diff --git a/cocos/audio/RDAudio.cpp b/cocos/audio/RDAudio.cpp
index 27506848..566f162f 100644
--- a/cocos/audio/RDAudio.cpp
+++ b/cocos/audio/RDAudio.cpp
@@ -169,9 +169,12 @@ void RDAudio::scheduleLoop(float)
     // create OpenAL buffer
     ALuint bufferID = 0;
     if (asyncStruct->pcmData) {
+        // clear old error
+        alGetError();
         alGenBuffers(1, &bufferID);
         if (alGetError() != AL_NO_ERROR) {
             cocos2d::log("Error: RDAudio_LoadFile can't gen OpenAL Buffer");
+            bufferID = 0;
         } else {
             ALenum format = (asyncStruct->channels == 1) ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16;
             alBufferData(bufferID, format, asyncStruct->pcmData, asyncStruct->size, asyncStruct->rate);
diff --git a/quick/framework/audio.lua b/quick/framework/audio.lua
index dd3826ea..511b2f41 100644
--- a/quick/framework/audio.lua
+++ b/quick/framework/audio.lua
@@ -55,7 +55,9 @@ end
 
 --------------- buffer -------------------
 function audio.loadFile(path, callback)
-	if not audio._buffers[path] then
+	if audio._buffers[path] then
+		callback(path, true)
+	else
 		assert(callback, "ONLY support asyn load file, please set callback!")
 		Rapid2D_CAudio.newBuffer(path, function(buffID)
 			if buffID then
diff --git a/quick/samples/test/src/app/views/Test_Audio.lua b/quick/samples/test/src/app/views/Test_Audio.lua
index b592212c..54a1c97f 100755
--- a/quick/samples/test/src/app/views/Test_Audio.lua
+++ b/quick/samples/test/src/app/views/Test_Audio.lua
@@ -82,12 +82,15 @@ function TestCase:loadBtns()
 			audio.pauseAll()
 		end},
 		{"SingleEffect_vol0.5", function()
-			local effect = audio.playEffect("audio/effect.ogg", true)
-			if effect then
-				effect:setVolume(0.5) -- change volume just for this effect
-				self:performWithDelay(function()
-					effect:stop() -- stop looped effect
-				end, 3)
+			if not self._effect then
+				self._effect = audio.playEffect("audio/effect.ogg", true)
+				if self._effect then
+					self._effect:setVolume(0.5) -- change volume just for this effect
+					self:performWithDelay(function()
+						self._effect:stop() -- stop looped effect
+						self._effect = nil
+					end, 3)
+				end
 			end
 		end},
 		{"ResumeAll", function()