b/js/gravity-force-lab-basics/view/GFLBScreenView.js
@@ -221,11 +221,13 @@ define( require => {
       // sound generation for the mass values
       soundManager.addSoundGenerator( new MassSoundGenerator(
         model.object1.valueProperty,
-        model.resetInProgressProperty )
-      );
+        model.resetInProgressProperty,
+        { initialOutputLevel: 0.5 }
+      ) );
       soundManager.addSoundGenerator( new MassSoundGenerator(
         model.object2.valueProperty,
-        model.resetInProgressProperty )
+        model.resetInProgressProperty ),
+        { initialOutputLevel: 0.5 }
       );
 
       // @private - sound generation for the force sound
@@ -251,7 +253,7 @@ define( require => {
       } );
 
       // sound generation for masses (almost) colliding with one another
-      const innerBoundarySoundClip = new SoundClip( innerBoundarySound, { initialOutputLevel: 0.5 } );
+      const innerBoundarySoundClip = new SoundClip( innerBoundarySound, { initialOutputLevel: 0.25 } );
       soundManager.addSoundGenerator( innerBoundarySoundClip );
       model.distanceProperty.lazyLink( ( distance, previousDistance ) => {
         if ( distance < previousDistance ) {