It’s a lightweight plugin that fits well in your VST host and allows you to either remove the vocals or isolate them. Voice Trap uses two DSP algorithms ( FFT-based center channel suppression and isolation, along with cepstral liftering) which enable you to keep the stereo output and leave the bass frequencies as they were.
Generally, vocals are removed from a track by subtracting the left audio channel from the right one but that generally leaves you with mono output and various other quality mishaps. Voice Trap is an audio tool that was designed to help eliminate and isolate vocals within a track.
