/// <summary>
/// 从Wav文件读取波形数据
/// </summary>
/// <param name="path">文件路径</param>
/// <param name="channelCount">通道个数</param>
/// <returns>波形数据</returns>
public static double[] FromWavFile(string path, out int channelCount)
{
WavReader reader = new WavReader();
reader.ReadFile(path);
double[] waveData = new double[reader.GetTotalPoints()];
reader.GetCopyOfData(waveData);
channelCount = reader.GetChannelCounts();
return(waveData);
}