When kitting out a home studio, it’s likely we’ll spend an inordinate amount of time selecting the best monitors (or headphones) for our listening purposes. But while we might choose a pair of speakers that deliver completely neutral, detailed sound, a bigger issue that often doesn’t get mentioned might be altering our perception of the mix without us even realising it. We’re talking about the frequency-emphasising qualities of your room itself. At worst, when sound waves (at the same frequency with each other) lock into phase they naturally bolster that specific frequency range. When this happens, every decision we make is based on false information.