Reading Room

The user guide says how the app works and what a control means. The Reading Room says why the measurement matters to a musician — the physics and psychoacoustics that connect a number on a record to a sound in a room. Each piece is short: one question, one answer, at most two tables, and every figure recomputed from a formula stated in the text. It lives here on the website only; the app’s guide points to it and carries none of it.

Articles

• Low or high: why the same distortion sounds different across the neck — The circuit does not know what register you are in. Your ear and your speaker do, and they disagree about which way is worse.