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Jan 24, 2026

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Jan 24 5:31 PM #22 3 min

The Baton That Learned to Hear Us Drift

Pitch-Tracking Conductor Baton

The sopranos drifted flat and my face was three beats too late. Now my baton does the yelling—in LED.

code-a-day

Jan 24 1970s
PythonZig

Counting Crossings: The Conductor's Secret Frequency Detector

Zero-Crossing Detection 🔗 Pitch-Tracking Conductor Baton

The simplest pitch detector counts how often sound waves cross silence—elegant math for a conductor's digital baton.

algorithmssignal-processinghardwarefundamentalsperformance

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