Extract MP3 audio from video

As an ordinary programmer, I have attempted to develop this small tool in the hope of providing some assistance to everyone. The main function of this software is to extract MP3 audio from videos, specifically:
Title: Video Extraction MP3 Audio
Function Overview:
Convert video and audio files to MP3 format
Provides some basic audio parameter adjustment options, such as bit rate, sampling rate, and channel
Can clip audio length
Simplify the interface design as much as possible to facilitate operation
After the conversion is completed, MP3 files can be downloaded directly
Although there are already many similar tools on the market, I have tried to make some optimizations in the hope of improving the user experience. Of course, there are still many shortcomings in this software. We welcome your valuable feedback and I will continue to work hard to improve it. If it's helpful to you, I would be delighted.