Class WavReader

Wave Reader.

Inheritance
Object
WavReader
Implements
Inherited Members
Namespace: Acoustics.Tools.Wav
Assembly: Acoustics.Tools.dll
Syntax
public class WavReader : IDisposable

Constructors

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WavReader(Byte[])

Initializes a new instance of the WavReader class.

Declaration
public WavReader(byte[] wavData)
Parameters
Type Name Description
Byte[] wavData

The wav data.
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WavReader(Double[], Int32, Int32, Int32)

Initializes a new instance of the WavReader class. This method assumes channel samples are interleaved!.

Declaration
public WavReader(double[] rawData, int channels, int bitsPerSample, int sampleRate)
Parameters
Type Name Description
Double[] rawData

The raw data with interleaved samples from each channel.
Int32 channels

The channels.
Int32 bitsPerSample

The bits per sample.
Int32 sampleRate

The sample rate.
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WavReader(FileInfo)

Declaration
public WavReader(FileInfo file)
Parameters
Type Name Description
FileInfo file
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WavReader(String)

Declaration
public WavReader(string path)
Parameters
Type Name Description
String path

Fields

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WavFileExtension

Wav file extension.

Declaration
public const string WavFileExtension = ".wav"
Field Value
Type Description
String

Properties

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BitsPerSample

Gets or sets BitsPerSample as if were a single channel.

Declaration
public int BitsPerSample { get; protected set; }
Property Value
Type Description
Int32
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BlockAlign

Gets or sets BlockAlign - the number of bytes in each sample for all channels.

Declaration
public int BlockAlign { get; protected set; }
Property Value
Type Description
Int32
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BlockCount

Gets BlockCount - the number of blocks of data (each channel has one sample). Defined in http://www-mmsp.ece.mcgill.ca/documents/audioformats/wave/wave.html.

Declaration
public int BlockCount { get; }
Property Value
Type Description
Int32
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BytesPerSecond

Declaration
public uint BytesPerSecond { get; }
Property Value
Type Description
UInt32
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Channels

Gets or sets Channels.

Declaration
public int Channels { get; protected set; }
Property Value
Type Description
Int32
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Epsilon

Gets the Epsilon (smallest distinguishable value) for this format.

Declaration
public double Epsilon { get; }
Property Value
Type Description
Double
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ExactDurationSeconds

Gets the ExactDurationSeconds of the data. This calculation should be accurate down to the nanosecond. Note this is a new value and SHOULD NOT be used for any real calculations.

Declaration
public decimal ExactDurationSeconds { get; }
Property Value
Type Description
Decimal
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Format

Declaration
public WavReader.WaveFormat Format { get; }
Property Value
Type Description
WavReader.WaveFormat
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Item[Int32, Int32]

Gets or sets values from samples.

Declaration
public double this[int index, int channel] { get; set; }
Parameters
Type Name Description
Int32 index

The sample to operate on.
Int32 channel

The channel to operate on.
Property Value
Type Description
Double

A sample for the selected index and channel.
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Length

Gets the total number of samples for each channel. An alias for BlockCount.

Declaration
public int Length { get; }
Property Value
Type Description
Int32
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SampleRate

Gets or sets SampleRate.

Declaration
public int SampleRate { get; protected set; }
Property Value
Type Description
Int32
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Samples

Gets the samples.

Declaration
public double[] Samples { get; }
Property Value
Type Description
Double[]
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Time

Gets Time - the duration of the data. NOTE: this value has been rounded to the nearest millisecond! See ExactDurationSeconds for a precise value.

Declaration
public TimeSpan Time { get; }
Property Value
Type Description
TimeSpan
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ValidBitsPerSample

Gets ValidBitsPerSample. Only set when Format is WAVE_FORMAT_EXTENSIBLE. wValidBitsPerSample specifies the precision of the sample in bits.

Declaration
public ushort? ValidBitsPerSample { get; }
Property Value
Type Description
Nullable<UInt16>

Methods

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CalculateEpsilonForRescaledInteger(Int32)

Calculates the smallest possible representable value for an integer of size bitDepth hat has been rescaled to the range [-1,1].

Declaration
public static double CalculateEpsilonForRescaledInteger(int bitDepth)
Parameters
Type Name Description
Int32 bitDepth

The bit depth of the integer the range was represented in before rescaling.
Returns
Type Description
Double

The smallest distinguishable value for data that was stored as an integer before rescaling.
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CalculateMaximumAmplitude()

Calculate maximum amplitude of audio.

Declaration
public virtual double CalculateMaximumAmplitude()
Returns
Type Description
Double

Maximum Amplitude.
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Dispose()

Dispose this WavReader.

Declaration
public void Dispose()
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GetChannel(Int32)

Get the zero-indexed channel data from channel c.

Declaration
public double[] GetChannel(int c)
Parameters
Type Name Description
Int32 c

The zero-indexed channel to get.
Returns
Type Description
Double[]

the requested channel.
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SubSample(Int32)

Sub-samples audio. Obsolete - we recommend you resample with ffmpeg/SoX.

Declaration
[Obsolete("Does not remove high frequency artifacts")]
public void SubSample(int interval)
Parameters
Type Name Description
Int32 interval

Keeps every interval sample.

Implements

Extension Methods