Blog
How DSD, upsampling, EQ and room acoustics actually work. The answer comes first; the steps live in the guides.
What is DSD, and what happens when you convert PCM to DSD
DSD is a 1-bit audio format made by delta-sigma modulation. What DSD64 to DSD512 mean, what upsampling PCM to DSD does, and what choosing a modulator actually changes.
Upsampling filters explained: linear vs minimum phase, apodizing and tap count
What upsampling actually does, whether it improves sound, and how to choose a filter: linear vs minimum phase, apodizing, windows and tap count vs latency.
How to use an equalizer on a Mac (system-wide, Spotify, Apple Music)
macOS has no system-wide EQ. What the Apple Music and Spotify equalizers can do, how system-wide EQ apps work, what they cost in bit-perfect playback, and how to set a parametric EQ.