public static Wav CreateWav(byte[] rawData)
{
var wav = new Wav()
{
_ChunkId = SubArray(rawData, 0, 4),
_ChunkSize = SubArray(rawData, 4, 4),
_Format = SubArray(rawData, 8, 4),
_Subchunk1Id = SubArray(rawData, 12, 4),
_Subchunk1Size = SubArray(rawData, 16, 4),
_AudioFormat = SubArray(rawData, 20, 2),
_NumChannels = SubArray(rawData, 22, 2),
_SampleRate = SubArray(rawData, 24, 4),
_ByteRate = SubArray(rawData, 28, 4),
_BlockAlign = SubArray(rawData, 32, 2),
_BitsPerSample = SubArray(rawData, 34, 2),
_Subchunk2Id = SubArray(rawData, 36, 4),
_Subchunk2Size = SubArray(rawData, 40, 4),
_Data = SubArray(rawData, 44, rawData.Length - 44),
_RawData = rawData,
};
if (wav.NumChannels > 1)
{
wav = GetDualChannel();
}
if (ValidateWav(wav))
{
return(wav);
}
else
{
throw new FormatException("File not in correct WAV format.");
}
}
private static bool ValidateWav(Wav wav)
{
bool result = true;
if (wav.ChunkId != "RIFF")
{
result = false;
}
if (wav.Format != "WAVE")
{
result = false;
}
if (wav.Subchunk1Id != "fmt ")
{
result = false;
}
if (wav.Subchunk2Id != "data")
{
result = false;
}
if (wav.ChunkId != "RIFF")
{
result = false;
}
return(result);
}
static void Main(string[] args)
{
var data = ReadBytes(@"E:\dev_files\Yamaha-V50-Synbass-1-C2.wav");
var wav = Wav.CreateWav(data);
var ChunkId = wav.ChunkId;
var ChunkSize = wav.ChunkSize;
var Format = wav.Format;
var Subchunk1Id = wav.Subchunk1Id;
var Subchunk1Size = wav.Subchunk1Size;
var AudioFormat = wav.AudioFormat;
var NumChannels = wav.NumChannels;
var SampleRate = wav.SampleRate;
var ByteRate = wav.ByteRate;
var BlockAlign = wav.BlockAlign;
var BitsPerSample = wav.BitsPerSample;
var Subchunk2Id = wav.Subchunk2Id;
var Subchunk2Size = wav.Subchunk2Size;
string str_chunkId = GetBytesAsString(wav._ChunkId);
string str_chunkSize = GetBytesAsString(wav._ChunkSize);
string str_format = GetBytesAsString(wav._Format);
string str_sub1Id = GetBytesAsString(wav._Subchunk1Id);
string str_sub1Size = GetBytesAsString(wav._Subchunk1Size);
string str_audioForm = GetBytesAsString(wav._AudioFormat);
string str_numChan = GetBytesAsString(wav._NumChannels);
string str_sRate = GetBytesAsString(wav._SampleRate);
string str_bRate = GetBytesAsString(wav._ByteRate);
string str_align = GetBytesAsString(wav._BlockAlign);
string str_bps = GetBytesAsString(wav._BitsPerSample);
string str_sub2Id = GetBytesAsString(wav._Subchunk2Id);
string str_sub2Size = GetBytesAsString(wav._Subchunk2Size);
string str_data = GetBytesAsString(wav._RawData);
Console.WriteLine(
$"ChunkId : {ChunkId}\t:: {str_chunkId}\n" +
$"ChunkSize : {ChunkSize}\t:: {str_chunkSize}\n" +
$"Format : {Format}\t:: {str_format}\n" +
$"Subchunk1Id : {Subchunk1Id}\t:: {str_sub1Id}\n" +
$"Subchunk1Size : {Subchunk1Size}\t:: {str_sub1Size}\n" +
$"AudioFormat : {AudioFormat}\t:: {str_audioForm}\n" +
$"NumChannels : {NumChannels}\t:: {str_numChan}\n" +
$"SampleRate : {SampleRate}\t:: {str_sRate}\n" +
$"ByteRate : {ByteRate}\t:: {str_bRate}\n" +
$"BlockAlign : {BlockAlign}\t:: {str_align}\n" +
$"BitsPerSample : {BitsPerSample}\t:: {str_bps}\n" +
$"Subchunk2Id : {Subchunk2Id}\t:: {str_sub2Id}\n" +
$"Subchunk2Size : {Subchunk2Size}\t:: {str_sub2Size}\n\n" +
$"Raw Data : {str_data.Substring(0, 254)}...");
}
private static Wav GetDualChannel(Wav wav)
{
var data = wav.Data;
var dataLength = data.Length;
var leftSample = true;
var left = new byte[dataLength / 2];
var right = new byte[dataLength / 2];
for (int i = 0; i < dataLength; i += 4)
{
}
return(wav);
}
