Leo wrote his report. He didn’t use poetic language. He wrote: “The audio artifact labeled Exhibit_7 exhibits subharmonic clock noise at 15.4 kHz, a non-linear modulation asymmetry of 0.7 degrees, and a voltage sag envelope consistent with a Boss CE-2 operating on a partially depleted 9V alkaline battery. Probability of false positive: 0.3%.”
The subject line arrived on a Tuesday, buried between a phishing alert and a reminder about the office fridge.
Boss CE-2 Analysis.
Leo’s job was to prove or disprove the chain of custody. Was the chorus on that album from a Boss CE-2, as the plaintiff claimed, or was it a studio trick—a Roland JC-120 amp’s built-in chorus, or even a later digital emulation?
He loaded the file into his spectral analyzer. The CE-2 was legendary for a reason: a simple BBD (Bucket Brigade Delay) chip that split the signal, delayed one half by a few milliseconds, and modulated that delay with a low-frequency oscillator. It wasn’t pristine. It was flawed . And those flaws were its fingerprints.
He cross-referenced with the album’s master tape log from 1981, digitized last year from a storage locker in New Jersey. The engineer’s notes, scrawled in pencil, read: “GTR solo – Boss CE-2 (SN 1200xx), 9V battery dying, gives it that warble. Keep.”