DTMFDetector Class

DTMFDetector Class

DTMF Detector class for 16-bit PCM audio streams.

Inheritance Hierarchy

SystemObject
StreamCoders.SignalsDTMFDetector

Namespace: StreamCoders.Signals
Assembly: MediaSuite (in MediaSuite.dll) Version: 2.0.5.0 (2.0.5.0)

Syntax

public class DTMFDetector : IDisposable

Public Class DTMFDetector
	Implements IDisposable

public ref class DTMFDetector : IDisposable

type DTMFDetector =  
    class
        interface IDisposable
    end

The DTMFDetector type exposes the following members.

Constructors

	Name	Description
	DTMFDetector	Default constructor.

Properties

	Name	Description
	BitsPerSample	Bits per sample of the PCM stream. Currently this value has to be 16.
	Channels	Number of channels on the PCM stream. Currently this value has to be 1.
	SampleFrequency	Gets or sets the sample frequency of the PCM stream. Allowed values are: 8000, 16000.

Methods

	Name	Description
	Detect	Detect DTMF in a PCM Stream. Possible characters are: 0-9, A-D, '*' and '#'. The minimum duration for a tone to be detected is 40ms.
	Dispose	Destructor.
	Init	Initializes DTMF Detector.

Extension Methods

	Name	Description
	Copy	Overloaded. Creates a copy of the object. (Defined by ObjectExtensions.)
	Copy(Object)	Overloaded. Creates a deep copy of the object using the supplied object as a target for the copy operation. (Defined by ObjectExtensions.)

Remarks

See DTMFDetectionSample on how to use this class.