Summary: Constants | Methods

MicrophoneDirection

public interface MicrophoneDirection

android.media.MicrophoneDirection

Known indirect subclasses

AudioRecord The AudioRecord class manages the audio resources for Java applications to record audio from the audio input hardware of the platform.

Summary

Constants
`int`	`MIC_DIRECTION_BACK` Optimize capture for audio coming from the side of the device opposite the screen.
`int`	`MIC_DIRECTION_EXTERNAL` Optimize capture for audio coming from an off-device microphone.
`int`	`MIC_DIRECTION_FRONT` Optimize capture for audio coming from the screen-side of the device.
`int`	`MIC_DIRECTION_UNSPECIFIED` Don't do any directionality processing of the activated microphone(s).

Public methods
`abstract boolean`	`setMicrophoneDirection(int direction)` Specifies the logical microphone (for processing).
`abstract boolean`	`setMicrophoneFieldDimension(float zoom)` Specifies the zoom factor (i.e.

Constants

MIC_DIRECTION_BACK

Added in Android Q

public static final int MIC_DIRECTION_BACK

Optimize capture for audio coming from the side of the device opposite the screen.

Constant Value: 2 (0x00000002)

MIC_DIRECTION_EXTERNAL

Added in Android Q

public static final int MIC_DIRECTION_EXTERNAL

Optimize capture for audio coming from an off-device microphone.

Constant Value: 3 (0x00000003)

MIC_DIRECTION_FRONT

Added in Android Q

public static final int MIC_DIRECTION_FRONT

Optimize capture for audio coming from the screen-side of the device.

Constant Value: 1 (0x00000001)

MIC_DIRECTION_UNSPECIFIED

Added in Android Q

public static final int MIC_DIRECTION_UNSPECIFIED

Don't do any directionality processing of the activated microphone(s).

Constant Value: 0 (0x00000000)

Public methods

setMicrophoneDirection

Added in Android Q

public abstract boolean setMicrophoneDirection (int direction)

Specifies the logical microphone (for processing).

Parameters
`direction`	`int`: Direction constant. Value is `MIC_DIRECTION_UNSPECIFIED`, `MIC_DIRECTION_FRONT`, `MIC_DIRECTION_BACK`, or `MIC_DIRECTION_EXTERNAL`

Returns
`boolean`	true if sucessful.

setMicrophoneFieldDimension

Added in Android Q

public abstract boolean setMicrophoneFieldDimension (float zoom)

Specifies the zoom factor (i.e. the field dimension) for the selected microphone (for processing). The selected microphone is determined by the use-case for the stream.

Parameters
`zoom`	`float`: the desired field dimension of microphone capture. Range is from -1 (wide angle), though 0 (no zoom) to 1 (maximum zoom). Value is between -1.0 and 1.0 inclusive

Returns
`boolean`	true if sucessful.