AudioRecord AudioRecord Class

Definition

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

[Android.Runtime.Register("android/media/AudioRecord", ApiSince=3, DoNotGenerateAcw=true)]
public class AudioRecord : Java.Lang.Object
type AudioRecord = class
    inherit Object
Inheritance
AudioRecordAudioRecord
Attributes

Remarks

Android platform documentation

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

AudioRecord(AudioSource, Int32, ChannelIn, Encoding, Int32) AudioRecord(AudioSource, Int32, ChannelIn, Encoding, Int32)

Class constructor.

AudioRecord(IntPtr, JniHandleOwnership) AudioRecord(IntPtr, JniHandleOwnership)

A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

AudioFormat AudioFormat

Returns the configured audio data encoding.

AudioSessionId AudioSessionId

Returns the audio session ID.

AudioSource AudioSource

Returns the audio recording source.

BufferSizeInFrames BufferSizeInFrames
ChannelConfiguration ChannelConfiguration

Returns the configured channel position mask.

ChannelCount ChannelCount

Returns the configured number of channels.

Class Class

Returns the unique instance of Class that represents this object's class.

(Inherited from Object)
Format Format
Handle Handle

The handle to the underlying Android instance.

(Inherited from Object)
IJavaObjectEx.IsProxy IJavaObjectEx.IsProxy Inherited from Object
IJavaObjectEx.KeyHandle IJavaObjectEx.KeyHandle Inherited from Object
IJavaObjectEx.NeedsActivation IJavaObjectEx.NeedsActivation Inherited from Object
IJavaPeerable.JniManagedPeerState IJavaPeerable.JniManagedPeerState Inherited from Object
JniIdentityHashCode JniIdentityHashCode Inherited from Object
JniPeerMembers JniPeerMembers
NotificationMarkerPosition NotificationMarkerPosition

Returns the notification marker position expressed in frames.

PeerReference PeerReference Inherited from Object
PositionNotificationPeriod PositionNotificationPeriod

Returns the notification update period expressed in frames.

PreferredDevice PreferredDevice
RecordingState RecordingState

Returns the recording state of the AudioRecord instance.

RoutedDevice RoutedDevice
SampleRate SampleRate

Returns the configured audio data sample rate in Hz

State State

Returns the state of the AudioRecord instance.

ThresholdClass ThresholdClass

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

ThresholdType ThresholdType

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

AddOnRoutingChangedListener(AudioRecord+IOnRoutingChangedListener, Handler) AddOnRoutingChangedListener(AudioRecord+IOnRoutingChangedListener, Handler)
Clone() Clone()

Creates and returns a copy of this Object.

(Inherited from Object)
Dispose() Dispose() Inherited from Object
Dispose(Boolean) Dispose(Boolean) Inherited from Object
Equals(Object) Equals(Object)

Compares this instance with the specified object and indicates if they are equal.

(Inherited from Object)
GetHashCode() GetHashCode()

Returns an integer hash code for this object.

(Inherited from Object)
GetMinBufferSize(Int32, ChannelIn, Encoding) GetMinBufferSize(Int32, ChannelIn, Encoding)

Returns the minimum buffer size required for the successful creation of an AudioRecord object, in byte units.

GetTimestamp(AudioTimestamp, AudioTimebase) GetTimestamp(AudioTimestamp, AudioTimebase)
JavaFinalize() JavaFinalize()

Invoked when the garbage collector has detected that this instance is no longer reachable.

(Inherited from Object)
Notify() Notify()

Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
NotifyAll() NotifyAll()

Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
Read(ByteBuffer, Int32) Read(ByteBuffer, Int32)

Reads audio data from the audio hardware for recording into a direct buffer.

Read(ByteBuffer, Int32, Int32) Read(ByteBuffer, Int32, Int32)
Read(Byte[], Int32, Int32) Read(Byte[], Int32, Int32)

Reads audio data from the audio hardware for recording into a byte array.

Read(Byte[], Int32, Int32, Int32) Read(Byte[], Int32, Int32, Int32)
Read(Int16[], Int32, Int32) Read(Int16[], Int32, Int32)

Reads audio data from the audio hardware for recording into a short array.

