diff --git a/audio_policy_volumes.xml b/audio_policy_volumes.xml
index a5448b5..2445840 100644
--- a/audio_policy_volumes.xml
+++ b/audio_policy_volumes.xml
@@ -50,6 +50,8 @@ volume index from 0 to 100.
         <point>86,-550</point>
         <point>100,0</point>
     </volume>
+    <volume stream="AUDIO_STREAM_VOICE_CALL" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                             ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_SYSTEM" deviceCategory="DEVICE_CATEGORY_HEADSET">
         <point>1,-3000</point>
         <point>33,-2600</point>
@@ -62,6 +64,8 @@ volume index from 0 to 100.
                                          ref="DEFAULT_SYSTEM_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_SYSTEM" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                          ref="DEFAULT_DEVICE_CATEGORY_EXT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_SYSTEM" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                         ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_RING" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                        ref="DEFAULT_DEVICE_CATEGORY_HEADSET_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_RING" deviceCategory="DEVICE_CATEGORY_SPEAKER">
@@ -74,6 +78,8 @@ volume index from 0 to 100.
                                        ref="DEFAULT_DEVICE_CATEGORY_EARPIECE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_RING" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                        ref="DEFAULT_DEVICE_CATEGORY_EXT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_RING" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                       ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                         ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER">
@@ -92,6 +98,8 @@ volume index from 0 to 100.
                                         ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                         ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                        ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ALARM" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                         ref="DEFAULT_NON_MUTABLE_HEADSET_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ALARM" deviceCategory="DEVICE_CATEGORY_SPEAKER">
@@ -104,6 +112,8 @@ volume index from 0 to 100.
                                         ref="DEFAULT_NON_MUTABLE_EARPIECE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ALARM" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                         ref="DEFAULT_NON_MUTABLE_EXT_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ALARM" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                        ref="DEFAULT_NON_MUTABLE_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_NOTIFICATION" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                                ref="DEFAULT_DEVICE_CATEGORY_HEADSET_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_NOTIFICATION" deviceCategory="DEVICE_CATEGORY_SPEAKER">
@@ -116,6 +126,8 @@ volume index from 0 to 100.
                                                ref="DEFAULT_DEVICE_CATEGORY_EARPIECE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_NOTIFICATION" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                                ref="DEFAULT_DEVICE_CATEGORY_EXT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_NOTIFICATION" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                               ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_BLUETOOTH_SCO" deviceCategory="DEVICE_CATEGORY_HEADSET">
         <point>0,-4200</point>
         <point>33,-2800</point>
@@ -136,6 +148,8 @@ volume index from 0 to 100.
     </volume>
     <volume stream="AUDIO_STREAM_BLUETOOTH_SCO" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                                 ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_BLUETOOTH_SCO" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                                ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ENFORCED_AUDIBLE" deviceCategory="DEVICE_CATEGORY_HEADSET">
         <point>1,-3000</point>
         <point>33,-2600</point>
@@ -148,6 +162,8 @@ volume index from 0 to 100.
                                                    ref="DEFAULT_SYSTEM_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ENFORCED_AUDIBLE" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                                    ref="DEFAULT_DEVICE_CATEGORY_EXT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ENFORCED_AUDIBLE" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                                   ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_DTMF" deviceCategory="DEVICE_CATEGORY_HEADSET">
         <point>1,-3000</point>
         <point>33,-2600</point>
@@ -160,6 +176,8 @@ volume index from 0 to 100.
                                        ref="DEFAULT_SYSTEM_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_DTMF" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                        ref="DEFAULT_DEVICE_CATEGORY_EXT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_DTMF" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                       ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_TTS" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                       ref="SILENT_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_TTS" deviceCategory="DEVICE_CATEGORY_SPEAKER"
@@ -168,6 +186,8 @@ volume index from 0 to 100.
                                       ref="SILENT_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_TTS" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                       ref="SILENT_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_TTS" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                      ref="SILENT_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ACCESSIBILITY" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                                 ref="DEFAULT_NON_MUTABLE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ACCESSIBILITY" deviceCategory="DEVICE_CATEGORY_SPEAKER"
@@ -176,6 +196,8 @@ volume index from 0 to 100.
                                                 ref="DEFAULT_NON_MUTABLE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ACCESSIBILITY" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                                 ref="DEFAULT_NON_MUTABLE_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ACCESSIBILITY" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                                ref="DEFAULT_NON_MUTABLE_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                             ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_SPEAKER"
@@ -184,6 +206,8 @@ volume index from 0 to 100.
                                             ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                             ref="FULL_SCALE_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                            ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_PATCH" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                         ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_PATCH" deviceCategory="DEVICE_CATEGORY_SPEAKER"
@@ -192,5 +216,7 @@ volume index from 0 to 100.
                                         ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_PATCH" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
                                         ref="FULL_SCALE_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_PATCH" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                        ref="FULL_SCALE_VOLUME_CURVE"/>
 </volumes>