wave spectrogram 波谱图
A novel method based on the Graham scan is proposed to extract the chief wave of the spectrogram envelop, while an improved Angle detection method is applied to recognize the features.
基于格雷厄姆扫描算法提出声谱图包络主波提取的新方法，并用改进的角度探测方法进行包络特征的识别。
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