public static IntPtr WaveToMono(
	string inWave,
	out byte[] dataPcmMono
)

Public Shared Function WaveToMono ( 
	inWave As String,
	<OutAttribute> ByRef dataPcmMono As Byte()
) As IntPtr

public:
static IntPtr WaveToMono(
	String^ inWave, 
	[OutAttribute] array<unsigned char>^% dataPcmMono
)

string wav = @"d:\down\stereo.wav";
byte[] dataPcmMono;
IntPtr formatPcmMono = AudioCompressionManager.WaveToMono(wav, out dataPcmMono);
using (WaveWriter ww = new WaveWriter(File.Create(wav + ".mono.wav"), 
    AudioCompressionManager.FormatBytes(formatPcmMono)))
{
    ww.WriteData(dataPcmMono);
}