当前位置：网站首页>MFCC: Mel频率倒谱系数计算感知频率和实际频率转换
MFCC: Mel频率倒谱系数计算感知频率和实际频率转换
2022-04-23 19:24:00 【ToneChip】
人的主观感知频率不一定是线性的,因此有一个实际频率和感知频率的对应关系.用上面的公式进行计算!
由于人耳基底膜对应不同的频率群(24个),对于同一个频率群中频率是会在大脑中叠加在一起进行评价
因此在频率群的临界带就可以分成一些的频率群组,组成一个滤波器组,就是Mel滤波器组
因为之前一直没搞懂书上写的1125*log(1 + f/700)
后面才发现matlab里面log默认就是以e为底进行计算
即log(x) = loge(x)
如果matlab里面要计算以2为底,则log2
下面验证一下上面的mel滤波器的计算公式
假设f = 1000
版权声明
本文为[ToneChip]所创，转载请带上原文链接，感谢
https://tonechip.blog.csdn.net/article/details/121838937
边栏推荐
- Reflection on the performance of some OpenGL operations in the past
- An algorithm problem was encountered during the interview_ Find the mirrored word pairs in the dictionary
- Steps to build a deep learning environment GPU
- openlayers draw矩形
- MySQL syntax collation (3)
- C学习完结
- The usage of slice and the difference between slice and array
- Regular expressions for judging positive integers
- Network protocol: SCTP flow control transmission protocol
- [report] Microsoft: application of deep learning methods in speech enhancement
猜你喜欢
Openharmony open source developer growth plan, looking for new open source forces that change the world!
Why is PostgreSQL about to surpass SQL Server?
Class loading mechanism
Prefer composition to inheritance
An algorithm problem was encountered during the interview_ Find the mirrored word pairs in the dictionary
Kubernetes入门到精通-KtConnect（全称Kubernetes Toolkit Connect）是一款基于Kubernetes环境用于提高本地测试联调效率的小工具。
ArcMap连接 arcgis server
Oracle configuration st_ geometry
Application of DCT transform
FTP, SSH Remote Access and control
随机推荐
ArcMap publishing slicing service
How to use go code to compile Pb generated by proto file with protoc Compiler Go file
该买什么设备，Keysight 给你挑好了
SSDB Foundation
MySQL syntax collation
The difference between underline and dot of golang import package
JS controls the file type and size when uploading files
ArcMap connecting ArcGIS Server
MySQL syntax collation (5) -- functions, stored procedures and triggers
Build intelligent garbage classification applet based on Zero
浅谈c语言指针的强制转换
开关电源设计分享及电源设计技巧图解
MySQL restores or rolls back data through binlog
RuntimeError: Providing a bool or integral fill value without setting the optional `dtype` or `out`
Pdf reference learning notes
SQL常用的命令
ArcGIS JS API dojoconfig configuration
js上传文件时控制文件类型和大小
No, some people can't do the National Day avatar applet (you can open the traffic master and earn pocket money)
命令-sudo