我有一个WAVE文件，wFormatTag为3（WAVE_FORMAT_IEEE_FLOAT）。 Firefox会将WAVE_FORMAT_IEEE_FLOAT文件视为WAVE_FORMAT_EXTENSIBLE，这意味着它希望WAVE_FORMAT_IEEE_FLOAT文件包含fmt块的扩展部分。
我的文件不包含fmt块的扩展部分，这会在Firefox中解码文件时导致错误：The buffer passed to decodeAudioData contains invalid content which cannot be decoded successfully.
这意味着我必须在字节38添加wValidBitsPerSample，在字节40添加dwChannelMask，在字节44添加SubFormat。我应该为这三个头字段添加哪些信息？这些信息的含义是什么？如何以8-16-32bits整数的形式添加它们？
感谢您的帮助:)。
以下是我的文件的标题信息：
console.log('ckID', String.fromCharCode(dataView.getUint8(0))); // R
console.log('ckID', String.fromCharCode(dataView.getUint8(1))); // I
console.log('ckID', String.fromCharCode(dataView.getUint8(2))); // F
console.log('ckID', String.fromCharCode(dataView.getUint8(3))); // F
console.log('cksize', dataView.getUint32(4, true)); // 65623058
console.log('WAVEID', String.fromCharCode(dataView.getUint8(8))); // W
console.log('WAVEID', String.fromCharCode(dataView.getUint8(9))); // A
console.log('WAVEID', String.fromCharCode(dataView.getUint8(10))); // V
console.log('WAVEID', String.fromCharCode(dataView.getUint8(11))); // E
console.log('ckID', String.fromCharCode(dataView.getUint8(12))); // f
console.log('ckID', String.fromCharCode(dataView.getUint8(13))); // m
console.log('ckID', String.fromCharCode(dataView.getUint8(14))); // t
console.log('ckID', String.fromCharCode(dataView.getUint8(15))); //
console.log('cksize', (dataView.getUint32(16, true))); // 16
console.log('wFormatTag', (dataView.getUint16(20, true))); // 3
console.log('nChannels', (dataView.getUint16(22, true))); // 2
console.log('nSamplesPerSec', (dataView.getUint32(24, true))); // 44100
console.log('nAvgBytesPerSec', (dataView.getUint32(28, true))); // 352800
console.log('nBlockAlign', (dataView.getUint16(32, true))); // 8
console.log('wBitsPerSample', (dataView.getUint16(34, true))); // 32
console.log('cbSize', (dataView.getUint16(36, true))); // 0
console.log('ckID', String.fromCharCode(dataView.getUint8(38))); // f
console.log('ckID', String.fromCharCode(dataView.getUint8(39))); // a
console.log('ckID', String.fromCharCode(dataView.getUint8(40))); // c
console.log('ckID', String.fromCharCode(dataView.getUint8(41))); // t
console.log('cksize', (dataView.getUint16(42, true))); // 4
console.log('dwSampleLength', (dataView.getUint16(46, true))); // 10876
console.log('ckID', String.fromCharCode(dataView.getUint8(50))); // d
console.log('ckID', String.fromCharCode(dataView.getUint8(51))); // a
console.log('ckID', String.fromCharCode(dataView.getUint8(52))); // t
console.log('ckID', String.fromCharCode(dataView.getUint8(53))); // a