语音信号处理之（二）基音周期估计（Pitch Detection）

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aihot 2017-04-27 08:03:28 OpenCV | 查看评论

}

energyTmp.push_back(sum);

nodeCount++;

}

// 转换为短型显示

vector<short> energy;

// 填补边界元素

short tmp = (short)(energyTmp[0] * 400 / maxEnergy);

for (int i = 0; i < nodesPerFrame * 0.5; i++)

{

energy.push_back(tmp);

}

for (int i = 0; i < energyTmp.size(); i++)

{

energy.push_back((short)(energyTmp[i] * 400 / maxEnergy));

}

// 填补边界元素

tmp = (short)(energyTmp[energyTmp.size() - 1] * 400 / maxEnergy);

for (int i = 0; i < nodesPerFrame * 0.5; i++)

{

energy.push_back(tmp);

}

// 显示

Mat showEnergy;

wav2image(showEnergy, energy, 0, energy.size(), 400);

line(showEnergy, Point(0, showEnergy.rows - 1), Point(showEnergy.cols, showEnergy.rows - 1), Scalar(0, 0, 255), 2);

imshow("showEnergy", showEnergy);

while (waitKey(30) != ' ');

// 单独的声音和声音

float thresVoice = 400 * 0.15;

line(showEnergy, Point(0, showEnergy.rows - thresVoice), Point(showEnergy.cols, showEnergy.rows - thresVoice), Scalar(0, 255, 255), 2);

imshow("showEnergy", showEnergy);

while (waitKey(30) != ' ');

// 找到过渡点并绘制它们

bool high =

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