Can I use the repo to rip/extract audio from MP4 format video?

[zydjohnHotmail]

Hello: I found the repo., it seems to be interesting. Now I have 2 questions about the repo.

1. Can I use the repo to rip or extract audio from a MP4 format video. FFMPEG can do this. Let me know if the repo can do this or not.
2. If I have one big audio (MP3 format) file, for example, if I extract the audio from one MP4 file (Like: C:\Videos\1.mp4), and save it as 1.mp3, let’s say this MP3 file has length of 10 minutes, can I split the MP3 file into many parts at exact time position, for example: from time 1 minute 10 seconds to 3 minute 1 second and from 7.5 minute to 9 minute. Let me know if the repo can do the above jobs. Thanks,