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Added in API level 19

LoudnessEnhancer

public class LoudnessEnhancer
extends AudioEffect

java.lang.Object
↳	android.media.audiofx.AudioEffect
	↳	android.media.audiofx.LoudnessEnhancer

LoudnessEnhancer is an audio effect for increasing audio loudness. The processing is parametrized by a target gain value, which determines the maximum amount by which an audio signal will be amplified; signals amplified outside of the sample range supported by the platform are compressed. An application creates a LoudnessEnhancer object to instantiate and control a this audio effect in the audio framework. To attach the LoudnessEnhancer to a particular AudioTrack or MediaPlayer, specify the audio session ID of this AudioTrack or MediaPlayer when constructing the effect (see getAudioSessionId() and getAudioSessionId()).

Summary

Constants
`int`	`PARAM_TARGET_GAIN_MB` The maximum gain applied applied to the signal to process.

Inherited constants

From class


    android.media.audiofx.AudioEffect

Inherited fields

From class


    android.media.audiofx.AudioEffect

Public constructors
`LoudnessEnhancer(int audioSession)` Class constructor.

Public methods
`float`	`getTargetGain()` Return the target gain.
`void`	`setTargetGain(int gainmB)` Set the target gain for the audio effect.

Inherited methods

From class


  
    android.media.audiofx.AudioEffect

`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`AudioEffect.Descriptor`	`getDescriptor()` Get the effect descriptor.
`boolean`	`getEnabled()` Returns effect enabled state
`int`	`getId()` Returns effect unique identifier.
`boolean`	`hasControl()` Checks if this AudioEffect object is controlling the effect engine.
`static Descriptor[]`	`queryEffects()` Query all effects available on the platform.
`void`	`release()` Releases the native AudioEffect resources.
`void`	`setControlStatusListener(AudioEffect.OnControlStatusChangeListener listener)` Sets the listener AudioEffect notifies when the effect engine control is taken or returned.
`void`	`setEnableStatusListener(AudioEffect.OnEnableStatusChangeListener listener)` Sets the listener AudioEffect notifies when the effect engine is enabled or disabled.
`int`	`setEnabled(boolean enabled)` Enable or disable the effect.

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.
`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 millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Constants

PARAM_TARGET_GAIN_MB

Added in API level 19

int PARAM_TARGET_GAIN_MB

The maximum gain applied applied to the signal to process. It is expressed in millibels (100mB = 1dB) where 0mB corresponds to no amplification.

Constant Value: 0 (0x00000000)

Public constructors