Read(Int16[], Int32, Int32, Int32) Read(Int16[], Int32, Int32, Int32)
Read(Single[], Int32, Int32, Int32) Read(Single[], Int32, Int32, Int32)
ReadAsync(ByteBuffer, Int32) ReadAsync(ByteBuffer, Int32)
ReadAsync(ByteBuffer, Int32, Int32) ReadAsync(ByteBuffer, Int32, Int32)
ReadAsync(Byte[], Int32, Int32) ReadAsync(Byte[], Int32, Int32)
ReadAsync(Byte[], Int32, Int32, Int32) ReadAsync(Byte[], Int32, Int32, Int32)
ReadAsync(Int16[], Int32, Int32) ReadAsync(Int16[], Int32, Int32)
ReadAsync(Int16[], Int32, Int32, Int32) ReadAsync(Int16[], Int32, Int32, Int32)
ReadAsync(Single[], Int32, Int32, Int32) ReadAsync(Single[], Int32, Int32, Int32)
Release() Release()

Releases the native AudioRecord resources.

RemoveOnRoutingChangedListener(AudioRecord+IOnRoutingChangedListener) RemoveOnRoutingChangedListener(AudioRecord+IOnRoutingChangedListener)
SetHandle(IntPtr, JniHandleOwnership) SetHandle(IntPtr, JniHandleOwnership)

Sets the Handle property.

(Inherited from Object)
SetNotificationMarkerPosition(Int32) SetNotificationMarkerPosition(Int32)
SetPositionNotificationPeriod(Int32) SetPositionNotificationPeriod(Int32)
SetPreferredDevice(AudioDeviceInfo) SetPreferredDevice(AudioDeviceInfo)
SetRecordPositionUpdateListener(AudioRecord+IOnRecordPositionUpdateListener) SetRecordPositionUpdateListener(AudioRecord+IOnRecordPositionUpdateListener)

Sets the listener the AudioRecord notifies when a previously set marker is reached or for each periodic record head position update.

SetRecordPositionUpdateListener(AudioRecord+IOnRecordPositionUpdateListener, Handler) SetRecordPositionUpdateListener(AudioRecord+IOnRecordPositionUpdateListener, Handler)

Sets the listener the AudioRecord notifies when a previously set marker is reached or for each periodic record head position update.

StartRecording() StartRecording()

Starts recording from the AudioRecord instance.

StartRecording(MediaSyncEvent) StartRecording(MediaSyncEvent)

Starts recording from the AudioRecord instance when the specified synchronization event occurs on the specified audio session.

Stop() Stop()

Stops recording.

ToArray<T>() ToArray<T>() Inherited from Object
ToString() ToString()

Returns a string containing a concise, human-readable description of this object.

(Inherited from Object)
UnregisterFromRuntime() UnregisterFromRuntime() Inherited from Object
Wait() Wait()

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

(Inherited from Object)
Wait(Int64) Wait(Int64)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)
Wait(Int64, Int32) Wait(Int64, Int32)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)

Events

MarkerReached MarkerReached
PeriodicNotification PeriodicNotification

Explicit Interface Implementations

IJavaObjectEx.ToLocalJniHandle() IJavaObjectEx.ToLocalJniHandle() Inherited from Object
IJavaPeerable.Disposed() IJavaPeerable.Disposed() Inherited from Object
IJavaPeerable.DisposeUnlessReferenced() IJavaPeerable.DisposeUnlessReferenced() Inherited from Object
IJavaPeerable.Finalized() IJavaPeerable.Finalized() Inherited from Object
IJavaPeerable.SetJniIdentityHashCode(Int32) IJavaPeerable.SetJniIdentityHashCode(Int32) Inherited from Object
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) Inherited from Object
IJavaPeerable.SetPeerReference(JniObjectReference) IJavaPeerable.SetPeerReference(JniObjectReference) Inherited from Object

Extension Methods

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)

Performs an Android runtime-checked type conversion.

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable) GetJniTypeName(IJavaPeerable)

Applies to