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我在这里得到了代码: https://naudio.codeplex.com/discussions/270762。我该如何实现Goertzel算法?
戈泽尔算法是这样的:
public double goertzel(List<double> sngData, long N, float frequency, int samplerate)
{
double skn, skn1, skn2;
skn = skn1 = skn2 = 0;
samplerate = this.sampleRate;
frequency = this.freq;
double c = 2 * pi * frequency/samplerate;
double cosan = Math.Cos(c);
for (int i = 0; i < N; i++)
{
skn2 = skn1;
skn1 = skn;
skn = 2 * cosan * skn1 - skn2 + sngData[i];
}
return skn - Math.Exp(-c) * skn1;
}
我想通过使用算法(在上面的链接从波形文件阅读器)来转换的音频数据。我怎样才能做到这一点?谢谢