Developed by Surina.net , the PaceMaker plugin for Winamp is a tempo/pitch controller designed to change the speed and pitch of audio files independently in real-time. Unlike simple playback speed changes that alter the pitch (like playing a vinyl record faster), PaceMaker allows you to, for example, slow down a song by 50% while keeping the vocal pitch exactly the same.
Changed the musical key of the song without altering the speed.
The software can be freely used and distributed for non-commercial purposes.
To receive a valid code, users typically make a small donation or payment (historically around $9.90) to the developer, Olli Parviainen.
What truly set Pacemaker apart from its competitors (like the built-in "Pitch" effects in other players) was the sound quality
Are you having trouble with a specific version of Winamp or the plug-in itself? PaceMaker plug-in registration - Surina.net