diff --git a/media/libeffects/data/audio_effects.conf b/media/libeffects/data/audio_effects.conf
index e6a7b37..b8fa487 100644
--- a/media/libeffects/data/audio_effects.conf
+++ b/media/libeffects/data/audio_effects.conf
@@ -1,5 +1,10 @@
 # List of effect libraries to load. Each library element must contain a "path" element
 # giving the full path of the library .so file.
+#    libraries {
+#        <lib name> {
+#          path <lib path>
+#        }
+#    }
 libraries {
   bundle {
     path /system/lib/soundfx/libbundlewrapper.so
@@ -10,6 +15,9 @@
   visualizer {
     path /system/lib/soundfx/libvisualizer.so
   }
+  pre_processing {
+    path /system/lib/soundfx/libaudiopreprocessing.so
+  }
 }
 
 # list of effects to load. Each effect element must contain a "library" and a "uuid" element.
@@ -17,6 +25,16 @@
 # "libraries" element.
 # The name of the effect element is indicative, only the value of the "uuid" element
 # designates the effect.
+# The uuid is the implementation specific UUID as specified by the effect vendor. This is not the
+# generic effect type UUID.
+#    effects {
+#        <fx name> {
+#            library <lib name>
+#            uuid <effect uuid>
+#        }
+#        ...
+#    }
+
 effects {
   bassboost {
     library bundle
@@ -54,4 +72,55 @@
     library visualizer
     uuid d069d9e0-8329-11df-9168-0002a5d5c51b
   }
+  agc {
+    library pre_processing
+    uuid aa8130e0-66fc-11e0-bad0-0002a5d5c51b
+  }
+  aec {
+    library pre_processing
+    uuid bb392ec0-8d4d-11e0-a896-0002a5d5c51b
+  }
+  ns {
+    library pre_processing
+    uuid c06c8400-8e06-11e0-9cb6-0002a5d5c51b
+  }
 }
+# Audio preprocessor configurations.
+# The pre processor configuration consists in a list of elements each describing
+# pre processor settings for a given input source. Valid input source names are:
+# "mic", "camcorder", "voice_recognition", "voice_communication"
+# Each input source element contains a list of effects elements. The name of the effect
+# element must be the name of one of the effects in the "effects" list of the file.
+# Each effect element may optionally contain a list of parameters and their
+# default value to apply when the pre processor effect is created.
+# A parameter is defined by a "param" element and a "value" element. Each of these elements
+# consists in one or more elements specifying a type followed by a value.
+# The types defined are: "int", "short", "float", "bool" and "string"
+# When both "param" and "value" are a single int, a simple form is allowed where just
+# the param and value pair is present in the parameter description
+#    pre_processing {
+#        <input source name> {
+#            <fx name> {
+#                <param 1 name> {
+#                    param {
+#                        int|short|float|bool|string <value>
+#                        [ int|short|float|bool|string <value> ]
+#                        ...
+#                    }
+#                    value {
+#                        int|short|float|bool|string <value>
+#                        [ int|short|float|bool|string <value> ]
+#                        ...
+#                    }
+#                }
+#                <param 2 name > {<param> <value>}
+#                ...
+#            }
+#            ...
+#        }
+#        ...
+#    }
+
+#
+# TODO: add default audio pre processor configurations after debug and tuning phase
+#
diff --git a/media/libeffects/factory/Android.mk b/media/libeffects/factory/Android.mk
index 26265ae..2f2b974 100644
--- a/media/libeffects/factory/Android.mk
+++ b/media/libeffects/factory/Android.mk
@@ -14,4 +14,7 @@
 
 LOCAL_SHARED_LIBRARIES += libdl
 
+LOCAL_C_INCLUDES := \
+    system/media/audio_effects/include
+
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/factory/EffectsFactory.c b/media/libeffects/factory/EffectsFactory.c
index a9689bc..d333510 100644
--- a/media/libeffects/factory/EffectsFactory.c
+++ b/media/libeffects/factory/EffectsFactory.c
@@ -24,6 +24,7 @@
 
 #include <cutils/misc.h>
 #include <cutils/config_utils.h>
+#include <audio_effects/audio_effects_conf.h>
 
 static list_elem_t *gEffectList; // list of effect_entry_t: all currently created effects
 static list_elem_t *gLibraryList; // list of lib_entry_t: all currently loaded libraries
diff --git a/media/libeffects/factory/EffectsFactory.h b/media/libeffects/factory/EffectsFactory.h
index fcc0dba..c1d4319 100644
--- a/media/libeffects/factory/EffectsFactory.h
+++ b/media/libeffects/factory/EffectsFactory.h
@@ -26,13 +26,6 @@
 extern "C" {
 #endif
 
-#define AUDIO_EFFECT_DEFAULT_CONFIG_FILE "/system/etc/audio_effects.conf"
-#define AUDIO_EFFECT_VENDOR_CONFIG_FILE "/vendor/etc/audio_effects.conf"
-#define EFFECTS_TAG "effects"
-#define LIBRARIES_TAG "libraries"
-#define PATH_TAG "path"
-#define LIBRARY_TAG "library"
-#define UUID_TAG "uuid"
 
 typedef struct list_elem_s {
     void *object;