jsmith2568

@playground-sessions/amdf-js

Pure-JS Average Magnitude Difference Function, no WASM, no frills. Intentionally naive for learning. Adjustable frame sizes, downsampling toggles

@playground-sessions/basic-pitch

Experimental browser pitch detection sandbox (naive autocorrelation/AMDF/FFT). My first try at Web Audio pitch detection, rough

@playground-sessions/chroma-chips

Twelve-bin chroma features for stabilizing pitch estimates and note labeling. Demonstrates mixing spectral features with a time-domain pitch guess to reduce octave errors on guitar/voice.

@playground-sessions/detune-calibrator

Measures and stores device-specific detune/sample-rate quirks using a short reference tone, then applies a correction to your pitch readouts. Especially helpful on mobile browsers and Bluetooth paths. (Another Pitch Jam '25 toy project.)

@playground-sessions/hps-detector

Harmonic Product Spectrum via FFT for pitch detection. Includes side-by-side graphs to compare peak picking strategies and shows that HPS can be more robust on rich tones.

@playground-sessions/mpm-pitch-worklet

McLeod Pitch Method running inside an AudioWorkletNode with a ring buffer to the UI thread. Emits { frequency, confidence } events and a simple rolling contour for quick visual sanity checks.

@playground-sessions/note-finder-ts

Utility that turns raw audio into musical note names with configurable tuning (A4, temperaments) and returns { note, octave, cents }. Ships as ESM with TypeScript types and zero runtime deps.

@playground-sessions/pitch-simple

A tiny, dependency-free tuner demo for the browser. Uses a straightforward autocorrelation window and exposes Hz, MIDI, and cents. Great as a first "hello, mic" for pitch work.

@playground-sessions/yin-wasm

YIN pitch detection compiled to WebAssembly with a minimal JS wrapper. Ships a playground page and typed APIs so you can swap thresholds and hop sizes and see the effect in real time. (Built during WebAudio Pitch Jam '25.)