Media
Turn one music track into a complete remix pack: BPM, key (with Camelot), cue points, four Demucs stems, an MP3 preview, and a metadata JSON — all in one ZIP.
audio-remix-pack-builderCryptography
Simulate BLS12-381 BLS signatures end to end: Joint-Feldman DKG ceremonies, t-of-n threshold signing with Lagrange interpolation, the rogue-key attack and its proof-of-possession defense, and Ethereum 2 attestation aggregation.
bls-boneh-lynn-shacham-threshold-signature-aggregation-distributed-key-gen-simulatorMedia
Design and render musical fade-ins and fade-outs: bar-based lengths at your BPM or lengths auto-derived from detected silence, fades placed against the real music span, logarithmic curves, optional silence trimming.
audio-automatic-fade-designerMedia
Blend the dry signal with a heavily compressed, makeup-gained copy — upward compression that lifts quiet detail while the dry path keeps its punch, built from FFmpeg.
audio-parallel-compressionMedia
Brighten dull vocals or masters with a high air shelf plus an exciter that synthesizes new top-end harmonics — the Aphex Aural Exciter architecture built from FFmpeg.
audio-air-band-enhancerMedia
Run audio through a simulated tape machine: tanh magnetic soft clipping, speed-dependent head bump and HF rolloff, wow & flutter, and tape hiss — with 3.75/7.5/15/30 IPS presets.
audio-analog-tape-saturationMedia
Add single-ended tube-preamp coloration: an asymmetric waveshaper whose bias control sets the even-harmonic warmth, with drive, tone tilt, dry/wet mix and output trim.
audio-tube-preamp-saturationMedia
Fold everything below your crossover to mono while keeping the stereo image above it — the elliptical-EQ move that protects vinyl cuts and mono-sub club systems.
audio-sub-bass-mono-makerCompression
Upload a PNG or APNG and audit the whole animation structure: PNG signature and per-chunk CRC32 checks, IHDR bit depth / color type / interlace, acTL placement and declared frame counts, every fcTL (region bounds inside the canvas, normalized delay fractions, dispose_op none/background/previous, blend_op source/over), the shared fcTL+fdAT sequence-number contract from 0, per-frame replay of the IDAT/fdAT deflate streams with exact decompressed-size verification, and disposal-semantics audit — first-frame PREVIOUS treated as BACKGROUND, zero-delay frames, loop counts, fps and compression ratios.
apng-idat-fdat-chunk-streaming-deflate-replay-and-disposal-method-analyzerMedia
Map world tunings — 7-limit just blues, Arabic maqamat (Rast/Bayati/Hijaz/Saba) on 24-EDO quarter tones, the 22-shruti table, gamelan slendro/pelog, 31-EDO, 53-EDO and the A440 harmonic grid — onto nearest-note + RPN fine tuning, MPE 14-bit bends at ±2/±24/±48/±96 semitones, MIDI 2.0 32-bit pitch bend, the MIDI 2.0 Pitch 7.9 note attribute, and a Scala .scl export.
blues-ragas-modes-microtonal-pitch-bend-midi-2-and-maqam-tuning-tutorUtilities
Decode home and commercial electric/gas/water bills: classify tariff riders and charges (CSR/CFL/MHC/HFA-style codes, TOU on/off-peak, demand, capacity tag, decoupling), convert kWh↔Btu↔therms↔Ccf↔m³↔ton-hours with EIA factors, expose hidden fixed fees, and project annual cost with load-factor and peak-shaving savings.
csr-cfl-cfl-mhc-hfa-btu-ton-hours-utility-bill-line-item-validator-and-rgp-peak-explainerHealth
Plan six evidence-based breathing protocols — Wim Hof (30 breaths + retention + recovery), coherent/resonance ~5.5 bpm at the 0.1 Hz RSA peak, 4-7-8, box 4-4-4-4, Tummo-style and Buteyko reduced breathing — with a per-second timeline, capnometer-style EtCO2 trajectory model, parasympathetic/sympathetic phase marking, CP/BOLT reference and contraindication warnings.
breath-coherent-resonance-frequency-wim-hof-tummo-box-4-7-8-and-capnometer-etco2-estimation-coach