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MediaRecorder.AudioSource

public final class MediaRecorder.AudioSource
extends Object

java.lang.Object
   ↳ android.media.MediaRecorder.AudioSource


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 setAudioSource(int) or setAudioSource(int).

Summary

Constants

int CAMCORDER

Microphone audio source with same orientation as camera if available, the main device microphone otherwise

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.

int VOICE_CALL

Voice call uplink + downlink audio source

Capturing from VOICE_CALL source requires the 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_RECOGNITION

Microphone audio source tuned for voice recognition if available, behaves like DEFAULT otherwise.

int VOICE_UPLINK

Voice call uplink (Tx) audio source.

Inherited methods

From class java.lang.Object

Constants

CAMCORDER

Added in API level 7
int CAMCORDER

Microphone audio source with same orientation as camera if available, the main device microphone otherwise

Constant Value: 5 (0x00000005)

DEFAULT

Added in API level 1
int DEFAULT

Default audio source

Constant Value: 0 (0x00000000)

MIC

Added in API level 1
int MIC

Microphone audio source

Constant Value: 1 (0x00000001)

REMOTE_SUBMIX

Added in API level 19
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 STREAM_RING, STREAM_ALARM, and STREAM_NOTIFICATION. These streams will continue to be presented locally as usual.

Capturing the remote submix audio requires the CAPTURE_AUDIO_OUTPUT permission. This permission is reserved for use by system components and is not available to third-party applications.

Constant Value: 8 (0x00000008)

UNPROCESSED

Added in API level 24
int UNPROCESSED

Microphone audio source tuned for unprocessed (raw) sound if available, behaves like DEFAULT otherwise.

Constant Value: 9 (0x00000009)

VOICE_CALL

Added in API level 4
int VOICE_CALL

Voice call uplink + downlink audio source

Capturing from VOICE_CALL source requires the 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

Added in API level 11
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. It otherwise behaves like DEFAULT if no voice processing is applied.

Constant Value: 7 (0x00000007)

VOICE_DOWNLINK

Added in API level 4
int VOICE_DOWNLINK

Voice call downlink (Rx) audio source.

Capturing from VOICE_DOWNLINK source requires the 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_RECOGNITION

Added in API level 7
int VOICE_RECOGNITION

Microphone audio source tuned for voice recognition if available, behaves like DEFAULT otherwise.

Constant Value: 6 (0x00000006)

VOICE_UPLINK

Added in API level 4
int VOICE_UPLINK

Voice call uplink (Tx) audio source.

Capturing from VOICE_UPLINK source requires the 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)

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