C# Класс Accord.Audio.Signal

Represents a PCM sound discrete signal (measured in time). A real discrete-time signal is defined as any real-valued function of the integers.

In signal processing, sampling is the reduction of a continuous signal to a discrete signal. A common example is the conversion of a sound wave (a continuous-time signal) to a sequence of samples (a discrete-time signal).

A sample refers to a value or set of values at a point in time and/or space.

Наследование: IDisposable

Показать файл Открыть проект Примеры использования класса

Открытые методы

Метод	Описание
CopyTo ( Array array ) : void	Copies this signal to a given array.
CopyTo ( double array ) : void	Copies this signal to a given array.
CopyTo ( float array ) : void	Copies this signal to a given array.
Dispose ( ) : void	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
DurationOfSamples ( int samples, int samplingRate ) : int	Gets the duration of each sample in a signal with the given number of samples and sampling rate.
FromArray ( Array signal, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal	Creates a new Signal from a float array.
FromArray ( Array signal, int channels, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal	Creates a new Signal from a float array.
FromArray ( Array signal, int size, int channels, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal	Creates a new Signal from a float array.
GetEnergy ( ) : double	Computes the signal energy.
GetSample ( int channel, int position ) : float	Gets the value of the specified sample in the Signal.
GetSampleSize ( SampleFormat format ) : int	Gets the size (in bits) of a sample format.
NumberOfSamples ( int duration, int samplingRate ) : int	Gets the number of samples contained in a signal of given duration and sampling rate.
SetSample ( int channel, int position, float value ) : void	Sets the value of the specified sample in the Signal.
Signal ( byte data, int channels, int length, int sampleRate, SampleFormat format ) : System	Constructs a new signal.
Signal ( int channels, int length, int sampleRate, SampleFormat format ) : System	Constructs a new Signal.
ToComplex ( ) : ComplexSignal	Converts this signal to a ComplexSignal object.
ToDouble ( ) : double[]	Converts this signal into a array of floating-point samples.
ToFloat ( ) : float[]	Converts this signal into a array of floating-point samples.

Защищенные методы

Метод	Описание
Dispose ( bool disposing ) : void	Releases unmanaged and - optionally - managed resources

Приватные методы

Метод	Описание
init ( byte data, int channels, int length, int sampleRate, SampleFormat format ) : void

Описание методов

CopyTo() публичный Метод

Copies this signal to a given array.

public CopyTo ( Array array ) : void
array	System.Array
Результат	void

CopyTo() публичный Метод

Copies this signal to a given array.

public CopyTo ( double array ) : void
array	double
Результат	void

CopyTo() публичный Метод

Copies this signal to a given array.

public CopyTo ( float array ) : void
array	float
Результат	void

Dispose() публичный Метод

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

public Dispose ( ) : void
Результат	void

Dispose() защищенный Метод

Releases unmanaged and - optionally - managed resources

protected Dispose ( bool disposing ) : void
disposing	bool	true to release both managed /// and unmanaged resources; false to release only unmanaged /// resources.
Результат	void

DurationOfSamples() публичный статический Метод

Gets the duration of each sample in a signal with the given number of samples and sampling rate.

public static DurationOfSamples ( int samples, int samplingRate ) : int
samples	int
samplingRate	int
Результат	int

FromArray() публичный статический Метод

Creates a new Signal from a float array.

public static FromArray ( Array signal, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal
signal	System.Array
sampleRate	int
format	SampleFormat
Результат	Signal

FromArray() публичный статический Метод

Creates a new Signal from a float array.

public static FromArray ( Array signal, int channels, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal
signal	System.Array
channels	int
sampleRate	int
format	SampleFormat
Результат	Signal

FromArray() публичный статический Метод

Creates a new Signal from a float array.

public static FromArray ( Array signal, int size, int channels, int sampleRate, SampleFormat format = SampleFormat.Format32BitIeeeFloat ) : Signal
signal	System.Array
size	int
channels	int
sampleRate	int
format	SampleFormat
Результат	Signal

GetEnergy() публичный Метод

Computes the signal energy.

public GetEnergy ( ) : double
Результат	double

GetSample() публичный Метод

Gets the value of the specified sample in the Signal.

public GetSample ( int channel, int position ) : float
channel	int	The channel's index of the sample to set.
position	int	The position of the sample to set.
Результат	float

GetSampleSize() публичный статический Метод

Gets the size (in bits) of a sample format.

public static GetSampleSize ( SampleFormat format ) : int
format	SampleFormat
Результат	int

NumberOfSamples() публичный статический Метод

Gets the number of samples contained in a signal of given duration and sampling rate.

public static NumberOfSamples ( int duration, int samplingRate ) : int
duration	int
samplingRate	int
Результат	int

SetSample() публичный Метод

Sets the value of the specified sample in the Signal.

public SetSample ( int channel, int position, float value ) : void
channel	int	The channel's index of the sample to set.
position	int	The position of the sample to set.
value	float	A floating-point value ranging from -1 to 1 /// specifying the value to set. Conversion will be done automatically /// to the underlying signal sample format if supported.
Результат	void

Signal() публичный Метод

Constructs a new signal.

public Signal ( byte data, int channels, int length, int sampleRate, SampleFormat format ) : System
data	byte	The raw data for the signal.
channels	int	The number of channels for the signal.
length	int	The length of the signal.
sampleRate	int	The sample date of the signal.
format	SampleFormat	The sample format for the signal.
Результат	System

Signal() публичный Метод

Constructs a new Signal.

public Signal ( int channels, int length, int sampleRate, SampleFormat format ) : System
channels	int	The number of channels for the signal.
length	int	The length of the signal.
sampleRate	int	The sample date of the signal.
format	SampleFormat	The sample format for the signal.
Результат	System

ToComplex() публичный Метод

Converts this signal to a ComplexSignal object.

public ToComplex ( ) : ComplexSignal
Результат	ComplexSignal

ToDouble() публичный Метод

Converts this signal into a array of floating-point samples.

public ToDouble ( ) : double[]
Результат	double[]

ToFloat() публичный Метод

Converts this signal into a array of floating-point samples.

public ToFloat ( ) : float[]
Результат	float[]