Package com.ms.com.directX

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Class WaveFormatEx

public final class WaveFormatEx {
  public short wFormatTag;
  public short nChannels;
  public int nSamplesPerSec;
  public int nAvgBytesPerSec;
  public short nBlockAlign;
  public short wBitsPerSample;
  public short cbSize;
  public byte[] extra;
}

Specifies the format of data in a sound buffer.

Fields

wFormatTag

Waveform-audio format type. Format tags are registered with Microsoft Corporation for many compression algorithms.

nChannels

Number of channels in the waveform-audio data. Monaural data uses one channel and stereo data uses two channels.

nSamplesPerSec

Sample rate, in samples-per-second (Hertz), that each channel should be played or recorded.

nAvgBytesPerSec

Required average data-transfer rate, in bytes-per-second, for the format tag.

nBlockAlign

Block alignment, in bytes. The block alignment is the minimum atomic unit of data for the wFormatTag format type. Playback and record software must process a multiple of nBlockAlign bytes of data at a time. Data written and read from a device must always start at the beginning of a block. For example, it is illegal to start playback of PCM data in the middle of a sample (that is, on a non-block-aligned boundary).

wBitsPerSample

Bits per sample for the wFormatTag format type. If a compression scheme cannot define a bits-per-sample value, this field is 0.

cbSize

Size, in bytes, of extra format information.

extra

Array variable that contains extra format information.