public DotWaveInfo(DotWaveInfo DWI)
{
data = DWI.Data;
bitsPerSample = DWI.BitsPerSample;
sampleRate = DWI.SampleRate;
RecalcAll();
}
/// <summary>
/// Соберёт массив байт аудио формата .wav из предоставленного DotWaveInfo
/// </summary>
/// <param name="DWI">Объект DotWaveInfo</param>
/// <returns></returns>
public static byte[] SetWaves(DotWaveInfo DWI)
{
byte[] bytes = new byte[44 + DWI.Data.GetLength(0) * DWI.Data.GetLength(1) * (DWI.BitsPerSample / 8)];
BitConverter.GetBytes(DWI.ChunkID).CopyTo(bytes, 0);
BitConverter.GetBytes(DWI.ChunkSize).CopyTo(bytes, 4);
BitConverter.GetBytes(DWI.Format).CopyTo(bytes, 8);
BitConverter.GetBytes(DWI.Subchunk1ID).CopyTo(bytes, 12);
BitConverter.GetBytes(DWI.Subchunk1Size).CopyTo(bytes, 16);
BitConverter.GetBytes(DWI.AudioFormat).CopyTo(bytes, 20);
BitConverter.GetBytes(DWI.NumChannels).CopyTo(bytes, 22);
BitConverter.GetBytes(DWI.SampleRate).CopyTo(bytes, 24);
BitConverter.GetBytes(DWI.ByteRate).CopyTo(bytes, 28);
BitConverter.GetBytes(DWI.BlockAlign).CopyTo(bytes, 32);
BitConverter.GetBytes(DWI.BitsPerSample).CopyTo(bytes, 34);
BitConverter.GetBytes(DWI.Subchunk2ID).CopyTo(bytes, 36);
BitConverter.GetBytes(DWI.Subchunk2Size).CopyTo(bytes, 40);
for (uint block = 1000; block < DWI.Data.GetLength(0); block++)
{
for (uint ch = 0; ch < DWI.Data.GetLength(1); ch++)
{
byte[] val = BitConverter.GetBytes((UInt32)((double)DWI.Data[block, ch] / (double)UInt32.MaxValue * Math.Pow(256, DWI.BitsPerSample / 8)));
for (int i = 0; i < DWI.BitsPerSample / 8; i++)
{
if (DWI.BitsPerSample > 8)
{
bytes[44 + block * DWI.Data.GetLength(1) * (DWI.BitsPerSample / 8) + ch * (DWI.BitsPerSample / 8) + i] = val[i];
}
else
{
byte vl = val[0];
if (vl < 127)
{
vl += 127;
}
else
{
vl -= 127;
}
bytes[44 + block * DWI.Data.GetLength(1) * (DWI.BitsPerSample / 8) + ch * (DWI.BitsPerSample / 8) + i] = vl;
}
}
}
}
return(bytes);
}