AudioEffect Class
Definition
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AudioEffect is the base class for controlling audio effects provided by the android audio framework.
[Android.Runtime.Register("android/media/audiofx/AudioEffect", DoNotGenerateAcw=true)]
public class AudioEffect : Java.Lang.Object[<Android.Runtime.Register("android/media/audiofx/AudioEffect", DoNotGenerateAcw=true)>]
type AudioEffect = class
inherit Object- Inheritance
- Derived
- Attributes
Remarks
AudioEffect is the base class for controlling audio effects provided by the android audio framework.
Applications should not use the AudioEffect class directly but one of its derived classes to control specific effects: <ul> <li> android.media.audiofx.Equalizer</li> <li> android.media.audiofx.Virtualizer</li> <li> android.media.audiofx.BassBoost</li> <li> android.media.audiofx.PresetReverb</li> <li> android.media.audiofx.EnvironmentalReverb</li> <li> android.media.audiofx.DynamicsProcessing</li> <li> android.media.audiofx.HapticGenerator</li> </ul>
To apply the audio effect to a specific AudioTrack or MediaPlayer instance, the application must specify the audio session ID of that instance when creating the AudioEffect. (see android.media.MediaPlayer#getAudioSessionId() for details on audio sessions).
NOTE: attaching insert effects (equalizer, bass boost, virtualizer) to the global audio output mix by use of session 0 is deprecated.
Creating an AudioEffect object will create the corresponding effect engine in the audio framework if no instance of the same effect type exists in the specified audio session. If one exists, this instance will be used.
The application creating the AudioEffect object (or a derived class) will either receive control of the effect engine or not depending on the priority parameter. If priority is higher than the priority used by the current effect engine owner, the control will be transfered to the new object. Otherwise control will remain with the previous object. In this case, the new application will be notified of changes in effect engine state or control ownership by the appropriate listener.
Java documentation for android.media.audiofx.AudioEffect.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| AudioEffect(IntPtr, JniHandleOwnership) |
A constructor used when creating managed representations of JNI objects; called by the runtime. |
Fields
| ActionCloseAudioEffectControlSession |
Intent to signal to the effect control application or service that an audio session is closed and that effects should not be applied anymore. |
| ActionDisplayAudioEffectControlPanel |
Intent to launch an audio effect control panel UI. |
| ActionOpenAudioEffectControlSession |
Intent to signal to the effect control application or service that a new audio session is opened and requires audio effects to be applied. |
| AlreadyExists |
Obsolete.
Internal operation status. |
| ContentTypeGame |
Obsolete.
Value for |
| ContentTypeMovie |
Obsolete.
Value for |
| ContentTypeMusic |
Obsolete.
Value for |
| ContentTypeVoice |
Obsolete.
Value for |
| EffectAuxiliary |
Effect connection mode is auxiliary. |
| EffectInsert |
Effect connection mode is insert. |
| EffectPostProcessing |
Effect connection mode is post processing. |
| EffectPreProcessing |
Effect connection mode is pre processing. |
| Error |
Obsolete.
Unspecified error. |
| ErrorBadValue |
Obsolete.
Operation failed due to bad parameter value. |
| ErrorDeadObject |
Obsolete.
Operation failed due to dead remote object. |
| ErrorInvalidOperation |
Obsolete.
Operation failed because it was requested in wrong state. |
| ErrorNoInit |
Obsolete.
Operation failed due to bad object initialization. |
| ErrorNoMemory |
Obsolete.
Operation failed due to lack of memory. |
| ExtraAudioSession |
Contains the ID of the audio session the effects should be applied to. |
| ExtraContentType |
Indicates which type of content is played by the application. |
| ExtraPackageName |
Contains the package name of the calling application. |
| Success |
Obsolete.
Successful operation. |
Properties
| Class |
Returns the runtime class of this |
| EffectTypeAec |
UUID for Acoustic Echo Canceler (AEC) |
| EffectTypeAgc |
UUID for Automatic Gain Control (AGC) |
| EffectTypeBassBoost |
UUID for bass boost effect |
| EffectTypeDynamicsProcessing |
UUID for Dynamics Processing |
| EffectTypeEnvReverb |
UUID for environmental reverberation effect |
| EffectTypeEqualizer |
UUID for equalizer effect |
| EffectTypeHapticGenerator |
The following UUIDs define effect types corresponding to standard audio effects whose implementation and interface conform to the OpenSL ES specification. |
| EffectTypeLoudnessEnhancer |
UUID for Loudness Enhancer |
| EffectTypeNs |
UUID for Noise Suppressor (NS) |
| EffectTypePresetReverb |
UUID for preset reverberation effect |
| EffectTypeVirtualizer |
UUID for virtualizer effect |
| Enabled |
Returns effect enabled state |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| HasControl |
Checks if this AudioEffect object is controlling the effect engine. |
| Id |
Returns effect unique identifier. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| PeerReference | (Inherited from Object) |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
Methods
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetDescriptor() |
Get the effect descriptor. |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| QueryEffects() |
Query all effects available on the platform. |
| Release() |
Releases the native AudioEffect resources. |
| SetControlStatusListener(AudioEffect+IOnControlStatusChangeListener) |
Sets the listener AudioEffect notifies when the effect engine control is taken or returned. |
| SetEnabled(Boolean) |
Enable or disable the effect. |
| SetEnableStatusListener(AudioEffect+IOnEnableStatusChangeListener) |
Sets the listener AudioEffect notifies when the effect engine is enabled or disabled. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() | (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Events
| ControlStatus | |
| EnableStatus |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |