diff --git a/api/current.txt b/api/current.txt
index f92518f..6e03e0f 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -19365,6 +19365,7 @@
     field public static final deprecated int NUM_STREAMS = 5; // 0x5
     field public static final java.lang.String PROPERTY_OUTPUT_FRAMES_PER_BUFFER = "android.media.property.OUTPUT_FRAMES_PER_BUFFER";
     field public static final java.lang.String PROPERTY_OUTPUT_SAMPLE_RATE = "android.media.property.OUTPUT_SAMPLE_RATE";
+    field public static final java.lang.String PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED = "android.media.property.SUPPORT_AUDIO_SOURCE_UNPROCESSED";
     field public static final java.lang.String PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND = "android.media.property.SUPPORT_MIC_NEAR_ULTRASOUND";
     field public static final java.lang.String PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND = "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND";
     field public static final java.lang.String RINGER_MODE_CHANGED_ACTION = "android.media.RINGER_MODE_CHANGED";
@@ -20725,6 +20726,7 @@
     field public static final int DEFAULT = 0; // 0x0
     field public static final int MIC = 1; // 0x1
     field public static final int REMOTE_SUBMIX = 8; // 0x8
+    field public static final int UNPROCESSED = 9; // 0x9
     field public static final int VOICE_CALL = 4; // 0x4
     field public static final int VOICE_COMMUNICATION = 7; // 0x7
     field public static final int VOICE_DOWNLINK = 3; // 0x3
diff --git a/api/system-current.txt b/api/system-current.txt
index 6bba573..12b9b32 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -20670,6 +20670,7 @@
     field public static final deprecated int NUM_STREAMS = 5; // 0x5
     field public static final java.lang.String PROPERTY_OUTPUT_FRAMES_PER_BUFFER = "android.media.property.OUTPUT_FRAMES_PER_BUFFER";
     field public static final java.lang.String PROPERTY_OUTPUT_SAMPLE_RATE = "android.media.property.OUTPUT_SAMPLE_RATE";
+    field public static final java.lang.String PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED = "android.media.property.SUPPORT_AUDIO_SOURCE_UNPROCESSED";
     field public static final java.lang.String PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND = "android.media.property.SUPPORT_MIC_NEAR_ULTRASOUND";
     field public static final java.lang.String PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND = "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND";
     field public static final java.lang.String RINGER_MODE_CHANGED_ACTION = "android.media.RINGER_MODE_CHANGED";
@@ -22035,6 +22036,7 @@
     field public static final int MIC = 1; // 0x1
     field public static final int RADIO_TUNER = 1998; // 0x7ce
     field public static final int REMOTE_SUBMIX = 8; // 0x8
+    field public static final int UNPROCESSED = 9; // 0x9
     field public static final int VOICE_CALL = 4; // 0x4
     field public static final int VOICE_COMMUNICATION = 7; // 0x7
     field public static final int VOICE_DOWNLINK = 3; // 0x3
diff --git a/api/test-current.txt b/api/test-current.txt
index 66c856f..5e07343 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -19373,6 +19373,7 @@
     field public static final deprecated int NUM_STREAMS = 5; // 0x5
     field public static final java.lang.String PROPERTY_OUTPUT_FRAMES_PER_BUFFER = "android.media.property.OUTPUT_FRAMES_PER_BUFFER";
     field public static final java.lang.String PROPERTY_OUTPUT_SAMPLE_RATE = "android.media.property.OUTPUT_SAMPLE_RATE";
+    field public static final java.lang.String PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED = "android.media.property.SUPPORT_AUDIO_SOURCE_UNPROCESSED";
     field public static final java.lang.String PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND = "android.media.property.SUPPORT_MIC_NEAR_ULTRASOUND";
     field public static final java.lang.String PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND = "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND";
     field public static final java.lang.String RINGER_MODE_CHANGED_ACTION = "android.media.RINGER_MODE_CHANGED";
@@ -20733,6 +20734,7 @@
     field public static final int DEFAULT = 0; // 0x0
     field public static final int MIC = 1; // 0x1
     field public static final int REMOTE_SUBMIX = 8; // 0x8
+    field public static final int UNPROCESSED = 9; // 0x9
     field public static final int VOICE_CALL = 4; // 0x4
     field public static final int VOICE_COMMUNICATION = 7; // 0x7
     field public static final int VOICE_DOWNLINK = 3; // 0x3
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index b6150e0..53a733d 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2362,6 +2362,9 @@
          (range of 18 - 21 kHz). -->
     <bool name="config_supportSpeakerNearUltrasound">true</bool>
 
