mp3DirectCut, the popular desktop MP3/AAC audio editor, is now available on Android. Direct editing without re-encoding allows to cut, crop, extract, join, and on MP3 also to fade (Ad-free) : r/Android
Trim a sound file – Android – Lexis Audio Editor
Audio Trimmer | How to Trim an Audio File for Free - EaseUS
Audio Editor & Music Editor for Android - Download | Bazaar