introduction

Tools built for musicians, students and listeners — from a full web platform for cymbal analysis to small self-contained browser instruments. Nothing to buy; open them on a laptop or a phone and they work straight away.

cymbal forensics


  • Cymbal Forensics is a web platform for forensic spectral analysis of struck-idiophone recordings — cymbals, gongs, and bells. Upload a recording and the server decodes it and runs a reproducible DSP pipeline (FFT/STFT, onset detection, partial tracking, decay and MFCC analysis), then renders the results across 28 analysis tabs grouped into seven views: 3 Axes, Attack, Over Time, Over Frequency, Per Partial, Quantifiers, and Qualifiers — including an interactive 3D spectral waterfall you can rotate and scrub in sync with playback.

    Beyond analysis, it's a community instrument: a public library of cymbals and takes, side-by-side comparison and similarity mapping that bridges human perception with measured quantifiers, a microtonal scale extractor that folds a cymbal's partials into a playable scale (with Scala export and world-scale matching), pooled multi-take averaging, a discussion forum, per-user uploads with role-based access, and admin moderation.

    • ticker — metronome trainer


  • Ticker is a metronome built for practising odd-time grooves and gradual tempo work rather than just keeping a steady pulse. Sessions are organised as staircases that step the tempo up or down over time, so you can drill a passage from slow to fast hands-free. It offers tap tempo, randomisation and variation of patterns, a sound sequencer with swappable primary and secondary voices and panning, and saveable presets that can be exported and imported. A focused tool for building rhythmic stamina and internalising complex meters.

    • sweeper — loudspeaker listening test suite


  • Sweeper is a signal generator for testing and auditioning loudspeakers, rooms and headphones. It produces sine sweeps, stepped tone bursts and notch sweeps across a chosen frequency range, alongside coloured noise and fixed reference tones, each with adjustable level, sweep time and looping. Useful for assessing frequency response, resonances and decay by ear, and for the kind of subjective listening tests covered in the acoustics and psychoacoustics courses.