Timbre
Timbre is an application for editing sound and video records. It enables you to alter, cut, join and change over your media records. It is totally free and has no advertisements. The most popular feature of Timbre is the high quality mp3 cutter & mp4 cutter. But it does much more than simply cutting mp3 songs or cutting videos. Timbre allows you to pick an audio or video file from your device and gives you complete control over how you wish to edit it. Check out Timbre here