+    <!-- Whether the Unprocessed audio source supports the required frequency range and level -->
+    <bool name="config_supportAudioSourceUnprocessed">false</bool>
+
     <!-- Flag indicating device support for EAP SIM, AKA, AKA' -->
     <bool name="config_eap_sim_based_auth_supported">true</bool>
 
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 3641061..dc288d5 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -303,6 +303,7 @@
   <java-symbol type="bool" name="config_wifi_turn_off_during_emergency_call" />
   <java-symbol type="bool" name="config_supportMicNearUltrasound" />
   <java-symbol type="bool" name="config_supportSpeakerNearUltrasound" />
+  <java-symbol type="bool" name="config_supportAudioSourceUnprocessed" />
   <java-symbol type="bool" name="config_freeformWindowManagement" />
   <java-symbol type="string" name="config_defaultPictureInPictureBounds" />
   <java-symbol type="string" name="config_centeredPictureInPictureBounds" />
diff --git a/media/java/android/media/AudioAttributes.java b/media/java/android/media/AudioAttributes.java
index 0db6315..606447b5 100644
--- a/media/java/android/media/AudioAttributes.java
+++ b/media/java/android/media/AudioAttributes.java
@@ -529,8 +529,9 @@
          * instance with {@link AudioRecord#AudioRecord(AudioAttributes, AudioFormat, int)}.
          * @param preset one of {@link MediaRecorder.AudioSource#DEFAULT},
          *     {@link MediaRecorder.AudioSource#MIC}, {@link MediaRecorder.AudioSource#CAMCORDER},
-         *     {@link MediaRecorder.AudioSource#VOICE_RECOGNITION} or
-         *     {@link MediaRecorder.AudioSource#VOICE_COMMUNICATION}.
+         *     {@link MediaRecorder.AudioSource#VOICE_RECOGNITION},
+         *     {@link MediaRecorder.AudioSource#VOICE_COMMUNICATION} or
+         *     {@link MediaRecorder.AudioSource#UNPROCESSED}
          * @return the same Builder instance.
          */
         @SystemApi
@@ -541,6 +542,7 @@
                 case MediaRecorder.AudioSource.CAMCORDER:
                 case MediaRecorder.AudioSource.VOICE_RECOGNITION:
                 case MediaRecorder.AudioSource.VOICE_COMMUNICATION:
+                case MediaRecorder.AudioSource.UNPROCESSED:
                     mSource = preset;
                     break;
                 default:
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index ea1690f..5ad6b08 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -3305,12 +3305,19 @@
             "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND";
 
     /**
+     * Used as a key for {@link #getProperty} to determine if the unprocessed audio source is
+     * available and supported with the expected frequency range and level response.
+     */
+    public static final String PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED =
+            "android.media.property.SUPPORT_AUDIO_SOURCE_UNPROCESSED";
+    /**
      * Returns the value of the property with the specified key.
      * @param key One of the strings corresponding to a property key: either
      *            {@link #PROPERTY_OUTPUT_SAMPLE_RATE},
      *            {@link #PROPERTY_OUTPUT_FRAMES_PER_BUFFER},
-     *            {@link #PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND}, or
-     *            {@link #PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND}.
+     *            {@link #PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND},
+     *            {@link #PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND}, or
+     *            {@link #PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED}.
      * @return A string representing the associated value for that property key,
      *         or null if there is no value for that key.
      */
@@ -3329,6 +3336,9 @@
         } else if (PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND.equals(key)) {
             return String.valueOf(getContext().getResources().getBoolean(
                     com.android.internal.R.bool.config_supportSpeakerNearUltrasound));
+        } else if (PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED.equals(key)) {
+            return String.valueOf(getContext().getResources().getBoolean(
+                    com.android.internal.R.bool.config_supportAudioSourceUnprocessed));
         } else {
             // null or unknown key
             return null;
diff --git a/media/java/android/media/MediaRecorder.java b/media/java/android/media/MediaRecorder.java
index 8ac86b0..504c6d0 100644
--- a/media/java/android/media/MediaRecorder.java
+++ b/media/java/android/media/MediaRecorder.java
@@ -251,6 +251,10 @@
          */
         public static final int REMOTE_SUBMIX = 8;
 
+        /** Microphone audio source tuned for unprocessed (raw) sound if available, behaves like
+         *  {@link #DEFAULT} otherwise. */
+        public static final int UNPROCESSED = 9;
+
         /**
          * Audio source for capturing broadcast radio tuner output.
          * @hide
@@ -405,7 +409,7 @@
      * @see android.media.MediaRecorder.AudioSource
      */
     public static final int getAudioSourceMax() {
-        return AudioSource.REMOTE_SUBMIX;
+        return AudioSource.UNPROCESSED;
     }
 
     /**