diff --git a/audio/5.0/Android.bp b/audio/5.0/Android.bp
index ee023e3..7c2db1d 100644
--- a/audio/5.0/Android.bp
+++ b/audio/5.0/Android.bp
@@ -20,6 +20,7 @@
         "android.hardware.audio.common@5.0",
         "android.hardware.audio.effect@5.0",
         "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
     ],
     types: [
         "AudioDrain",
@@ -28,8 +29,8 @@
         "AudioMicrophoneCoordinate",
         "AudioMicrophoneDirectionality",
         "AudioMicrophoneLocation",
-        "DeviceAddress",
         "MessageQueueFlagBits",
+        "MicrophoneDirection",
         "MicrophoneInfo",
         "MmapBufferFlag",
         "MmapBufferInfo",
diff --git a/audio/5.0/IDevice.hal b/audio/5.0/IDevice.hal
index afb4fad..9e45ba5 100644
--- a/audio/5.0/IDevice.hal
+++ b/audio/5.0/IDevice.hal
@@ -133,7 +133,7 @@
      * @param config stream configuration.
      * @param flags additional flags.
      * @param sinkMetadata Description of the audio that is suggested by the client.
-     *                     May be used by implementations to configure hardware effects.
+     *                     May be used by implementations to configure processing effects.
      * @return retval operation completion status.
      * @return inStream in case of success, created input stream.
      * @return suggestedConfig in case of invalid parameters, suggested config.
diff --git a/audio/5.0/IStreamIn.hal b/audio/5.0/IStreamIn.hal
index d33cfdc..b042960 100644
--- a/audio/5.0/IStreamIn.hal
+++ b/audio/5.0/IStreamIn.hal
@@ -165,4 +165,27 @@
      */
     getActiveMicrophones()
                generates(Result retval, vec<MicrophoneInfo> microphones);
+
+    /**
+     * Specifies the logical microphone (for processing).
+     *
+     * Optional method
+     *
+     * @param Direction constant
+     * @return retval OK if the call is successful, an error code otherwise.
+     */
+    setMicrophoneDirection(MicrophoneDirection direction)
+               generates(Result retval);
+
+    /**
+     * Specifies the zoom factor for the selected microphone (for processing).
+     *
+     * Optional method
+     *
+     * @param the desired field dimension of microphone capture. Range is from -1 (wide angle),
+     * though 0 (no zoom) to 1 (maximum zoom).
+     *
+     * @return retval OK if the call is not successful, an error code otherwise.
+     */
+    setMicrophoneFieldDimension(float zoom) generates(Result retval);
 };
diff --git a/audio/5.0/types.hal b/audio/5.0/types.hal
index 988f584..2c153c6 100644
--- a/audio/5.0/types.hal
+++ b/audio/5.0/types.hal
@@ -49,34 +49,11 @@
     uint64_t tvNSec;  // nanoseconds
 };
 
-/**
- * IEEE 802 MAC address.
- */
-typedef uint8_t[6] MacAddress;
-
 struct ParameterValue {
     string key;
     string value;
 };
 
-/**
- * Specifies a device in case when several devices of the same type
- * can be connected (e.g. BT A2DP, USB).
- */
-struct DeviceAddress {
-    AudioDevice device;  // discriminator
-    union Address {
-        MacAddress mac;     // used for BLUETOOTH_A2DP_*
-        uint8_t[4] ipv4;    // used for IP
-        struct Alsa {
-            int32_t card;
-            int32_t device;
-        } alsa;             // used for USB_*
-    } address;
-    string busAddress;      // used for BUS
-    string rSubmixAddress;  // used for REMOTE_SUBMIX
-};
-
 enum MmapBufferFlag : uint32_t {
     NONE    = 0x0,
     /**
@@ -244,3 +221,29 @@
      */
     AudioMicrophoneCoordinate               orientation;
 };
+
+/**
+ * Constants used by the HAL to determine how to select microphones and process those inputs in
+ * order to optimize for capture in the specified direction.
+ *
+ * MicrophoneDirection Constants are defined in MicrophoneDirection.java.
+ */
+@export(name="audio_microphone_direction_t", value_prefix="MIC_DIRECTION_")
+enum MicrophoneDirection : int32_t {
+    /**
+     * Don't do any directionality processing of the activated microphone(s).
+     */
+    UNSPECIFIED = 0,
+    /**
+     * Optimize capture for audio coming from the screen-side of the device.
+     */
+    FRONT = 1,
+    /**
+     * Optimize capture for audio coming from the side of the device opposite the screen.
+     */
+    BACK = 2,
+    /**
+     * Optimize capture for audio coming from an off-device microphone.
+     */
+    EXTERNAL = 3,
+};