In order to estimate jitter and shimmer, we suggest a method for the detection of precise pitch and amplitude of voiced speech signal. After low-pass filtering, voiced/unvoiced decision and pitch detection is performed using the average magnitude difference function. We find a minimum value at t=/spl tau/ and also check the possible minimum value at t=/spl tau//2, /spl tau//3, /spl tau//4, /spl tau//5, /spl tau//6. By the application of adaptive threshold, we can estimate pitch more accurately.
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机译：为了估计抖动和闪光，我们建议一种检测精确的音调和振幅的声音语音信号的方法。在低通滤波后，使用平均幅度差函数执行浊音/清晰的判定和俯仰检测。我们在t = / spl tau /并且还在t = / spl tau // 2，/ spl tau // 3，/ spl tau // 4， / spl tau // 6。通过应用自适应阈值，我们可以更准确地估计音调。
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