Sound Cutter

Download Sound Cutter FREE Unity. 

This is an editor that allows you to easily cut audio clips in Unity.
You can select and playback audio clip regions that can be removed/kept depending on your needs.

Source audio clips are not modified and results are saved to new wav files.

Works with both the free and Pro version of Unity.
Unity 5 is supported!

Check out the details from the Unity Asset Store: https://assetstore.unity.com/packages/tools/audio/sound-cutter-65194