Feb 25, · DFX Audio Enhancer is a MP3 and Audio application like mp3DirectCut, GoldWave, and Voice Changer from FxSound. It has a simple and basic user interface, and most importantly, it is free to download. DFX Audio Enhancer is an efficient software that is recommended by many Windows PC users. iZotope Vinyl for Winamp is a free DSP plug-in that uses advanced filtering, modeling and resampling to create authentic "vinyl" simulation, as if the audio was a record being played on a record player. Platforms: Windows. License: Freeware. Size: MB. Download (): Vinyl for Winamp 2 Download.