关于wav头文件格式的问题,保存后的wav文件不能正常播放

xinyun80 2008-11-04 04:48:14

我的头文件是这样写的,大家帮忙看看是不是有问题:
waveFile = new System.IO.MemoryStream();
System.IO.BinaryWriter s = new System.IO.BinaryWriter(waveFile);

char[] ChunkRiff = { 'R', 'I', 'F', 'F' };

char[] ChunkType = { 'W', 'A', 'V', 'E' };

char[] ChunkFmt = { 'f', 'm', 't', ' ' };

char[] ChunkData = { 'd', 'a', 't', 'a' };

short shPad = 1; // File padding

int nFormatChunkLength = 0x10; // Format chunk length.

int nLength = 0; // File length, minus first 8 bytes of RIFF description. This will be filled in later.

short shBytesPerSample = 0; // Bytes per sample.
// 一个样本点的字节数目

if (8 == wavefmt.nSamplesPerSec && 1 == wavefmt.nChannels)

shBytesPerSample = 1;

else if ((8 == wavefmt.wBitsPerSample && 2 == wavefmt.nChannels) || (16 == wavefmt.nSamplesPerSec && 1 == wavefmt.nChannels))

shBytesPerSample = 2;

else if (16 == wavefmt.wBitsPerSample && 2 == wavefmt.nChannels)

shBytesPerSample = 4;

// RIFF 块

s.Write(ChunkRiff);

s.Write(nLength);

s.Write(ChunkType);
// WAVE块

s.Write(ChunkFmt);

s.Write(nFormatChunkLength);

s.Write(shPad);

s.Write(wavefmt.nChannels);

s.Write(wavefmt.nSamplesPerSec);

s.Write(wavefmt.nAvgBytesPerSec);

s.Write(shBytesPerSample);

s.Write(wavefmt.wBitsPerSample);

// 数据块

s.Write(ChunkData);

s.Write((int)0); // The sample length will be written in later.
s.Write((int)(this.waveStream.Length));

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