Fundamental Frequency

WRITTEN BY chau truong long

• Email 1: truonglongchau@gmail.com
• Email 2: 102180171@sv.dut.edu.vn

Tools and language

• Tools: Pycharm
• Python 3: tkinter, matplotlib, numpy, scipy

How to run code

Run:

python main.py 

Fundamental frequency(F0) on time domain using auto correlation function

Auto correlated funtion

• Origin (big O(n²))

• Improvement (big O(nlog(n)))

A periodicity window of a signal

A non periodicity window of a signal

A window contains F0

A window not contains F0

Main Gui