MediaRecorder.AudioSource  |  API reference  |  Android
Developers
Archived: 2026-04-05 18:53:24 UTC
public final class MediaRecorder.AudioSource
extends Object
Defines the audio source. An audio source defines both a default physical source of audio signal, and a recording
configuration. These constants are for instance used in MediaRecorder.setAudioSource(int) or
AudioRecord.Builder.setAudioSource(int) .
Summary
Constants
int
CAMCORDER
Microphone audio source tuned for video recording, with the same orientation as the camera if
available.
int
DEFAULT
Default audio source *
int
MIC
Microphone audio source
int
REMOTE_SUBMIX
Audio source for a submix of audio streams to be presented remotely.
int
UNPROCESSED
Microphone audio source tuned for unprocessed (raw) sound if available, behaves like DEFAULT
otherwise.
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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int
VOICE_CALL
Voice call uplink + downlink audio source
Capturing from VOICE_CALL source requires the Manifest.permission.CAPTURE_AUDIO_OUTPUT
permission.
int
VOICE_COMMUNICATION
Microphone audio source tuned for voice communications such as VoIP.
int
VOICE_DOWNLINK
Voice call downlink (Rx) audio source.
int
VOICE_PERFORMANCE
Source for capturing audio meant to be processed in real time and played back for live performance
(e.g karaoke).
int
VOICE_RECOGNITION
Microphone audio source tuned for voice recognition.
int
VOICE_UPLINK
Voice call uplink (Tx) audio source.
Inherited methods
From class java.lang.Object
Object
clone()
Creates and returns a copy of this object.
boolean
equals(Object obj)
Indicates whether some other object is "equal to" this one.
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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void
finalize()
Called by the garbage collector on an object when garbage collection determines that
there are no more references to the object.
final
Class<?>
getClass()
Returns the runtime class of this Object .
int
hashCode()
Returns a hash code value for the object.
final void
notify()
Wakes up a single thread that is waiting on this object's monitor.
final void
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
String
toString()
Returns a string representation of the object.
final void
wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically by being notified or
interrupted, or until a certain amount of real time has elapsed.
final void
wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically by being notified or
interrupted, or until a certain amount of real time has elapsed.
final void
wait()
Causes the current thread to wait until it is awakened, typically by being notified or
interrupted.
Constants
CAMCORDER
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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public static final int CAMCORDER
Microphone audio source tuned for video recording, with the same orientation as the camera if available.
Constant Value: 5 (0x00000005)
DEFAULT
public static final int DEFAULT
Default audio source *
Constant Value: 0 (0x00000000)
MIC
public static final int MIC
Microphone audio source
Constant Value: 1 (0x00000001)
REMOTE_SUBMIX
public static final int REMOTE_SUBMIX
Audio source for a submix of audio streams to be presented remotely.
An application can use this audio source to capture a mix of audio streams that should be transmitted to a remote
receiver such as a Wifi display. While recording is active, these audio streams are redirected to the remote submix
instead of being played on the device speaker or headset.
Certain streams are excluded from the remote submix, including AudioManager.STREAM_RING ,
AudioManager.STREAM_ALARM , and AudioManager.STREAM_NOTIFICATION . These streams will continue to be
presented locally as usual.
Capturing the remote submix audio requires the Manifest.permission.CAPTURE_AUDIO_OUTPUT permission. This
permission is reserved for use by system components and is not available to third-party applications.
.
Requires Manifest.permission.CAPTURE_AUDIO_OUTPUT
Constant Value: 8 (0x00000008)
UNPROCESSED
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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public static final int UNPROCESSED
Microphone audio source tuned for unprocessed (raw) sound if available, behaves like DEFAULT otherwise.
Constant Value: 9 (0x00000009)
VOICE_CALL
public static final int VOICE_CALL
Voice call uplink + downlink audio source
Capturing from VOICE_CALL source requires the Manifest.permission.CAPTURE_AUDIO_OUTPUT permission. This
permission is reserved for use by system components and is not available to third-party applications.
Constant Value: 4 (0x00000004)
VOICE_COMMUNICATION
public static final int VOICE_COMMUNICATION
Microphone audio source tuned for voice communications such as VoIP. It will for instance take advantage of
echo cancellation or automatic gain control if available.
Constant Value: 7 (0x00000007)
VOICE_DOWNLINK
public static final int VOICE_DOWNLINK
Voice call downlink (Rx) audio source.
Capturing from VOICE_DOWNLINK source requires the Manifest.permission.CAPTURE_AUDIO_OUTPUT permission.
This permission is reserved for use by system components and is not available to third-party applications.
Constant Value: 3 (0x00000003)
VOICE_PERFORMANCE
public static final int VOICE_PERFORMANCE
Source for capturing audio meant to be processed in real time and played back for live performance (e.g karaoke).
The capture path will minimize latency and coupling with playback path.
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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Constant Value: 10 (0x0000000a)
VOICE_RECOGNITION
public static final int VOICE_RECOGNITION
Microphone audio source tuned for voice recognition.
Constant Value: 6 (0x00000006)
VOICE_UPLINK
public static final int VOICE_UPLINK
Voice call uplink (Tx) audio source.
Capturing from VOICE_UPLINK source requires the Manifest.permission.CAPTURE_AUDIO_OUTPUT permission.
This permission is reserved for use by system components and is not available to third-party applications.
Constant Value: 2 (0x00000002)
Source: https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_CALL
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