A free app for Android, by Futuretech Apps.

Music Editor: Trim, Cut, Merge, Convert to Mp3 is a free, easy-to-use audio editor app. It is a powerful tool for creating, editing, converting, and compressing audio files. This app is an all-in-one tool for music editing. It has an extensive collection of audio editing tools, including trimming, cropping, and muting. It also has a wide selection of output formats, including mp3, wav, m4a, and aac. It also has a built-in music tag editor and a music tag extractor. It is also capable of converting video files to many formats, including mp3, wav, m4a, and aac. It has a built-in music compressor, which allows you to pick a custom bit rate and also change the sample rate of the audio. It also has a built-in audio trimmer, which allows you to trim any sound file.