We propose an objective measurement method for pitch extractors' responses to frequency-modulated signals. It enables us to evaluate different pitch extractors with unified criteria. The method uses extended time-stretched pulses combined by binary orthogonal sequences. It provides simultaneous measurement results consisting of the linear and the non-linear time-invariant responses and random and time-varying responses. We tested representative pitch extractors using fundamental frequencies spanning 80~Hz to 800~Hz with 1/48 octave steps and produced more than 2000 modulation frequency response plots. We found that making scientific visualization by animating these plots enables us to understand different pitch extractors' behavior at once. Such efficient and effortless inspection is impossible by inspecting all individual plots. The proposed measurement method with visualization leads to further improvement of the performance of one of the extractors mentioned above. In other words, our procedure turns the specific pitch extractor into the best reliable measuring equipment that is crucial for scientific research. We open-sourced MATLAB codes of the proposed objective measurement method and visualization procedure.
翻译:我们建议了一种客观的测量方法,用于测深器对频率调控信号的反应。它使我们能够用统一的标准来评价不同的测深器。该方法使用延长的延时脉冲,结合二进制正方位序列。它提供由线性和非线性时间变异反应以及随机和时间变化反应组成的同步测量结果。我们用80~Hz至800~Hz的基本频率用1/48的八进制步骤测试了有代表性的测深器,并制作了超过2000个调控频率响应图。我们发现,通过模拟这些地块进行科学可视化,能够让我们一次了解不同的测深器行为。通过检查所有单个地块,不可能进行这种有效和不费力的检查。提议的测测方法可以进一步改善上述提取物之一的性能。换句话说,我们的程序将特定的测深器转换成对科学研究至关重要的最可靠的测量设备。我们从公开来源了拟议客观测量方法和可视化程序的MATLAB编码。