The Sonoris Mastering Compressor (SMCP) is a high-quality wideband compressor designed specifically for mastering applications. It delivers ultra-clean compression without introducing the odd harmonic distortion common in many compressors, making it ideal for delicate audio material. To minimize artifacts and maintain audio integrity, the SMCP features upsampling of audio signals up to eight times. Transparency is further enhanced by options such as auto-release, feedback detection, and dual soft knee settings, providing smooth and natural compression curves.

For users seeking a more assertive compression style, the SMCP offers feed-forward detection with a harder knee setting, allowing the compressor to exhibit more character when pushed. Additionally, the plugin includes an option to add gentle even harmonic distortion, warming the audio with a subtle analog-like quality. This flexibility enables producers to tailor the sonic character to their preferences, from pristine clarity to a richer, more colored sound.

Beyond full mix processing, the SMCP supports split mode operation, enabling compression on individual left, right, mid, or side channels with adjustable linking between channels. Its sidechain includes selectable high-pass, band-pass, and low-pass filters, offering creative control over the compression’s frequency response. The user interface features a large graphical display with draggable controls, mousewheel support, and comprehensive metering including gain reduction and level meters. Compatible with Windows and Mac OS in multiple plugin formats, the SMCP also supports full automation and preset management, making it a powerful and flexible tool for professional mastering workflows.