/// <summary>
/// Scan <paramref name="sndfile"/> file and return normalized maximum calculated signal value.
/// </summary>
/// <param name="sndfile">Audio file we want to scan.</param>
/// <returns>Normalized maximum signal value.</returns>
public double CalcNormSignalMax(IntPtr sndfile)
{
if (sndfile == IntPtr.Zero)
{
throw new ArgumentException("File handle is invalid/closed.");
}
return(m_Api.CalcNormSignalMax(sndfile));
}