mdsp

This free VST plug-in pack helps process stereo streams by focusing on the middle and side. It is designed to improve audio quality and can be easily integrated into your existing audio software.

Get a pack of music generation and composition helper plug-ins for your Mac for free.

This free software package includes multiple mdsp plug-ins in Audio Units (AU) format for advanced audio processing.

Fre(a)koscope is a Mac-based software that uses FFT technology to provide real-time spectrum analysis. It is a powerful tool for analyzing sound and music.