public static MemoryStream GetWavAsMemoryStream(this byte[] data, int sampleRate, int audioChannels = 1, int bitsPerSample = 16)
{
MemoryStream memoryStream = new MemoryStream();
Wav.WriteHeader(memoryStream, sampleRate, audioChannels, bitsPerSample);
Wav.SeekPastHeader(memoryStream);
memoryStream.Write(data, 0, data.Length);
Wav.UpdateHeader(memoryStream);
return(memoryStream);
}
public static MemoryStream GetWavAsMemoryStream(this Stream data, int sampleRate, int audioChannels = 1, int bitsPerSample = 16)
{
MemoryStream memoryStream = new MemoryStream();
Wav.WriteHeader(memoryStream, sampleRate, audioChannels, bitsPerSample);
Wav.SeekPastHeader(memoryStream);
data.Position = 0L;
data.CopyTo(memoryStream);
Wav.UpdateHeader(memoryStream);
return(memoryStream);
}
public static void WriteHeader(Stream stream, int sampleRate, int audioChannels = 1, int bitsPerSample = 16)
{
int num = bitsPerSample / 8;
Encoding uTF = Encoding.UTF8;
long position = stream.Position;
stream.Seek(0L, 0);
stream.Write(uTF.GetBytes("RIFF"), 0, 4);
stream.Write(BitConverter.GetBytes(0), 0, 4);
stream.Write(uTF.GetBytes("WAVE"), 0, 4);
stream.Write(uTF.GetBytes("fmt "), 0, 4);
stream.Write(BitConverter.GetBytes(16), 0, 4);
stream.Write(BitConverter.GetBytes(1), 0, 2);
stream.Write(BitConverter.GetBytes((short)audioChannels), 0, 2);
stream.Write(BitConverter.GetBytes(sampleRate), 0, 4);
stream.Write(BitConverter.GetBytes(sampleRate * num * audioChannels), 0, 4);
stream.Write(BitConverter.GetBytes((short)num), 0, 2);
stream.Write(BitConverter.GetBytes((short)bitsPerSample), 0, 2);
stream.Write(uTF.GetBytes("data"), 0, 4);
stream.Write(BitConverter.GetBytes(0), 0, 4);
Wav.UpdateHeader(stream);
stream.Seek(position, 0);
}