带有 Java 线性和对数滤波器的 MFCC
我正在用Java实现MFCC算法。 Java 中有三角滤波器和 MFCC 的示例代码。这是链接：MFCC Java 但是我应该遵循用 Matlab 编写的代码： MFCC Matlab
我的问题是，在 Matlab 代码中它讨论了线性和对数滤波器，但是有在 Java 代码中与此无关。我应该衡量对数的性能 和线性过滤器，但我实现了 Java 代码，但什么也没有。另外我不明白Java代码中的这些fbins和cbins是什么？
I am implementing MFCC algorithm with Java. There is a sample code for triangular filters and MFCC at Java. Here is the link: MFCC Java However I should follow that code written in Matlab: MFCC Matlab
My question is that at Matlab code it talks about linear and logarithmic filters however there is nothing about that at Java code. I should measure the performance of logarithmic
and linear filters but I implemented that Java code and there is nothing about that. Also I didn't understand what these fbins and cbins at Java code?
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Java 代码确实包含非线性变换，基本上将线性频率标度映射到梅尔标度。 “cbins”指的是每个滤波器组的中心（频率）。
Java 代码正是 MFCC 代码应有的样子。所以，它应该适合你。
The Java code does include a non linear transformation, basically mapping your linear frequency scale to the mel-scale. 'cbins' refer to the center (frequency) of each filter bank.
The Java code is exactly what an MFCC code should look like. So, it should work well for you.