PSP develops high quality audio effect and processor plug-ins. Our products garner rave reviews and endorsements from every corner of the music production, engineering, composition, and post-production worlds.  Our  plug-ins have become staples in professional and home studios worldwide.  Our credo explains our simple philosophy: It's The Sound That Counts!

"I have been using PSP plug-ins for many years. They have always been very intuitive and instantly musical sounding. PSP plug-ins just feel right. They don't fight me. Within five seconds, my music is sounding better.”

Greg Wells, record producer, songwriter, musician, and mix engineer Celine Dion, Katy Perry, Adele, Pharrell Williams, Rufus, Timbaland, Pink ...