There is so much software through which you can extract any audio from video files. The main problem with that Softwares is that you have to transfer your video file then you can do any editing on this video. You can then convert video to audio and also cut or time this video. This is a tedious job to connect your phone and transfer your video to your computer and then to your cell phone.
Video to mp3 converter 2020 is the android app through which you can do this job very easily. You can do all the video to audio conversion on your cell on the spot. You can extract audio from any video regardless of their formate. You can also cut this audio file by using the mp3 cutter functionality of this app. This video to mp3 converter will give you the all in one functionality in one software. You can time any specific part of any video and mp3 file. This app is also known as a ring town maker because this audio file can be set as a ringtone, notification tone, SMS tone, etc

https://play.google.com/store/apps/details?id=com.mindgigs.mp3_cutter.videotomp3converter

This app is not working... After installation, once you click on any icon in it, be it audio converter, or trimmer or any of the icons; it takes you back to the home page...