Class AudioCaptureBase

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Definition

Namespace:
Tizen.Multimedia
Assembly:
Tizen.Multimedia.AudioIO.dll

Provides the ability to directly manage the system audio input devices.


                
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public abstract class AudioCaptureBase : IDisposable
Inheritance
object
AudioCaptureBase
Derived
AsyncAudioCapture
AsyncAudioCapture
AudioCapture
AudioCapture
Implements
System.IDisposable

Fields

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MaxSampleRate

Specifies the maximum value allowed for the audio capture, in Hertz (Hz).

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public static readonly int MaxSampleRate
Field Value
Type Description
int
See Also
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MinSampleRate

Specifies the minimum value allowed for the audio capture, in Hertz (Hz).

Declaration

                
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public static readonly int MinSampleRate
Field Value
Type Description
int
See Also

Properties

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Channel

Gets the channel type of the audio input data stream.

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public AudioChannel Channel { get; }
Property Value
Type Description
AudioChannel
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SampleRate

Gets the sample rate of the audio input data stream, in Hertz (Hz).

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public int SampleRate { get; }
Property Value
Type Description
int
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SampleType

Gets the sample type of the audio input data stream.

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public AudioSampleType SampleType { get; }
Property Value
Type Description
AudioSampleType
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Volume

Gets or sets the volume of the audio input data stream.

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public double Volume { get; set; }
Property Value
Type Description
double

The default value is 1.0.
The valid range is greater than or equal to 0.0 and less than or equal to 2.0.
Note that if the value is less than 0.0, it will be set 0.0 and if the value is greater than 2.0, it will be set 2.0.
Remarks

If the value is less than 1.0, the loudness of recorded data will be decreased.
If the value is greater than 1.0, the loudness of recorded data will be increased.
Note that the volume can be clipped if the value is greater than 1.0 and the loudness of original recorded data is high enough.

Exceptions
Type Condition
System.ObjectDisposedException

The AudioCapture has already been disposed.

Methods

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ApplyStreamPolicy(AudioStreamPolicy)

Sets the sound stream information to the audio input.

Declaration

                
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public void ApplyStreamPolicy(AudioStreamPolicy streamPolicy)
Parameters
Type Name Description
AudioStreamPolicy streamPolicy

The AudioStreamPolicy to apply for the AudioCapture.
Exceptions
Type Condition
System.ArgumentNullException

streamPolicy is null.
System.ObjectDisposedException

streamPolicy has already been disposed of.
-or-
The AudioCaptureBase has already been disposed of.
System.NotSupportedException

streamPolicy is not supported.
System.ArgumentException

Not able to retrieve information from streamPolicy.
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Dispose()

Releases all resources used by the AudioCaptureBase object.

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public void Dispose()
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Dispose(bool)

Releases the resources used by the AudioCaptureBase object.

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protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.
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~AudioCaptureBase()

Finalizes an instance of the AudioCaptureBase class.

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protected ~AudioCaptureBase()
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Flush()

Flushes and discards buffered audio data from the input stream.

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public void Flush()
Exceptions
Type Condition
System.InvalidOperationException

The current state is Idle.
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
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GetBufferSize()

Gets the size allocated for the audio input buffer.

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public int GetBufferSize()
Returns
Type Description
int

The buffer size of audio data captured.
Exceptions
Type Condition
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
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Pause()

Pauses buffering of audio data from the device.

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public void Pause()
Exceptions
Type Condition
System.InvalidOperationException

The current state is Idle.
-or-
The method is called in the DataAvailable event handler.
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
See Also
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Prepare()

Prepares the AudioCapture for reading audio data by starting buffering of audio data from the device.

Declaration

                
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public void Prepare()
Exceptions
Type Condition
System.InvalidOperationException

Operation failed due to an internal error.
-or-
The current state is not Idle.
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
See Also
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Resume()

Resumes buffering audio data from the device.

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public void Resume()
Exceptions
Type Condition
System.InvalidOperationException

The current state is Idle.
-or-
The method is called in the DataAvailable event handler.
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
See Also
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Unprepare()

Unprepares the AudioCapture.

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public void Unprepare()
Exceptions
Type Condition
System.InvalidOperationException

Operation failed due to an internal error.
-or-
The current state is Idle.
System.ObjectDisposedException

The AudioCaptureBase has already been disposed of.
See Also

Events

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StateChanged

Occurs when the state of the AudioCapture is changed.

Declaration

                
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public event EventHandler<AudioIOStateChangedEventArgs> StateChanged
Event Type
Type Description
System.EventHandler<TEventArgs><AudioIOStateChangedEventArgs>

Implements

System.IDisposable