A free program for Android, by InShot Inc..
If you are looking for a free tool to convert your videos to mp3, then this app is for you. It is designed to be simple and user-friendly. It allows you to trim and cut the video clips in a fast and easy way. The output format is the WAV format, which is the most common format for audio. You can also change the output quality, which is the bit rate and the sample rate. The video to audio converter supports many different video formats. It supports MP4, AVI, MOV, MKV, FLV, WMV, and many more. You can also convert mp4 to mp3, and save as music.