If you want to record a song on your mobile and need to add Echo or delay sound effects then you need this app. Echo Sound Effects for Audio is a smart tool apply echo effect on any audio file. In the main screen just touch the button "Select File" to get started. In addition to Echo effect you can add delay and speed effects. Also you can Trim any audio file and choose any part of it to save to be a ringtone. App Features: ✓ Apply Echo sound effect on any audio file . ✓ Apply Delay and Speed effects. ✓ Trim any audio file. ✓ Supports most popular audio formats. ✓ Playback audio clips. ✓ Built using FFMPEG great media library ✓ Smart and simple user interface. Uses FFmpeg under permission of LGPL.