Ah, the Logic's Compressor – a longtime friend to us Logic users. Take a trip down any audio forum, and you'll find Logic users trumpet the Compressor for its quality and versatility for shaping tracks.
The Compressor currently offers 7 modes of compression. Each emulation treating us to different shades of saturation and response. And while there's plenty of options with the Compressor, the differences can be quite subtle. Which may lead some to wonder – are the emulations really different at all?
Mastering engineer Holger Lagerfeldt decided to answer that question. And for the benefit of Logic users everywhere, Lagerfeldt took to the task of analyzing the Compressor's response. His findings are now available in a succinct, yet in-depth PDF.
The topic originally emerged from Lagerfeldt on Logicprohelp.com. In his work, Lagerfeldt analyzed the Compressor's harmonic response and the waveform envelope. In fact, there's even deeper analysis of the Compressor in a later reply. In post #11, Lagerfeldt shares screenshots of the Spectrogram and Spectrograph responses, with a brief analysis of each.
Some of my favorite bits from the Logic Pro X Compressor Circuit Type Cheat Sheet:
Details of both the Compressor model, and the hardware compressor that inspired the emulation (with images)
Analysis of each model's harmonic saturation in terms of level, type, and dynamic interaction
Suggested applications and usage tips for each model
Lagerfeldt's work felt too significant a contribution not to share. You can download the full PDF by clicking this direct download link where you will always get the latest update of this ongoing analysis of the Logic Compressor.