Audio Video Mixer is the best audio editor app for changing music or adding music to video & mp3 cutter. Easy to add audio to Video files, using this app you can mix your audio to video files. With the Audio Video Cutter app, cut the best part of the song. Make MP3 ringtones fast & easily with a video cutter app. AUDIO VIDEO MIXER FEATURES: - Add Audio to Video: Add music to video files - Edit Video: Easy to edit video - Video Cutter: Trim and add audio - Fast motion speed & Slow motion speed With the Video editor mix & video, the cutter changes audio or song and adds music to the video.