diff --git a/configs/common_au/audio_policy_configuration.xml b/configs/common_au/audio_policy_configuration.xml
index 47bdc92..b2d0318 100644
--- a/configs/common_au/audio_policy_configuration.xml
+++ b/configs/common_au/audio_policy_configuration.xml
@@ -165,6 +165,10 @@
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="8000,16000,32000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
                 </mixPort>
+                <mixPort name="echo_ref" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
             </mixPorts>
             <devicePorts>
                 <devicePort tagName="Media Bus" role="sink" type="AUDIO_DEVICE_OUT_BUS"
@@ -316,7 +320,9 @@
                 <route type="mix" sink="Telephony Tx"
                        sources="voice_tx,incall_music_uplink"/>
                 <route type="mix" sink="primary input"
-                       sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,Primary In Bus,Front Passenger In Bus,Rear Seat In Bus,Echo Reference"/>
+                       sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,Primary In Bus,Front Passenger In Bus,Rear Seat In Bus"/>
+                <route type="mix" sink="echo_ref"
+                       sources="Echo Reference"/>
                 <route type="mix" sink="fast input"
                        sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic"/>
                 <route type="mix" sink="voice_rx"
diff --git a/configs/msmnile_au/audio_policy_configuration.xml b/configs/msmnile_au/audio_policy_configuration.xml
index d222622..015a9e9 100644
--- a/configs/msmnile_au/audio_policy_configuration.xml
+++ b/configs/msmnile_au/audio_policy_configuration.xml
@@ -232,6 +232,10 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
                              channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_INDEX_MASK_3"/>
                 </mixPort>
+                <mixPort name="echo_ref" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
             </mixPorts>
 
             <devicePorts>
@@ -435,7 +439,9 @@
                 <route type="mix" sink="voice_rx"
                        sources="Telephony Rx"/>
                 <route type="mix" sink="primary input"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx,Echo Reference"/>
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx"/>
+                <route type="mix" sink="echo_ref"
+                       sources="Echo Reference"/>
                 <route type="mix" sink="voip_tx"
                        sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic"/>
                 <route type="mix" sink="record_24"
diff --git a/configs/msmsteppe_au/audio_policy_configuration.xml b/configs/msmsteppe_au/audio_policy_configuration.xml
index 15e4233..4db3b1e 100644
--- a/configs/msmsteppe_au/audio_policy_configuration.xml
+++ b/configs/msmsteppe_au/audio_policy_configuration.xml
@@ -232,6 +232,10 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
                              channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_INDEX_MASK_3"/>
                 </mixPort>
+                <mixPort name="echo_ref" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
             </mixPorts>
 
             <devicePorts>
@@ -434,7 +438,9 @@
                 <route type="mix" sink="voice_rx"
                        sources="Telephony Rx"/>
                 <route type="mix" sink="primary input"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx,Echo Reference"/>
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx"/>
+                <route type="mix" sink="echo_ref"
+                       sources="Echo Reference"/>
                 <route type="mix" sink="voip_tx"
                        sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic"/>
                 <route type="mix" sink="record_24"