Hop_Size在aubio中是指 [英] Hop_Size meaning in aubio

问题描述

我正在尝试使用aubio( https://aubio.org )库进行音高检测.我试图将API用于C，并且new_aubio_pitch函数的参数之一是hop_size. hop_size是什么意思，您如何选择一个?

I'm trying to use the aubio(https://aubio.org) library for pitch detection. I'm trying to use the API for C and one of the parameters of the new_aubio_pitch function is hop_size. What does hop_size mean and how do you choose one?

推荐答案

跳跃大小应指连续帧之间的样本数.为了进行信号分析，跳数"应小于帧大小，以使帧重叠.

Hop Size should refer to the number of samples in between successive frames. For signal analysis, Hop Size should be less than the frame size, so that frames overlap.

在此图中，跳数为'Q'，'K'为信号's(n)'的帧大小

In this diagram the Hop Size would be 'Q' and 'K' is the frame size for a signal 's(n)'

如果您的跟进问题是为什么要这样做?"，那么在此主题下可以找到一个很好的答案:

If your follow up question is 'why would you do that?', then there is a good answer to be found at this topic here:

https://dsp.stackexchange.com/questions/36509/why -是每个窗口框架重叠

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